CURSOR_SHARING FORCE
hi all,
When i set the parameter CURSOR_SHARING = FORCE, on INSERT STATEMENTS i have blank spaces added.
Ex :
INSERT INTO TABLE1(COL1)
VALUES('VALUE1');
SELECT COL1 FROM TABLE1;
Result : 'VALUE1 '
I get 'VALUES1' with spaces after...
ORACLE : 9.2.0.7
Windows 2003 Server 32 Bits
Any ideas ?
Thank you !
Because datatype of COL1 is char. See below :
SQL> drop table t purge;
Table dropped.
SQL> create table t(col1 varchar2(10),col2 char(10));
Table created.
SQL> insert into t values ('aaa','xxx');
1 row created.
SQL> select * from t;
COL1 COL2
aaa xxx
SQL> select col1||col2 from t;
COL1||COL2
aaaxxx
SQL> select col2||col1 from t;
COL2||COL1
xxx aaaHTH
Girish Sharma
Similar Messages
-
Cursor_sharing force partially parameter sql
Hi ,
We are running our application with weblogic ,jdbc thin client with Oracle 9.2.0.5 database.
We have set cursor_sharing=FORCE in init.ora.
Our problem.
Java prepared statement with partial variable substitution is not sharing cursors, All other type of executions like update using sqlplus or without prepared statement they are sharing the cursors.
For example.
1)
UPDATE t1 SET col1=? WHERE id = 123
This gets translated into
UPDATE t1 SET col1= :1 WHERE nid = 123
where as
2)
UPDATE t1 SET col1=? WHERE id = ?
It gets translated into
UPDATE t1 SET col1= :1 WHERE nid = :2
We haved 1000 of update statements run in our application as example 1)
which is not sharing cursor.
Is there any parameter we can set in database?
This is happening in 9.2.0.6 also.<quote>Is there any parameter we can set in database?</quote>
No.
And the behavior you describe actually makes sense. If you used bind variables where you considered it to be appropriate [and conversely, didnt use them where it wasnt appropriate], why would Oracle come in and override your decision by blindingly replacing all remaining literals with binds?
<quote>We haved 1000 of update statements run in our application as example 1) which is not sharing cursor.</quote>
Then those statements have to be re-written. CURSOR_SHARING=FORCE at the instance level is supposed to be a temporary band-aid anyway the fix is to address the underlying coding problem and revert to CURSOR_SHARING=EXACT. Maybe, just maybe have CURSOR_SHARING other than EXACT at session level surrounding some particular piece of code deemed too risky to re-code (3rd party, undocumented, too obscure) but some regular UPDATEs? just fix. -
Cursor_sharing改成force,会引起什么bug吗?
公司的数据库内有一套老的应用，跑了好多年了，但没有绑定变量，导致SQLAREA占用大量资源
我想将cursor_sharing改成force，会不会引起bug
我在此之前将此参数similar ，应用会报错
数据库版 10.2.0.4 64bit
SELECT substr(sql_text, 1, 40) "SQL", count(*), sum(executions) "TotExecs"
FROM v$sqlarea
WHERE executions < 5
GROUP BY substr(sql_text, 1, 40) HAVING count(*) > 30 ORDER BY 2 desc;
结果为
1 SELECT ………… 22625 23047
2 insert ………… 21437 21437
3 insert ………… 21429 21429
4 select ………… 19464 22630
5 delete ………… 18655 18655
6 INSERT ………… 18078 20520
7 SELECT ………… 13218 15798
8 INSERT ………… 9060 9060
9 INSERT ………… 9060 9060
10 select ………… 7870 8451
11 insert ………… 7837 8350
12 select ………… 7790 7790
13 select ………… 7789 7789
14 insert ………… 7768 7937
15 SELECT ………… 7716 9052
16 insert ………… 6636 6643
17 SELECT ………… 6392 6392
18 UPDATE ………… 6077 6439
19 SELECT ………… 6027 6389
20 update ………… 4414 4414
21 INSERT ………… 4018 40161. 不推荐在任何版本上继续使用 CURSOR_SHARING=SIMILAR
2. cursor_sharing=force 在某些特性条件下会触发bug， 主要是在低版本(9iR2,10gR2早期)，具体是否触发bug取决于SQL的写法。
建议你直接参考以下 10.2.0.4上cursor_sharing的 bug list:
NB Bug Fixed Description
12862170 12.1.0.0 INSERT ALL fails with ORA-600[kkslhsh1] with CURSOR_SHARING enabled / High Version Count on HASH_MATCH_FAILED
12374212 11.2.0.3, 12.1.0.0 Assorted dump , internal errors, memory corruptions with cursor_sharing = force
12334286 11.2.0.3, 12.1.0.0 High version counts with CURSOR_SHARING=FORCE (BIND_MISMATCH and INCOMP_LTRL_MISMATCH)
11063191 11.2.0.2.7, 11.2.0.2.BP17, 11.2.0.3.2, 11.2.0.3.BP04, 12.1.0.0 ORA-4031 with hint /*+ CURSOR_SHARING_EXACT */ - excessive "KKSSP^nn" memory
10013170 11.2.0.3, 12.1.0.0 ORA-600 [736] from literal replacement with a "WAIT n" clause
9877964 11.2.0.3, 12.1.0.0 ORA-600 [19003] raised by LIKE :BIND in query
9680430 11.2.0.3, 12.1.0.0 High version count with CURSOR_SHARING = FORCE due to CBO transformation
9411496 11.2.0.2, 12.1.0.0 ORA-979 on GROUP BY query with CURSOR_SHARING set
9362218 11.2.0.2, 12.1.0.0 Literals replaced by binds when CURSOR_SHARING=EXACT
9348402 12.1.0.0 OERI [kks-hash-collision] can occur with CURSOR_SHARING=FORCE|SIMILAR
9223586 11.2.0.2, 12.1.0.0 Problems with variable length NCHAR literals with cursor sharing
9031183 11.2.0.2, 12.1.0.0 ORA-1722 with CURSOR_SHARING=SIMILAR and with NCHAR
8246445 11.2.0.2, 12.1.0.0 Query rewrite not working for multi-MV rewrite with literal replacement
5751866 11.2.0.2 Wrong Results with CASE and CURSOR_SHARING
9767674 10.2.0.5.5 Dump [kkslmtl] using CURSOR_SHARING - superceded
8794693 11.2.0.2 Dump [kkscsmtl] using literal replacement (CURSOR_SHARING)
8453245 11.2.0.1 Many child cursors with CURSOR_SHARING = FORCE
8264642 11.2.0.1 ORA-600 [kkexbindopn0] with CURSOR_SHARING = SIMILAR
7516867 10.2.0.5, 11.1.0.7.1, 11.2.0.1 Intermittent Wrong results from literal replacement with fix for bug 6163785
7272297 10.2.0.4.1, 10.2.0.5, 11.1.0.7, 11.2.0.1 Memory corruption / OERI[17114] / OERI[17125] with literal replacement
6337716 10.2.0.5, 11.1.0.7, 11.2.0.1 Wrong max column size for NULL strings with literal replacement
4071519 10.2.0.5, 11.1.0.7, 11.2.0.1 GROUP BY query with CURSOR_SHARING fails with ORA-1802
3461251 11.1.0.7, 11.2.0.1 V$SQL_SHARED_CURSOR shows all N with CURSOR_SHARING
7296258 10.2.0.5, 11.1.0.7.1 Intermittent Wrong results from literal replacement and remote objects
6163785 10.2.0.5, 11.1.0.7 Intermittent Wrong Results with dblink and cursor_sharing
8202234 Intermittent Wrong Results with dblink and cursor_sharing
4867724 10.2.0.5, 11.1.0.6 Literal replacement limits column names to 30 characters -
Confused about cursor_sharing=force
SQL> col name for a20
SQL> col type for a20
SQL> show parameter cursor_sharing
NAME TYPE
VALUE
cursor_sharing string
FORCE
SQL> drop table test;
Table dropped.
SQL> create table test(id int,name varchar2(100));
Table created.
SQL> insert into test select 1,object_name from dba_objects;
49794 rows created.
SQL> insert into test select object_id,object_name from dba_objects;
49794 rows created.
SQL> create index i_test_1 on test(id);
Index created.
SQL> analyze table test compute statistics for table for all indexes for all
2 indexed columns size 254;
Table analyzed.
SQL> set autot trace
SQL> select * from test where id=1;
49794 rows selected.
Execution Plan
Plan hash value: 1357081020
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 49402 | 1495K| 106 (4)| 00:00:02 |
|* 1 | TABLE ACCESS FULL| TEST | 49402 | 1495K| 106 (4)| 00:00:02 |
Predicate Information (identified by operation id):
1 - filter("ID"=1)
Statistics
1 recursive calls
0 db block gets
3766 consistent gets
148 physical reads
0 redo size
1489087 bytes sent via SQL*Net to client
36894 bytes received via SQL*Net from client
3321 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
49794 rows processed
SQL> select * from test where id=10000;
no rows selected
Execution Plan
Plan hash value: 3275607494
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Ti
me |
| 0 | SELECT STATEMENT | | 1 | 31 | 2 (0)| 00
:00:01 |
| 1 | TABLE ACCESS BY INDEX ROWID| TEST | 1 | 31 | 2 (0)| 00
:00:01 |
|* 2 | INDEX RANGE SCAN | I_TEST_1 | 1 | | 1 (0)| 00
:00:01 |
Predicate Information (identified by operation id):
2 - access("ID"=10000)
Statistics
0 recursive calls
0 db block gets
462 consistent gets
58 physical reads
0 redo size
325 bytes sent via SQL*Net to client
374 bytes received via SQL*Net from client
1 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
0 rows processed
why not choose full table scan here?????
There are no rows returned, why still have 462 consistent gets
SQL> set autot off
SQL> select sql_text,version_count from v$sqlarea where sql_text like
2 'select * from test%';
SQL_TEXT
VERSION_COUNT
select * from test where id=:"SYS_B_0"
1
oracle version :10.2.0.1
os :windows xp
Edited by: jinyu on Aug 27, 2008 10:03 PMSQL> ALTER SESSION SET NLS_LANGUAGE=AMERICAN;
Session altered.
SQL> alter system set cursor_sharing=force;
System altered.
SQL> create table test as select 1 id,object_name from dba_objects;
Table created.
SQL> insert into test select object_id,object_name from dba_objects;
49794 rows created.
SQL> commit;
Commit complete.
SQL> create index i_test_1 on test(id);
Index created.
SQL> analyze table test compute statistics for table for all indexes for all indexed columns size 25
4;
Table analyzed.
SQL> set autot trace
SQL> select * from test where id=1;
49794 rows selected.
Execution Plan
Plan hash value: 1357081020
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 49402 | 1495K| 106 (4)| 00:00:02 |
|* 1 | TABLE ACCESS FULL| TEST | 49402 | 1495K| 106 (4)| 00:00:02 |
Predicate Information (identified by operation id):
1 - filter("ID"=1)
Statistics
1 recursive calls
0 db block gets
3768 consistent gets
4 physical reads
0 redo size
1489094 bytes sent via SQL*Net to client
36894 bytes received via SQL*Net from client
3321 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
49794 rows processed
SQL> select * from test where id=10000;
no rows selected
Execution Plan
Plan hash value: 3275607494
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Ti
me |
| 0 | SELECT STATEMENT | | 1 | 31 | 2 (0)| 00
:00:01 |
| 1 | TABLE ACCESS BY INDEX ROWID| TEST | 1 | 31 | 2 (0)| 00
:00:01 |
|* 2 | INDEX RANGE SCAN | I_TEST_1 | 1 | | 1 (0)| 00
:00:01 |
Predicate Information (identified by operation id):
2 - access("ID"=10000)
Statistics
0 recursive calls
0 db block gets
462 consistent gets
14 physical reads
0 redo size
332 bytes sent via SQL*Net to client
374 bytes received via SQL*Net from client
1 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
0 rows processed
SQL> select sql_text,PLAN_HASH_VALUE,version_count,executions,parse_calls
2 from v$sqlarea where sql_text like '%select * from test%';
SQL_TEXT
PLAN_HASH_VALUE VERSION_COUNT EXECUTIONS PARSE_CALLS
EXPLAIN PLAN SET STATEMENT_ID='PLUS4294967295' FOR select * from test where id=1
1357081020 1 1 1
select * from test where id=:"SYS_B_0"
1357081020 1 2 2
EXPLAIN PLAN SET STATEMENT_ID='PLUS4294967295' FOR select * from test where id=1
0000
3275607494 1 1 1
SQL_TEXT
PLAN_HASH_VALUE VERSION_COUNT EXECUTIONS PARSE_CALLS
--------------- ------------- ---------- ----------- -
Set cursor_sharing=force not work
SUNDOG315>show parameter cursor_sharing
NAME TYPE
VALUE
cursor_sharing string
EXACT
SUNDOG315>select count(*) from dba_objects where object_id=1;
COUNT(*)
0
SUNDOG315>select count(*) from dba_objects where object_id=2;
COUNT(*)
1
SUNDOG315>select count(*) from dba_objects where object_id=3;
COUNT(*)
1
SUNDOG315>select sql_text from v$sql where sql_text like 'select count(*) from d
ba_objects%';
SQL_TEXT
select count(*) from dba_objects where object_id=1
select count(*) from dba_objects where object_id=3
select count(*) from dba_objects where object_id=2
SUNDOG315>alter system set cursor_sharing=force;
系统已更改。
SUNDOG315>alter system flush shared_pool;
系统已更改。
SUNDOG315>select sql_text from v$sql where sql_text like 'select count(*) from d
ba_objects%';
未选定行
SUNDOG315>select count(*) from dba_objects where object_id=1;
COUNT(*)
0
SUNDOG315>select count(*) from dba_objects where object_id=2;
COUNT(*)
1
SUNDOG315>select count(*) from dba_objects where object_id=3;
COUNT(*)
1
SUNDOG315>select sql_text from v$sql where sql_text like 'select count(*) from d
ba_objects%';
SQL_TEXT
select count(*) from dba_objects where object_id=1
select count(*) from dba_objects where object_id=3
select count(*) from dba_objects where object_id=2
SUNDOG315>show parameter cursor_sharing
NAME TYPE
VALUE
cursor_sharing string
FORCE
Edited by: Lei Liu on Oct 20, 2010 4:44 PM
Edited by: Lei Liu on Oct 20, 2010 4:44 PMWhat is your 4 digits Oracle version ?
I cannot reproduce this even with Oracle XE:
SQL> show parameter cursor_sharing
NAME TYPE
VALUE
cursor_sharing string
FORCE
SQL>
select sql_text from v$sql where sql_text like '%dba_objects%';
SQL_TEXT
select sql_text from v$sql where sql_text like '%dba_objects%'
select count(*) from dba_objects where object_id=:"SYS_B_0"
select count(*) from dba_objects where object_id=3 -
CURSOR_SHARING fixed in Release 2?
The IT team, here, had initially set CURSOR_SHARING to SIMILAR in 10g R1. They noticed that we were getting incorrect Data Dictionary values. So CURSOR_SHARING had to be set back to EXACT. It was a bug in 10g R1. Does anybody know if this issue was fixed in Release 2?
I looked it up and it looks like it was addressed as a bug fix in Release 2 in the "10.2.0.3 Patch Set - List of Bug Fixes by Problem Type". Doc ID: Note:391116.1.
I'm pasting the category of the bug fixs "Literal Replacement (CURSOR_SHARING)" along with the number and the text for the fix. This does seem to be related to DBMS_SQL:
Literal Replacement (CURSOR_SHARING)
4200541 -->Parse error when CURSOR_SHARING=FORCE|SIMILAR with user binds<--
4254094 OERI[QERRMOBND1][932] possible for queries over DB links
4607460 Dump [opipls] when CURSOR_SHARING = SIMILAR | FORCE
4698156 ORA-12850 querying GV$ views when CURSOR_SHARING=FORCE
5055175 Dump [kkslpkp] using literal replacement with timezone literals -
I have a situation where several off-the-shelf applications (same vendor) are running on the same instance. One of the is performing poorly and I was able to get a good performance boost with cursor_sharing=force. After much testing in QA, we are ready to move it to production.
Now two of the other applications are having trouble. Apparently, the applications do some very basic selects from sqlplus and then parse the results. Setting cursor_sharing to force has had a side-effect (bug) that changes the column widths of these selects. The end result is that the other application fails because it can't parse it correctly.
This is a documented problem and Oracle recommends to always explicitly set your column widths in sqlplus. This is what we want to do, but the effort is not small.
A kludge work-around is to alter cursor_sharing before and after the batch processes. This can be done at either the system or session level.
My question is this: Is there a simple way to set it up so an that when this black-box application create a session, it will set the cursor_sharing to force?
Thanks,
Scott
http://www.erpfuture.comI have a situation where several off-the-shelf
applications (same vendor) are running on the same
instance. One of the is performing poorly and I was
able to get a good performance boost with
cursor_sharing=force. After much testing in QA, we
are ready to move it to production.
Now two of the other applications are having trouble.
Apparently, the applications do some very basic
c selects from sqlplus and then parse the results.
Setting cursor_sharing to force has had a
a side-effect (bug) that changes the column widths of
these selects. Actually it is the off the shelf applications that have the bug, they are not using bind variables which means you are overparsing and fragmenting your shared pool. Poor performance is about the best you will get from such applications. You are also likely open to security issues that arise from [url=http://www.google.com/search?q=sql+injection
]sql injection.
Cursor sharing force is a workaround for a badly written application. It auto binds all literals. This means plans will change and all literal values are variables which could contain anything which leads to the problem you describe.
select 'test' from dual;becomes
select :b_sys_0 from dual;where :b_sys_0 could be 4000 characters long.
I would second kamathg's advice that if you need to use the cursor sharing workaround to only set it at the session level for the application that needs it using the logon trigger.
You should do this as an interim measure while you file a bug report with the software vendor to have them fix their application.
The security issues do not go away. -
Alternative to cursor_sharing parameter
Hello,
We presently have a 3rd party application that has an Oracle 9.2.0.8 db with statistics run on it and would like to improve performance with some bind variable queries in setting the cursor_sharing = force.
The problem is that when certain queries return a larger character set string, the apps does not accept and errors out.
Does anyone have any experience with this parameter and it's alternatives?
Much appreciated.
JRHi JR,
would like to improve performance with some bind variable queries in Cursor_sharing is a Godsend for shops with vendor SQL that cannot be changed, and for shops with ad-hoc query where literals appear in the SQL.
Does anyone have any experience with this parameter and it's alternatives?Before cursor_sharing, we made the shared_pool very tiny.
Since there was no reason to cached non-reentrant SQL, why even have a shared pool?
Obviously, the best remedy is to re-write your code to use host variables, but that's rarely a practical solution!
Also note that cursor_sharing=similar now works in 11g . . .
I have some notes here that you may find helpdul:
http://www.dba-oracle.com/t_cursor_sharing.htm
Hope this helps . . .
Donald K. Burleson
Oracle Press author
Author of "Oracle Tuning: The Definitive Reference"
http://www.rampant-books.com/book_2005_1_awr_proactive_tuning.htm -
ORA-01008 with ref cursor and dynamic sql
When I run the follwing procedure:
variable x refcursor
set autoprint on
begin
Crosstab.pivot(p_max_cols => 4,
p_query => 'select job, count(*) cnt, deptno, row_number() over (partition by job order by deptno) rn from scott.emp group by job, deptno',
p_anchor => Crosstab.array('JOB'),
p_pivot => Crosstab.array('DEPTNO', 'CNT'),
p_cursor => :x );
end;I get the following error:
^----------------
Statement Ignored
set autoprint on
begin
adsmgr.Crosstab.pivot(p_max_cols => 4,
p_query => 'select job, count(*) cnt, deptno, row_number() over (partition by
p_anchor => adsmgr.Crosstab.array('JOB'),
p_pivot => adsmgr.Crosstab.array('DEPTNO', 'CNT'),
p_cursor => :x );
end;
ORA-01008: not all variables bound
I am running this on a stored procedure as follows:
create or replace package Crosstab
as
type refcursor is ref cursor;
type array is table of varchar2(30);
procedure pivot( p_max_cols in number default null,
p_max_cols_query in varchar2 default null,
p_query in varchar2,
p_anchor in array,
p_pivot in array,
p_cursor in out refcursor );
end;
create or replace package body Crosstab
as
procedure pivot( p_max_cols in number default null,
p_max_cols_query in varchar2 default null,
p_query in varchar2,
p_anchor in array,
p_pivot in array,
p_cursor in out refcursor )
as
l_max_cols number;
l_query long;
l_cnames array;
begin
-- figure out the number of columns we must support
-- we either KNOW this or we have a query that can tell us
if ( p_max_cols is not null )
then
l_max_cols := p_max_cols;
elsif ( p_max_cols_query is not null )
then
execute immediate p_max_cols_query into l_max_cols;
else
RAISE_APPLICATION_ERROR(-20001, 'Cannot figure out max cols');
end if;
-- Now, construct the query that can answer the question for us...
-- start with the C1, C2, ... CX columns:
l_query := 'select ';
for i in 1 .. p_anchor.count
loop
l_query := l_query || p_anchor(i) || ',';
end loop;
-- Now add in the C{x+1}... CN columns to be pivoted:
-- the format is "max(decode(rn,1,C{X+1},null)) cx+1_1"
for i in 1 .. l_max_cols
loop
for j in 1 .. p_pivot.count
loop
l_query := l_query ||
'max(decode(rn,'||i||','||
p_pivot(j)||',null)) ' ||
p_pivot(j) || '_' || i || ',';
end loop;
end loop;
-- Now just add in the original query
l_query := rtrim(l_query,',')||' from ( '||p_query||') group by ';
-- and then the group by columns...
for i in 1 .. p_anchor.count
loop
l_query := l_query || p_anchor(i) || ',';
end loop;
l_query := rtrim(l_query,',');
-- and return it
execute immediate 'alter session set cursor_sharing=force';
open p_cursor for l_query;
execute immediate 'alter session set cursor_sharing=exact';
end;
end;
/I can see from the error message that it is ignoring the x declaration, I assume it is because it does not recognise the type refcursor from the procedure.
How do I get it to recognise this?
Thank you in advanceThank you for your help
This is the version of Oracle I am running, so this may have something to do with that.
Oracle9i Enterprise Edition Release 9.2.0.8.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.8.0 - Production
I found this on Ask Tom (http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:3027089372477)
Hello, Tom.
I have one bind variable in a dynamic SQL expression.
When I open cursor for this sql, it gets me to ora-01008.
Please consider:
Connected to:
Oracle8i Enterprise Edition Release 8.1.7.4.1 - Production
JServer Release 8.1.7.4.1 - Production
SQL> declare
2 type cur is ref cursor;
3 res cur;
4 begin
5 open res for
6 'select * from (select * from dual where :p = 1) connect by 1 = 1'
7 using 1;
8 end;
9 /
declare
ERROR at line 1:
ORA-01008: not all variables bound
ORA-06512: at line 5
SQL> declare
2 type cur is ref cursor;
3 res cur;
4 begin
5 open res for
6 'select * from (select * from dual where :p = 1) connect by 1 = 1'
7 using 1, 2;
8 end;
9 /
PL/SQL procedure successfully completed.
And if I run the same thing on 10g -- all goes conversely. The first part runs ok, and the second
part reports "ORA-01006: bind variable does not exist" (as it should be, I think). Remember, there
is ONE bind variable in sql, not two. Is it a bug in 8i?
What should we do to avoid this error running the same plsql program code on different Oracle
versions?
P.S. Thank you for your invaluable work on this site.
Followup June 9, 2005 - 6pm US/Eastern:
what is the purpose of this query really?
but it would appear to be a bug in 8i (since it should need but one). You will have to work that
via support. I changed the type to tarray to see if the reserved word was causing a problem.
variable v_refcursor refcursor;
set autoprint on;
begin
crosstab.pivot (p_max_cols => 4,
p_query =>
'SELECT job, COUNT (*) cnt, deptno, ' ||
' ROW_NUMBER () OVER ( ' ||
' PARTITION BY job ' ||
' ORDER BY deptno) rn ' ||
'FROM emp ' ||
'GROUP BY job, deptno',
p_anchor => crosstab.tarray ('JOB'),
p_pivot => crosstab.tarray ('DEPTNO', 'CNT'),
p_cursor => :v_refcursor);
end;
/Was going to use this package as a stored procedure in forms but I not sure it's going to work now. -
Post Upgrade SQL Performance Issue
Hello,
I Just Upgraded/Migrated my database from 11.1.0.6 SE to 11.2.0.3 EE. I did this with datapump export/import out of the 11.1.0.6 and into a new 11.2.0.3 database. Both the old and the new database are on the same Linux server. The new database has 2GB more RAM assigned to its SGA then the old one. Both DB are using AMM.
The strange part is I have a SQL statement that completes in 1 second in the Old DB and takes 30 seconds in the new one. I even moved the SQL Plan from the Old DB into the New DB so they are using the same plan.
To sum up the issue. I have one SQL statement using the same SQL Plan running at dramatically different speeds on two different databases on the same server. The databases are 11.1.0.7 SE and 11.2.0.3 EE.
Not sure what is going on or how to fix it, Any help would be great!
I have included Explains and Auto Traces from both NEW and OLD databases.
NEW DB Explain Plan (Slow)
Plan hash value: 1046170788
| Id | Operation | Name | Rows | Bytes |TempSpc| Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 94861 | 193M| | 74043 (1)| 00:18:52 |
| 1 | SORT ORDER BY | | 94861 | 193M| 247M| 74043 (1)| 00:18:52 |
| 2 | VIEW | PBM_MEMBER_INTAKE_VW | 94861 | 193M| | 31803 (1)| 00:08:07 |
| 3 | UNION-ALL | | | | | | |
| 4 | NESTED LOOPS OUTER | | 1889 | 173K| | 455 (1)| 00:00:07 |
|* 5 | HASH JOIN | | 1889 | 164K| | 454 (1)| 00:00:07 |
| 6 | TABLE ACCESS FULL| PBM_CODES | 2138 | 21380 | | 8 (0)| 00:00:01 |
|* 7 | TABLE ACCESS FULL| PBM_MEMBER_INTAKE | 1889 | 145K| | 446 (1)| 00:00:07 |
|* 8 | INDEX UNIQUE SCAN | ADJ_PK | 1 | 5 | | 1 (0)| 00:00:01 |
| 9 | NESTED LOOPS | | 92972 | 9987K| | 31347 (1)| 00:08:00 |
| 10 | NESTED LOOPS OUTER| | 92972 | 8443K| | 31346 (1)| 00:08:00 |
|* 11 | TABLE ACCESS FULL| PBM_MEMBERS | 92972 | 7989K| | 31344 (1)| 00:08:00 |
|* 12 | INDEX UNIQUE SCAN| ADJ_PK | 1 | 5 | | 1 (0)| 00:00:01 |
|* 13 | INDEX UNIQUE SCAN | PBM_EMPLOYER_UK1 | 1 | 17 | | 1 (0)| 00:00:01 |
Predicate Information (identified by operation id):
5 - access("C"."CODE_ID"="MI"."STATUS_ID")
7 - filter("MI"."CLAIM_NUMBER" LIKE '%A0000250%' AND "MI"."CLAIM_NUMBER" IS NOT NULL)
8 - access("MI"."ADJUSTER_ID"="A"."ADJUSTER_ID"(+))
11 - filter("M"."THEIR_GROUP_ID" LIKE '%A0000250%' AND "M"."THEIR_GROUP_ID" IS NOT NULL)
12 - access("M"."ADJUSTER_ID"="A"."ADJUSTER_ID"(+))
13 - access("M"."GROUP_CODE"="E"."GROUP_CODE" AND "M"."EMPLOYER_CODE"="E"."EMPLOYER_CODE")
Note
- SQL plan baseline "SYS_SQL_PLAN_a3c20fdcecd98dfe" used for this statement
OLD DB Explain Plan (Fast)
Plan hash value: 1046170788
| Id | Operation | Name | Rows | Bytes |TempSpc| Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 95201 | 193M| | 74262 (1)| 00:14:52 |
| 1 | SORT ORDER BY | | 95201 | 193M| 495M| 74262 (1)| 00:14:52 |
| 2 | VIEW | PBM_MEMBER_INTAKE_VW | 95201 | 193M| | 31853 (1)| 00:06:23 |
| 3 | UNION-ALL | | | | | | |
| 4 | NESTED LOOPS OUTER | | 1943 | 178K| | 486 (1)| 00:00:06 |
|* 5 | HASH JOIN | | 1943 | 168K| | 486 (1)| 00:00:06 |
| 6 | TABLE ACCESS FULL| PBM_CODES | 2105 | 21050 | | 7 (0)| 00:00:01 |
|* 7 | TABLE ACCESS FULL| PBM_MEMBER_INTAKE | 1943 | 149K| | 479 (1)| 00:00:06 |
|* 8 | INDEX UNIQUE SCAN | ADJ_PK | 1 | 5 | | 0 (0)| 00:00:01 |
| 9 | NESTED LOOPS | | 93258 | 9M| | 31367 (1)| 00:06:17 |
| 10 | NESTED LOOPS OUTER| | 93258 | 8469K| | 31358 (1)| 00:06:17 |
|* 11 | TABLE ACCESS FULL| PBM_MEMBERS | 93258 | 8014K| | 31352 (1)| 00:06:17 |
|* 12 | INDEX UNIQUE SCAN| ADJ_PK | 1 | 5 | | 0 (0)| 00:00:01 |
|* 13 | INDEX UNIQUE SCAN | PBM_EMPLOYER_UK1 | 1 | 17 | | 0 (0)| 00:00:01 |
Predicate Information (identified by operation id):
5 - access("C"."CODE_ID"="MI"."STATUS_ID")
7 - filter("MI"."CLAIM_NUMBER" LIKE '%A0000250%')
8 - access("MI"."ADJUSTER_ID"="A"."ADJUSTER_ID"(+))
11 - filter("M"."THEIR_GROUP_ID" LIKE '%A0000250%')
12 - access("M"."ADJUSTER_ID"="A"."ADJUSTER_ID"(+))
13 - access("M"."GROUP_CODE"="E"."GROUP_CODE" AND "M"."EMPLOYER_CODE"="E"."EMPLOYER_CODE")
NEW DB Auto trace (Slow)
active txn count during cleanout 0
blocks decrypted 0
buffer is not pinned count 664129
buffer is pinned count 3061793
bytes received via SQL*Net from client 3339
bytes sent via SQL*Net to client 28758
Cached Commit SCN referenced 662366
calls to get snapshot scn: kcmgss 3
calls to kcmgas 0
calls to kcmgcs 8
CCursor + sql area evicted 0
cell physical IO interconnect bytes 0
cleanout - number of ktugct calls 0
cleanouts only - consistent read gets 0
cluster key scan block gets 0
cluster key scans 0
commit cleanout failures: block lost 0
commit cleanout failures: callback failure 0
commit cleanouts 0
commit cleanouts successfully completed 0
Commit SCN cached 0
commit txn count during cleanout 0
concurrency wait time 0
consistent changes 0
consistent gets 985371
consistent gets - examination 2993
consistent gets direct 0
consistent gets from cache 985371
consistent gets from cache (fastpath) 982093
CPU used by this session 3551
CPU used when call started 3551
CR blocks created 0
cursor authentications 1
data blocks consistent reads - undo records applied 0
db block changes 0
db block gets 0
db block gets direct 0
db block gets from cache 0
db block gets from cache (fastpath) 0
DB time 3553
deferred (CURRENT) block cleanout applications 0
dirty buffers inspected 0
Effective IO time 0
enqueue releases 0
enqueue requests 0
execute count 3
file io wait time 0
free buffer inspected 0
free buffer requested 0
heap block compress 0
Heap Segment Array Updates 0
hot buffers moved to head of LRU 0
HSC Heap Segment Block Changes 0
immediate (CR) block cleanout applications 0
immediate (CURRENT) block cleanout applications 0
IMU Flushes 0
IMU ktichg flush 0
IMU Redo allocation size 0
IMU undo allocation size 0
index fast full scans (full) 2
index fetch by key 0
index scans kdiixs1 12944
lob reads 0
LOB table id lookup cache misses 0
lob writes 0
lob writes unaligned 0
logical read bytes from cache -517775360
logons cumulative 0
logons current 0
messages sent 0
no buffer to keep pinned count 10
no work - consistent read gets 982086
non-idle wait count 6
non-idle wait time 0
Number of read IOs issued 0
opened cursors cumulative 4
opened cursors current 1
OS Involuntary context switches 853
OS Maximum resident set size 0
OS Page faults 0
OS Page reclaims 2453
OS System time used 9
OS User time used 3549
OS Voluntary context switches 238
parse count (failures) 0
parse count (hard) 0
parse count (total) 1
parse time cpu 0
parse time elapsed 0
physical read bytes 0
physical read IO requests 0
physical read total bytes 0
physical read total IO requests 0
physical read total multi block requests 0
physical reads 0
physical reads cache 0
physical reads cache prefetch 0
physical reads direct 0
physical reads direct (lob) 0
physical write bytes 0
physical write IO requests 0
physical write total bytes 0
physical write total IO requests 0
physical writes 0
physical writes direct 0
physical writes direct (lob) 0
physical writes non checkpoint 0
pinned buffers inspected 0
pinned cursors current 0
process last non-idle time 0
recursive calls 0
recursive cpu usage 0
redo entries 0
redo size 0
redo size for direct writes 0
redo subscn max counts 0
redo synch time 0
redo synch time (usec) 0
redo synch writes 0
Requests to/from client 3
rollbacks only - consistent read gets 0
RowCR - row contention 0
RowCR attempts 0
rows fetched via callback 0
session connect time 0
session cursor cache count 1
session cursor cache hits 3
session logical reads 985371
session pga memory 131072
session pga memory max 0
session uga memory 392928
session uga memory max 0
shared hash latch upgrades - no wait 284
shared hash latch upgrades - wait 0
sorts (memory) 3
sorts (rows) 243
sql area evicted 0
sql area purged 0
SQL*Net roundtrips to/from client 4
switch current to new buffer 0
table fetch by rowid 1861456
table fetch continued row 9
table scan blocks gotten 0
table scan rows gotten 0
table scans (short tables) 0
temp space allocated (bytes) 0
undo change vector size 0
user calls 7
user commits 0
user I/O wait time 0
workarea executions - optimal 10
workarea memory allocated 342
OLD DB Auto trace (Fast)
active txn count during cleanout 0
buffer is not pinned count 4
buffer is pinned count 101
bytes received via SQL*Net from client 1322
bytes sent via SQL*Net to client 9560
calls to get snapshot scn: kcmgss 15
calls to kcmgas 0
calls to kcmgcs 0
calls to kcmgrs 1
cleanout - number of ktugct calls 0
cluster key scan block gets 0
cluster key scans 0
commit cleanouts 0
commit cleanouts successfully completed 0
concurrency wait time 0
consistent changes 0
consistent gets 117149
consistent gets - examination 56
consistent gets direct 115301
consistent gets from cache 1848
consistent gets from cache (fastpath) 1792
CPU used by this session 118
CPU used when call started 119
cursor authentications 1
db block changes 0
db block gets 0
db block gets from cache 0
db block gets from cache (fastpath) 0
DB time 123
deferred (CURRENT) block cleanout applications 0
Effective IO time 2012
enqueue conversions 3
enqueue releases 2
enqueue requests 2
enqueue waits 1
execute count 2
free buffer requested 0
HSC Heap Segment Block Changes 0
IMU Flushes 0
IMU ktichg flush 0
index fast full scans (full) 0
index fetch by key 101
index scans kdiixs1 0
lob writes 0
lob writes unaligned 0
logons cumulative 0
logons current 0
messages sent 0
no work - consistent read gets 117080
Number of read IOs issued 1019
opened cursors cumulative 3
opened cursors current 1
OS Involuntary context switches 54
OS Maximum resident set size 7868
OS Page faults 12
OS Page reclaims 2911
OS System time used 57
OS User time used 71
OS Voluntary context switches 25
parse count (failures) 0
parse count (hard) 0
parse count (total) 3
parse time cpu 0
parse time elapsed 0
physical read bytes 944545792
physical read IO requests 1019
physical read total bytes 944545792
physical read total IO requests 1019
physical read total multi block requests 905
physical reads 115301
physical reads cache 0
physical reads cache prefetch 0
physical reads direct 115301
physical reads prefetch warmup 0
process last non-idle time 0
recursive calls 0
recursive cpu usage 0
redo entries 0
redo size 0
redo synch writes 0
rows fetched via callback 0
session connect time 0
session cursor cache count 1
session cursor cache hits 2
session logical reads 117149
session pga memory -983040
session pga memory max 0
session uga memory 0
session uga memory max 0
shared hash latch upgrades - no wait 0
sorts (memory) 2
sorts (rows) 157
sql area purged 0
SQL*Net roundtrips to/from client 3
table fetch by rowid 0
table fetch continued row 0
table scan blocks gotten 117077
table scan rows gotten 1972604
table scans (direct read) 1
table scans (long tables) 1
table scans (short tables) 2
undo change vector size 0
user calls 5
user I/O wait time 0
workarea executions - optimal 4Hi Srini,
Yes the stats on the tables and indexes are current in both DBs. However the NEW DB has "System Stats" in sys.aux_stats$ and the OLD DB does not. The old DB has optimizer_index_caching=0 and optimizer_index_cost_adj=100. The new DB as them at optimizer_index_caching=90 and optimizer_index_cost_adj=25 but should not be using them because of the "System Stats".
Also I thought none of the SQL Optimize stuff would matter because I forced in my own SQL Plan using SPM.
Differences in init.ora
OLD-11 optimizerpush_pred_cost_based = FALSE
NEW-15 audit_sys_operations = FALSE
audit_trail = "DB, EXTENDED"
awr_snapshot_time_offset = 0
OLD-16 audit_sys_operations = TRUE
audit_trail = "XML, EXTENDED"
NEW-22 cell_offload_compaction = "ADAPTIVE"
cell_offload_decryption = TRUE
cell_offload_plan_display = "AUTO"
cell_offload_processing = TRUE
NEW-28 clonedb = FALSE
NEW-32 compatible = "11.2.0.0.0"
OLD-27 compatible = "11.1.0.0.0"
NEW-37 cursor_bind_capture_destination = "memory+disk"
cursor_sharing = "FORCE"
OLD-32 cursor_sharing = "EXACT"
NEW-50 db_cache_size = 4294967296
db_domain = "my.com"
OLD-44 db_cache_size = 0
NEW-54 db_flash_cache_size = 0
NEW-58 db_name = "NEWDB"
db_recovery_file_dest_size = 214748364800
OLD-50 db_name = "OLDDB"
db_recovery_file_dest_size = 8438939648
NEW-63 db_unique_name = "NEWDB"
db_unrecoverable_scn_tracking = TRUE
db_writer_processes = 2
OLD-55 db_unique_name = "OLDDB"
db_writer_processes = 1
NEW-68 deferred_segment_creation = TRUE
NEW-71 dispatchers = "(PROTOCOL=TCP) (SERVICE=NEWDBXDB)"
OLD-61 dispatchers = "(PROTOCOL=TCP) (SERVICE=OLDDBXDB)"
NEW-73 dml_locks = 5068
dst_upgrade_insert_conv = TRUE
OLD-63 dml_locks = 3652
drs_start = FALSE
NEW-80 filesystemio_options = "SETALL"
OLD-70 filesystemio_options = "none"
NEW-87 instance_name = "NEWDB"
OLD-77 instance_name = "OLDDB"
NEW-94 job_queue_processes = 1000
OLD-84 job_queue_processes = 100
NEW-104 log_archive_dest_state_11 = "enable"
log_archive_dest_state_12 = "enable"
log_archive_dest_state_13 = "enable"
log_archive_dest_state_14 = "enable"
log_archive_dest_state_15 = "enable"
log_archive_dest_state_16 = "enable"
log_archive_dest_state_17 = "enable"
log_archive_dest_state_18 = "enable"
log_archive_dest_state_19 = "enable"
NEW-114 log_archive_dest_state_20 = "enable"
log_archive_dest_state_21 = "enable"
log_archive_dest_state_22 = "enable"
log_archive_dest_state_23 = "enable"
log_archive_dest_state_24 = "enable"
log_archive_dest_state_25 = "enable"
log_archive_dest_state_26 = "enable"
log_archive_dest_state_27 = "enable"
log_archive_dest_state_28 = "enable"
log_archive_dest_state_29 = "enable"
NEW-125 log_archive_dest_state_30 = "enable"
log_archive_dest_state_31 = "enable"
NEW-139 log_buffer = 7012352
OLD-108 log_buffer = 34412032
OLD-112 max_commit_propagation_delay = 0
NEW-144 max_enabled_roles = 150
memory_max_target = 12884901888
memory_target = 8589934592
nls_calendar = "GREGORIAN"
OLD-114 max_enabled_roles = 140
memory_max_target = 6576668672
memory_target = 6576668672
NEW-149 nls_currency = "$"
nls_date_format = "DD-MON-RR"
nls_date_language = "AMERICAN"
nls_dual_currency = "$"
nls_iso_currency = "AMERICA"
NEW-157 nls_numeric_characters = ".,"
nls_sort = "BINARY"
NEW-160 nls_time_format = "HH.MI.SSXFF AM"
nls_time_tz_format = "HH.MI.SSXFF AM TZR"
nls_timestamp_format = "DD-MON-RR HH.MI.SSXFF AM"
nls_timestamp_tz_format = "DD-MON-RR HH.MI.SSXFF AM TZR"
NEW-172 optimizer_features_enable = "11.2.0.3"
optimizer_index_caching = 90
optimizer_index_cost_adj = 25
OLD-130 optimizer_features_enable = "11.1.0.6"
optimizer_index_caching = 0
optimizer_index_cost_adj = 100
NEW-184 parallel_degree_limit = "CPU"
parallel_degree_policy = "MANUAL"
parallel_execution_message_size = 16384
parallel_force_local = FALSE
OLD-142 parallel_execution_message_size = 2152
NEW-189 parallel_max_servers = 320
OLD-144 parallel_max_servers = 0
NEW-192 parallel_min_time_threshold = "AUTO"
NEW-195 parallel_servers_target = 128
NEW-197 permit_92_wrap_format = TRUE
OLD-154 plsql_native_library_subdir_count = 0
NEW-220 result_cache_max_size = 21495808
OLD-173 result_cache_max_size = 0
NEW-230 service_names = "NEWDB, NEWDB.my.com, NEW"
OLD-183 service_names = "OLDDB, OLD.my.com"
NEW-233 sessions = 1152
sga_max_size = 12884901888
OLD-186 sessions = 830
sga_max_size = 6576668672
NEW-238 shared_pool_reserved_size = 35232153
OLD-191 shared_pool_reserved_size = 53687091
OLD-199 sql_version = "NATIVE"
NEW-248 star_transformation_enabled = "TRUE"
OLD-202 star_transformation_enabled = "FALSE"
NEW-253 timed_os_statistics = 60
OLD-207 timed_os_statistics = 5
NEW-256 transactions = 1267
OLD-210 transactions = 913
NEW-262 use_large_pages = "TRUE" -
Database Performace Is Very Poor On IBM AIX Compared To Windows NT
Hi,
Recently we have migrated Our Oracle 10g DataBase from Windows NT to IBM AIX Box. Unfortunately, the Database Performance is gone down when compared to Windows NT environment. Since been a week we are working to pick the problem. We have altered the init.ora parameters to see the database behaviour., But there no Improvement is been observerd.
Below are the Init.Ora Parameters ,
Name Value Description
tracefile_identifier null trace file custom identifier
lock_name_space null lock name space used for generating lock names for standby/clone database
processes 395 user processes
sessions 439 user and system sessions
timed_statistics TRUE maintain internal timing statistics
timed_os_statistics 0 internal os statistic gathering interval in seconds
resource_limit TRUE master switch for resource limit
license_max_sessions 0 maximum number of non-system user sessions allowed
license_sessions_warning 0 warning level for number of non-system user sessions
cpu_count 16 number of CPUs for this instance
instance_groups null list of instance group names
event null debug event control - default null string
sga_max_size 15032385536 max total SGA size
pre_page_sga FALSE pre-page sga for process
shared_memory_address 0 SGA starting address (low order 32-bits on 64-bit platforms)
hi_shared_memory_address 0 SGA starting address (high order 32-bits on 64-bit platforms)
use_indirect_data_buffers FALSE Enable indirect data buffers (very large SGA on 32-bit platforms)
lock_sga TRUE Lock entire SGA in physical memory
shared_pool_size 0 size in bytes of shared pool
large_pool_size 0 size in bytes of large pool
java_pool_size 0 size in bytes of java pool
streams_pool_size 50331648 size in bytes of the streams pool
shared_pool_reserved_size 84724940 size in bytes of reserved area of shared pool
java_soft_sessionspace_limit 0 warning limit on size in bytes of a Java sessionspace
java_max_sessionspace_size 0 max allowed size in bytes of a Java sessionspace
spfile /oracle/app/product/10.2.0.3.0/dbs/spfileCALMDB.ora server parameter file
instance_type RDBMS type of instance to be executed
trace_enabled FALSE enable KST tracing
nls_language AMERICAN NLS language name
nls_territory AMERICA NLS territory name
nls_sort null NLS linguistic definition name
nls_date_language null NLS date language name
nls_date_format null NLS Oracle date format
nls_currency null NLS local currency symbol
nls_numeric_characters null NLS numeric characters
nls_iso_currency null NLS ISO currency territory name
nls_calendar null NLS calendar system name
nls_time_format null time format
nls_timestamp_format null time stamp format
nls_time_tz_format null time with timezone format
nls_timestamp_tz_format null timestampe with timezone format
nls_dual_currency null Dual currency symbol
nls_comp null NLS comparison
nls_length_semantics BYTE create columns using byte or char semantics by default
nls_nchar_conv_excp FALSE NLS raise an exception instead of allowing implicit conversion
fileio_network_adapters null Network Adapters for File I/O
filesystemio_options asynch IO operations on filesystem files
disk_asynch_io FALSE Use asynch I/O for random access devices
tape_asynch_io TRUE Use asynch I/O requests for tape devices
dbwr_io_slaves 0 DBWR I/O slaves
backup_tape_io_slaves FALSE BACKUP Tape I/O slaves
resource_manager_plan null resource mgr top plan
cluster_interconnects null interconnects for RAC use
file_mapping FALSE enable file mapping
gcs_server_processes 0 number of background gcs server processes to start
active_instance_count null number of active instances in the cluster database
sga_target 15032385536 Target size of SGA
control_files /oradata10/oradata/CALMDB/control/CONTROL02.CTL control file names list
db_file_name_convert null datafile name convert patterns and strings for standby/clone db
log_file_name_convert null logfile name convert patterns and strings for standby/clone db
control_file_record_keep_time 0 control file record keep time in days
db_block_buffers 0 Number of database blocks cached in memory
db_block_checksum TRUE store checksum in db blocks and check during reads
db_block_size 8192 Size of database block in bytes
db_cache_size 2147483648 Size of DEFAULT buffer pool for standard block size buffers
db_2k_cache_size 0 Size of cache for 2K buffers
db_4k_cache_size 0 Size of cache for 4K buffers
db_8k_cache_size 0 Size of cache for 8K buffers
db_16k_cache_size 0 Size of cache for 16K buffers
db_32k_cache_size 0 Size of cache for 32K buffers
db_keep_cache_size 0 Size of KEEP buffer pool for standard block size buffers
db_recycle_cache_size 0 Size of RECYCLE buffer pool for standard block size buffers
db_writer_processes 6 number of background database writer processes to start
buffer_pool_keep null Number of database blocks/latches in keep buffer pool
buffer_pool_recycle null Number of database blocks/latches in recycle buffer pool
db_cache_advice ON Buffer cache sizing advisory
max_commit_propagation_delay 0 Max age of new snapshot in .01 seconds
compatible 10.2.0.3.0 Database will be completely compatible with this software version
remote_archive_enable TRUE remote archival enable setting
log_archive_config null log archive config parameter
log_archive_start FALSE start archival process on SGA initialization
log_archive_dest null archival destination text string
log_archive_duplex_dest null duplex archival destination text string
log_archive_dest_1 null archival destination #1 text string
log_archive_dest_2 null archival destination #2 text string
log_archive_dest_3 null archival destination #3 text string
log_archive_dest_4 null archival destination #4 text string
log_archive_dest_5 null archival destination #5 text string
log_archive_dest_6 null archival destination #6 text string
log_archive_dest_7 null archival destination #7 text string
log_archive_dest_8 null archival destination #8 text string
log_archive_dest_9 null archival destination #9 text string
log_archive_dest_10 null archival destination #10 text string
log_archive_dest_state_1 enable archival destination #1 state text string
log_archive_dest_state_2 enable archival destination #2 state text string
log_archive_dest_state_3 enable archival destination #3 state text string
log_archive_dest_state_4 enable archival destination #4 state text string
log_archive_dest_state_5 enable archival destination #5 state text string
log_archive_dest_state_6 enable archival destination #6 state text string
log_archive_dest_state_7 enable archival destination #7 state text string
log_archive_dest_state_8 enable archival destination #8 state text string
log_archive_dest_state_9 enable archival destination #9 state text string
log_archive_dest_state_10 enable archival destination #10 state text string
log_archive_max_processes 2 maximum number of active ARCH processes
log_archive_min_succeed_dest 1 minimum number of archive destinations that must succeed
standby_archive_dest ?/dbs/arch standby database archivelog destination text string
log_archive_trace 0 Establish archivelog operation tracing level
log_archive_local_first TRUE Establish EXPEDITE attribute default value
log_archive_format %t_%s_%r.dbf archival destination format
fal_client null FAL client
fal_server null FAL server list
log_buffer 176918528 redo circular buffer size
log_checkpoint_interval 0 # redo blocks checkpoint threshold
log_checkpoint_timeout 0 Maximum time interval between checkpoints in seconds
archive_lag_target 0 Maximum number of seconds of redos the standby could lose
db_files 200 max allowable # db files
db_file_multiblock_read_count 128 db block to be read each IO
read_only_open_delayed FALSE if TRUE delay opening of read only files until first access
cluster_database FALSE if TRUE startup in cluster database mode
parallel_server FALSE if TRUE startup in parallel server mode
parallel_server_instances 1 number of instances to use for sizing OPS SGA structures
cluster_database_instances 1 number of instances to use for sizing cluster db SGA structures
db_create_file_dest null default database location
db_create_online_log_dest_1 null online log/controlfile destination #1
db_create_online_log_dest_2 null online log/controlfile destination #2
db_create_online_log_dest_3 null online log/controlfile destination #3
db_create_online_log_dest_4 null online log/controlfile destination #4
db_create_online_log_dest_5 null online log/controlfile destination #5
db_recovery_file_dest null default database recovery file location
db_recovery_file_dest_size 0 database recovery files size limit
standby_file_management MANUAL if auto then files are created/dropped automatically on standby
gc_files_to_locks null mapping between file numbers and global cache locks
thread 0 Redo thread to mount
fast_start_io_target 0 Upper bound on recovery reads
fast_start_mttr_target 0 MTTR target of forward crash recovery in seconds
log_checkpoints_to_alert FALSE log checkpoint begin/end to alert file
recovery_parallelism 0 number of server processes to use for parallel recovery
logmnr_max_persistent_sessions 1 maximum number of threads to mine
db_flashback_retention_target 1440 Maximum Flashback Database log retention time in minutes.
dml_locks 1000 dml locks - one for each table modified in a transaction
ddl_wait_for_locks FALSE Disable NOWAIT DML lock acquisitions
replication_dependency_tracking TRUE tracking dependency for Replication parallel propagation
instance_number 0 instance number
transactions 482 max. number of concurrent active transactions
transactions_per_rollback_segment 5 number of active transactions per rollback segment
rollback_segments null undo segment list
undo_management AUTO instance runs in SMU mode if TRUE, else in RBU mode
undo_tablespace UNDOTBS1 use/switch undo tablespace
undo_retention 10800 undo retention in seconds
fast_start_parallel_rollback LOW max number of parallel recovery slaves that may be used
resumable_timeout 0 set resumable_timeout
db_block_checking FALSE header checking and data and index block checking
recyclebin off recyclebin processing
create_stored_outlines null create stored outlines for DML statements
serial_reuse disable reuse the frame segments
ldap_directory_access NONE RDBMS's LDAP access option
os_roles FALSE retrieve roles from the operating system
rdbms_server_dn null RDBMS's Distinguished Name
max_enabled_roles 150 max number of roles a user can have enabled
remote_os_authent FALSE allow non-secure remote clients to use auto-logon accounts
remote_os_roles FALSE allow non-secure remote clients to use os roles
O7_DICTIONARY_ACCESSIBILITY FALSE Version 7 Dictionary Accessibility Support
remote_login_passwordfile NONE password file usage parameter
license_max_users 0 maximum number of named users that can be created in the database
audit_sys_operations TRUE enable sys auditing
global_context_pool_size null Global Application Context Pool Size in Bytes
db_domain null directory part of global database name stored with CREATE DATABASE
global_names TRUE enforce that database links have same name as remote database
distributed_lock_timeout 60 number of seconds a distributed transaction waits for a lock
commit_point_strength 1 Bias this node has toward not preparing in a two-phase commit
instance_name CALMDB instance name supported by the instance
service_names CALMDB service names supported by the instance
dispatchers (PROTOCOL=TCP) (SERVICE=CALMDB) specifications of dispatchers
shared_servers 1 number of shared servers to start up
max_shared_servers null max number of shared servers
max_dispatchers null max number of dispatchers
circuits null max number of circuits
shared_server_sessions null max number of shared server sessions
local_listener null local listener
remote_listener null remote listener
cursor_space_for_time FALSE use more memory in order to get faster execution
session_cached_cursors 200 Number of cursors to cache in a session.
remote_dependencies_mode TIMESTAMP remote-procedure-call dependencies mode parameter
utl_file_dir null utl_file accessible directories list
smtp_out_server null utl_smtp server and port configuration parameter
plsql_v2_compatibility FALSE PL/SQL version 2.x compatibility flag
plsql_compiler_flags INTERPRETED, NON_DEBUG PL/SQL compiler flags
plsql_native_library_dir null plsql native library dir
plsql_native_library_subdir_count 0 plsql native library number of subdirectories
plsql_warnings DISABLE:ALL PL/SQL compiler warnings settings
plsql_code_type INTERPRETED PL/SQL code-type
plsql_debug FALSE PL/SQL debug
plsql_optimize_level 2 PL/SQL optimize level
plsql_ccflags null PL/SQL ccflags
job_queue_processes 10 number of job queue slave processes
parallel_min_percent 0 minimum percent of threads required for parallel query
create_bitmap_area_size 8388608 size of create bitmap buffer for bitmap index
bitmap_merge_area_size 1048576 maximum memory allow for BITMAP MERGE
cursor_sharing FORCE cursor sharing mode
parallel_min_servers 10 minimum parallel query servers per instance
parallel_max_servers 320 maximum parallel query servers per instance
parallel_instance_group null instance group to use for all parallel operations
parallel_execution_message_size 4096 message buffer size for parallel execution
hash_area_size 62914560 size of in-memory hash work area
shadow_core_dump partial Core Size for Shadow Processes
background_core_dump partial Core Size for Background Processes
background_dump_dest /oradata28/oradata/CALMDB/bdump Detached process dump directory
user_dump_dest /oradata28/oradata/CALMDB/udump User process dump directory
max_dump_file_size 10M Maximum size (blocks) of dump file
core_dump_dest /oradata28/oradata/CALMDB/cdump Core dump directory
use_sigio TRUE Use SIGIO signal
audit_file_dest /oracle/app/product/10.2.0.3.0/rdbms/audit Directory in which auditing files are to reside
audit_syslog_level null Syslog facility and level
object_cache_optimal_size 102400 optimal size of the user session's object cache in bytes
object_cache_max_size_percent 10 percentage of maximum size over optimal of the user session's object cache
session_max_open_files 20 maximum number of open files allowed per session
open_links 4 max # open links per session
open_links_per_instance 4 max # open links per instance
commit_write null transaction commit log write behaviour
optimizer_features_enable 10.2.0.3 optimizer plan compatibility parameter
fixed_date null fixed SYSDATE value
audit_trail DB enable system auditing
sort_area_size 31457280 size of in-memory sort work area
sort_area_retained_size 3145728 size of in-memory sort work area retained between fetch calls
db_name TESTDB database name specified in CREATE DATABASE
db_unique_name TESTDB Database Unique Name
open_cursors 2000 max # cursors per session
ifile null include file in init.ora
sql_trace FALSE enable SQL trace
os_authent_prefix ops$ prefix for auto-logon accounts
optimizer_mode ALL_ROWS optimizer mode
sql92_security FALSE require select privilege for searched update/delete
blank_trimming FALSE blank trimming semantics parameter
star_transformation_enabled FALSE enable the use of star transformation
parallel_adaptive_multi_user TRUE enable adaptive setting of degree for multiple user streams
parallel_threads_per_cpu 2 number of parallel execution threads per CPU
parallel_automatic_tuning TRUE enable intelligent defaults for parallel execution parameters
optimizer_index_cost_adj 250 optimizer index cost adjustment
optimizer_index_caching 0 optimizer percent index caching
query_rewrite_enabled TRUE allow rewrite of queries using materialized views if enabled
query_rewrite_integrity enforced perform rewrite using materialized views with desired integrity
sql_version NATIVE sql language version parameter for compatibility issues
pga_aggregate_target 3221225472 Target size for the aggregate PGA memory consumed by the instance
workarea_size_policy AUTO policy used to size SQL working areas (MANUAL/AUTO)
optimizer_dynamic_sampling 2 optimizer dynamic sampling
statistics_level TYPICAL statistics level
skip_unusable_indexes TRUE skip unusable indexes if set to TRUE
optimizer_secure_view_merging TRUE optimizer secure view merging and predicate pushdown/movearound
aq_tm_processes 1 number of AQ Time Managers to start
hs_autoregister TRUE enable automatic server DD updates in HS agent self-registration
dg_broker_start FALSE start Data Guard broker framework (DMON process)
drs_start FALSE start DG Broker monitor (DMON process)
dg_broker_config_file1 /oracle/app/product/10.2.0.3.0/dbs/dr1CALMDB.dat data guard broker configuration file #1
dg_broker_config_file2 /oracle/app/product/10.2.0.3.0/dbs/dr2CALMDB.dat data guard broker configuration file #2
olap_page_pool_size 0 size of the olap page pool in bytes
asm_diskstring null disk set locations for discovery
asm_diskgroups null disk groups to mount automatically
asm_power_limit 1 number of processes for disk rebalancing
sqltune_category DEFAULT Category qualifier for applying hintsets pls suggest
Thanks
KrWe have examined the AWR Reports, That shows ,
Snap Id Snap Time Sessions Cursors/Session
Begin Snap: 1074 27-Jul-09 13:00:03 147 16.7
End Snap: 1075 27-Jul-09 14:01:00 150 22.3
Elapsed: 60.96 (mins)
DB Time: 9.63 (mins)
Report Summary
Cache Sizes
Begin End
Buffer Cache: 12,368M 12,368M Std Block Size: 8K
Shared Pool Size: 1,696M 1,696M Log Buffer: 178,172K
Load Profile
Per Second Per Transaction
Redo size: 12,787.87 24,786.41
Logical reads: 7,409.85 14,362.33
Block changes: 61.17 118.57
Physical reads: 0.51 0.98
Physical writes: 4.08 7.90
User calls: 60.11 116.50
Parses: 19.38 37.56
Hard parses: 0.36 0.69
Sorts: 7.87 15.25
Logons: 0.07 0.14
Executes: 50.34 97.57
Transactions: 0.52
% Blocks changed per Read: 0.83 Recursive Call %: 74.53
Rollback per transaction %: 3.29 Rows per Sort: 292.67
Instance Efficiency Percentages (Target 100%)
Buffer Nowait %: 100.00 Redo NoWait %: 100.00
Buffer Hit %: 99.99 In-memory Sort %: 100.00
Library Hit %: 98.40 Soft Parse %: 98.15
Execute to Parse %: 61.51 Latch Hit %: 99.96
Parse CPU to Parse Elapsd %: 24.44 % Non-Parse CPU: 98.99
Shared Pool Statistics
Begin End
Memory Usage %: 72.35 72.86
% SQL with executions>1: 98.69 96.86
% Memory for SQL w/exec>1: 96.72 87.64
Top 5 Timed Events
Event Waits Time(s) Avg Wait(ms) % Total Call Time Wait Class
CPU time 535 92.5
db file parallel write 596 106 177 18.3 System I/O
log file parallel write 3,844 40 10 6.9 System I/O
control file parallel write 1,689 29 17 5.0 System I/O
log file sync 2,357 29 12 5.0 Commit
Time Model Statistics
Total time in database user-calls (DB Time): 578s
Statistics including the word "background" measure background process time, and so do not contribute to the DB time statistic
Ordered by % or DB time desc, Statistic name
Statistic Name Time (s) % of DB Time
sql execute elapsed time 560.61 96.99
DB CPU 534.91 92.55
parse time elapsed 24.16 4.18
hard parse elapsed time 17.90 3.10
PL/SQL execution elapsed time 7.65 1.32
connection management call elapsed time 0.89 0.15
repeated bind elapsed time 0.49 0.08
hard parse (sharing criteria) elapsed time 0.28 0.05
sequence load elapsed time 0.05 0.01
PL/SQL compilation elapsed time 0.03 0.00
failed parse elapsed time 0.02 0.00
hard parse (bind mismatch) elapsed time 0.00 0.00
DB time 577.98
background elapsed time 190.39
background cpu time 15.49
Wait Class
s - second
cs - centisecond - 100th of a second
ms - millisecond - 1000th of a second
us - microsecond - 1000000th of a second
ordered by wait time desc, waits desc
Wait Class Waits %Time -outs Total Wait Time (s) Avg wait (ms) Waits /txn
System I/O 8,117 0.00 175 22 4.30
Commit 2,357 0.00 29 12 1.25
Network 226,127 0.00 7 0 119.83
User I/O 1,004 0.00 4 4 0.53
Application 91 0.00 2 27 0.05
Other 269 0.00 1 4 0.14
Concurrency 32 0.00 0 7 0.02
Configuration 59 0.00 0 3 0.03
Wait Events
s - second
cs - centisecond - 100th of a second
ms - millisecond - 1000th of a second
us - microsecond - 1000000th of a second
ordered by wait time desc, waits desc (idle events last)
Event Waits %Time -outs Total Wait Time (s) Avg wait (ms) Waits /txn
db file parallel write 596 0.00 106 177 0.32
log file parallel write 3,844 0.00 40 10 2.04
control file parallel write 1,689 0.00 29 17 0.90
log file sync 2,357 0.00 29 12 1.25
SQL*Net more data from client 4,197 0.00 7 2 2.22
db file sequential read 689 0.00 4 5 0.37
enq: RO - fast object reuse 32 0.00 2 50 0.02
rdbms ipc reply 32 0.00 1 34 0.02
db file scattered read 289 0.00 1 2 0.15
enq: KO - fast object checkpoint 47 0.00 1 14 0.02
control file sequential read 1,988 0.00 0 0 1.05
SQL*Net message to client 218,154 0.00 0 0 115.61
os thread startup 6 0.00 0 34 0.00
SQL*Net break/reset to client 12 0.00 0 15 0.01
log buffer space 59 0.00 0 3 0.03
latch free 10 0.00 0 8 0.01
SQL*Net more data to client 3,776 0.00 0 0 2.00
latch: shared pool 5 0.00 0 5 0.00
reliable message 79 0.00 0 0 0.04
LGWR wait for redo copy 148 0.00 0 0 0.08
buffer busy waits 19 0.00 0 0 0.01
direct path write temp 24 0.00 0 0 0.01
latch: cache buffers chains 2 0.00 0 0 0.00
direct path write 2 0.00 0 0 0.00
SQL*Net message from client 218,149 0.00 136,803 627 115.61
PX Idle Wait 18,013 100.06 35,184 1953 9.55
virtual circuit status 67,690 0.01 3,825 57 35.87
Streams AQ: qmn slave idle wait 130 0.00 3,563 27404 0.07
Streams AQ: qmn coordinator idle wait 264 50.76 3,563 13494 0.14
class slave wait 3 0.00 0 0 0.00
Back to Wait Events Statistics
Back to Top
Background Wait Events
ordered by wait time desc, waits desc (idle events last)
Event Waits %Time -outs Total Wait Time (s) Avg wait (ms) Waits /txn
db file parallel write 596 0.00 106 177 0.32
log file parallel write 3,843 0.00 40 10 2.04
control file parallel write 1,689 0.00 29 17 0.90
os thread startup 6 0.00 0 34 0.00
log buffer space 59 0.00 0 3 0.03
control file sequential read 474 0.00 0 0 0.25
log file sync 1 0.00 0 11 0.00
events in waitclass Other 148 0.00 0 0 0.08
rdbms ipc message 32,384 54.67 49,367 1524 17.16
pmon timer 1,265 100.00 3,568 2821 0.67
Streams AQ: qmn slave idle wait 130 0.00 3,563 27404 0.07
Streams AQ: qmn coordinator idle wait 264 50.76 3,563 13494 0.14
smon timer 63 11.11 3,493 55447 0.03
SQL ordered by Gets
Resources reported for PL/SQL code includes the resources used by all SQL statements called by the code.
Total Buffer Gets: 27,101,711
Captured SQL account for 81.1% of Total
Buffer Gets Executions Gets per Exec %Total CPU Time (s) Elapsed Time (s) SQL Id SQL Module SQL Text
11,889,257 3 3,963,085.67 43.87 145.36 149.62 8hr7mrcqpvw7n Begin Pkg_Pg_consolidation.Pro...
5,877,417 17,784 330.49 21.69 59.94 62.30 3mw7tf64wzgv4 SELECT TOTALVOL.PERIOD_NUMBER ...
5,877,303 17,784 330.48 21.69 62.01 63.54 g3vhvg8cz6yu3 SELECT TOTALVOL.PERIOD_NUMBER ...
3,423,336 0 12.63 200.67 200.67 6jrnq2ua8cjnq SELECT ROWNUM , first , sec...
2,810,100 2,465 1,140.00 10.37 19.29 19.29 7f4y1a3k1tzjn SELECT /*+CLUSTER(VA_STATIC_CC...
1,529,253 230 6,648.93 5.64 15.92 16.97 6trp3txn7rh1q SELECT /*+ index(va_gap_irlc_P...
1,523,043 230 6,621.93 5.62 16.22 17.18 3fu81ar131nj9 SELECT /*+ index(va_gap_irla_P...
855,620 358 2,390.00 3.16 11.49 13.31 a3g12c11x7yd0 SELECT FX_DATE, FX_RATE, CCY...
689,979 708 974.55 2.55 4.37 4.43 b7znr5szwjrtx SELECT /*+RULE*/ YIELD_CURVE_C...
603,631 2,110 286.08 2.23 11.03 13.40 3c2gyz9fhswxx SELECT ASSET_LIABILITY_GAP, AL...
554,080 5 110,816.00 2.04 2.37 2.44 9w1b11p6baqat SELECT DISTINCT consolidation_...
318,378 624 510.22 1.17 3.20 3.45 1auhbw1rd5yn2 SELECT /*+ index(va_gap_irla_P...
318,378 624 510.22 1.17 3.19 3.42 6gq9rj96p9aq0 SELECT /*+ index(va_gap_irlc_P...
313,923 3 104,641.00 1.16 2.38 2.38 7vsznt4tvh1b5 ...
SQL ordered by Reads
Total Disk Reads: 1,857
Captured SQL account for 2.1% of Total
Physical Reads Executions Reads per Exec %Total CPU Time (s) Elapsed Time (s) SQL Id SQL Module SQL Text
57 36 1.58 3.07 3.55 5.81 c6vdhsbw1t03d BEGIN citidba.proc_analyze_tab...
32 507 0.06 1.72 0.22 0.40 c49tbx3qqrtm4 insert into dependency$(d_obj#...
28 8 3.50 1.51 0.76 3.02 4crh3z5ya2r27 BEGIN PROC_DELETE_PACK_TABLES(...
20 3 6.67 1.08 145.36 149.62 8hr7mrcqpvw7n Begin Pkg_Pg_consolidation.Pro...
10 1 10.00 0.54 6.21 18.11 4m9ts1b1b27sv BEGIN domain.create_tables(:1,...
7 23 0.30 0.38 1.56 2.22 4vw03w673b9k7 BEGIN PROC_CREATE_PACK_TABLES(...
4 4 1.00 0.22 0.29 1.06 1vw6carbvp4z0 BEGIN Proc_ReCreate_Gap_temp_t...
2 182 0.01 0.11 0.06 0.08 2h0gb24h6zpnu insert into access$(d_obj#, or...
2 596 0.00 0.11 0.26 0.29 5fbmafvm27kfm insert into obj$(owner#, name,...
1 1 1.00 0.05 0.01 0.02 7jsrvff8hnqft UPDATE VA_PRR_IRUT_POL_IBCB_R...
SQL ordered by Executions
Total Executions: 184,109
Captured SQL account for 71.6% of Total
Executions Rows Processed Rows per Exec CPU per Exec (s) Elap per Exec (s) SQL Id SQL Module SQL Text
43,255 43,255 1.00 0.00 0.00 4m94ckmu16f9k JDBC Thin Client select count(*) from dual
25,964 24,769 0.95 0.00 0.00 2kxdq3m953pst SELECT SURROGATE_KEY FROM TB_P...
17,784 54,585 3.07 0.00 0.00 3mw7tf64wzgv4 SELECT TOTALVOL.PERIOD_NUMBER ...
17,784 54,585 3.07 0.00 0.00 g3vhvg8cz6yu3 SELECT TOTALVOL.PERIOD_NUMBER ...
2,631 2,631 1.00 0.00 0.00 60uw2vh6q9vn2 insert into col$(obj#, name, i...
2,465 924,375 375.00 0.01 0.01 7f4y1a3k1tzjn SELECT /*+CLUSTER(VA_STATIC_CC...
2,202 36 0.02 0.00 0.00 96g93hntrzjtr select /*+ rule */ bucket_cnt,...
2,110 206,464 97.85 0.01 0.01 3c2gyz9fhswxx SELECT ASSET_LIABILITY_GAP, AL...
2,043 2,043 1.00 0.00 0.00 28dvpph9k610y SELECT COUNT(*) FROM TB_TECH_S...
842 35 0.04 0.00 0.00 04xtrk7uyhknh select obj#, type#, ctime, mti...
SQL ordered by Parse Calls
Total Parse Calls: 70,872
Captured SQL account for 69.7% of Total
Parse Calls Executions % Total Parses SQL Id SQL Module SQL Text
17,784 17,784 25.09 3mw7tf64wzgv4 SELECT TOTALVOL.PERIOD_NUMBER ...
17,784 17,784 25.09 g3vhvg8cz6yu3 SELECT TOTALVOL.PERIOD_NUMBER ...
2,110 2,110 2.98 3c2gyz9fhswxx SELECT ASSET_LIABILITY_GAP, AL...
786 786 1.11 2s6amyv4qz2h2 exp@PSLDB03 (TNS V1-V3) SELECT INIEXT, SEXT, MINEXT,...
596 596 0.84 5fbmafvm27kfm insert into obj$(owner#, name,...
590 590 0.83 2ym6hhaq30r73 select type#, blocks, extents,...
550 550 0.78 7gtztzv329wg0 select c.name, u.name from co...
512 512 0.72 9qgtwh66xg6nz update seg$ set type#=:4, bloc...
480 480 0.68 6x2cz59yrxz3a exp@PSLDB03 (TNS V1-V3) SELECT NAME, OBJID, OWNER, ...
457 457 0.64 bsa0wjtftg3uw select file# from file$ where ...
Instance Activity Stats
Statistic Total per Second per Trans
CPU used by this session 54,051 14.78 28.64
CPU used when call started 53,326 14.58 28.26
CR blocks created 1,114 0.30 0.59
Cached Commit SCN referenced 755,322 206.51 400.28
Commit SCN cached 29 0.01 0.02
DB time 62,190 17.00 32.96
DBWR checkpoint buffers written 3,247 0.89 1.72
DBWR checkpoints 79 0.02 0.04
DBWR object drop buffers written 118 0.03 0.06
DBWR parallel query checkpoint buffers written 0 0.00 0.00
DBWR revisited being-written buffer 0 0.00 0.00
DBWR tablespace checkpoint buffers written 169 0.05 0.09
DBWR thread checkpoint buffers written 3,078 0.84 1.63
DBWR transaction table writes 0 0.00 0.00
DBWR undo block writes 11,245 3.07 5.96
DFO trees parallelized 0 0.00 0.00
DML statements parallelized 0 0.00 0.00
IMU CR rollbacks 29 0.01 0.02
IMU Flushes 982 0.27 0.52
IMU Redo allocation size 1,593,112 435.57 844.26
IMU commits 991 0.27 0.53
IMU contention 3 0.00 0.00
IMU ktichg flush 3 0.00 0.00
IMU pool not allocated 0 0.00 0.00
IMU recursive-transaction flush 1 0.00 0.00
IMU undo allocation size 3,280,968 897.05 1,738.72
IMU- failed to get a private strand 0 0.00 0.00
Misses for writing mapping 0 0.00 0.00
OS Integral shared text size 0 0.00 0.00
OS Integral unshared data size 0 0.00 0.00
OS Involuntary context switches 0 0.00 0.00
OS Maximum resident set size 0 0.00 0.00
OS Page faults 0 0.00 0.00
OS Page reclaims 0 0.00 0.00
OS System time used 0 0.00 0.00
OS User time used 0 0.00 0.00
OS Voluntary context switches 0 0.00 0.00
PX local messages recv'd 0 0.00 0.00
PX local messages sent 0 0.00 0.00
Parallel operations downgraded to serial 0 0.00 0.00
Parallel operations not downgraded 0 0.00 0.00
SMON posted for dropping temp segment 0 0.00 0.00
SMON posted for undo segment shrink 0 0.00 0.00
SQL*Net roundtrips to/from client 266,339 72.82 141.14
active txn count during cleanout 677 0.19 0.36
application wait time 243 0.07 0.13
background checkpoints completed 0 0.00 0.00
background checkpoints started 0 0.00 0.00
background timeouts 17,769 4.86 9.42
branch node splits 0 0.00 0.00
buffer is not pinned count 11,606,002 3,173.19 6,150.50
buffer is pinned count 65,043,685 17,783.53 34,469.36
bytes received via SQL*Net from client 27,009,252 7,384.57 14,313.33
bytes sent via SQL*Net to client ############### 69,310,703.02 134,343,168.92
calls to get snapshot scn: kcmgss 382,084 104.47 202.48
calls to kcmgas 15,558 4.25 8.24
calls to kcmgcs 1,886 0.52 1.00
change write time 488 0.13 0.26
cleanout - number of ktugct calls 628 0.17 0.33
cleanouts and rollbacks - consistent read gets 3 0.00 0.00
cleanouts only - consistent read gets 53 0.01 0.03
cluster key scan block gets 77,478 21.18 41.06
cluster key scans 41,479 11.34 21.98
commit batch/immediate performed 550 0.15 0.29
commit batch/immediate requested 550 0.15 0.29
commit cleanout failures: block lost 0 0.00 0.00
commit cleanout failures: buffer being written 0 0.00 0.00
commit cleanout failures: callback failure 29 0.01 0.02
commit cleanout failures: cannot pin 0 0.00 0.00
commit cleanouts 19,562 5.35 10.37
commit cleanouts successfully completed 19,533 5.34 10.35
commit immediate performed 550 0.15 0.29
commit immediate requested 550 0.15 0.29
commit txn count during cleanout 396 0.11 0.21
concurrency wait time 23 0.01 0.01
consistent changes 1,803 0.49 0.96
consistent gets 26,887,134 7,351.18 14,248.61
consistent gets - examination 1,524,222 416.74 807.75
consistent gets direct 0 0.00 0.00
consistent gets from cache 26,887,134 7,351.18 14,248.61
cursor authentications 773 0.21 0.41
data blocks consistent reads - undo records applied 1,682 0.46 0.89
db block changes 223,743 61.17 118.57
db block gets 214,573 58.67 113.71
db block gets direct 74 0.02 0.04
db block gets from cache 214,499 58.65 113.67
deferred (CURRENT) block cleanout applications 9,723 2.66 5.15
dirty buffers inspected 5,106 1.40 2.71
enqueue conversions 1,130 0.31 0.60
enqueue releases 49,151 13.44 26.05
enqueue requests 49,151 13.44 26.05
enqueue timeouts 0 0.00 0.00
enqueue waits 79 0.02 0.04
exchange deadlocks 0 0.00 0.00
execute count 184,109 50.34 97.57
failed probes on index block reclamation 1 0.00 0.00
free buffer inspected 6,521 1.78 3.46
free buffer requested 8,656 2.37 4.59
global undo segment hints helped 0 0.00 0.00
global undo segment hints were stale 0 0.00 0.00
heap block compress 457 0.12 0.24
hot buffers moved to head of LRU 5,016 1.37 2.66
immediate (CR) block cleanout applications 56 0.02 0.03
immediate (CURRENT) block cleanout applications 4,230 1.16 2.24
index crx upgrade (found) 0 0.00 0.00
index crx upgrade (positioned) 8,362 2.29 4.43
index fast full scans (full) 3,845 1.05 2.04
index fast full scans (rowid ranges) 0 0.00 0.00
index fetch by key 842,761 230.42 446.61
index scans kdiixs1 376,413 102.91 199.48
leaf node 90-10 splits 42 0.01 0.02
leaf node splits 89 0.02 0.05
lob reads 6,759,932 1,848.23 3,582.37
lob writes 11,788 3.22 6.25
lob writes unaligned 11,788 3.22 6.25
logons cumulative 272 0.07 0.14
messages received 133,602 36.53 70.80
messages sent 133,602 36.53 70.80
no buffer to keep pinned count 219 0.06 0.12
no work - consistent read gets 18,462,318 5,047.76 9,783.95
opened cursors cumulative 77,042 21.06 40.83
parse count (failures) 57 0.02 0.03
parse count (hard) 1,311 0.36 0.69
parse count (total) 70,872 19.38 37.56
parse time cpu 542 0.15 0.29
parse time elapsed 2,218 0.61 1.18
physical read IO requests 821 0.22 0.44
physical read bytes 15,212,544 4,159.25 8,061.76
physical read total IO requests 2,953 0.81 1.56
physical read total bytes 48,963,584 13,387.08 25,947.85
physical read total multi block requests 289 0.08 0.15
physical reads 1,857 0.51 0.98
physical reads cache 1,857 0.51 0.98
physical reads cache prefetch 1,036 0.28 0.55
physical reads direct 0 0.00 0.00
physical reads direct (lob) 0 0.00 0.00
physical reads direct temporary tablespace 0 0.00 0.00
physical reads prefetch warmup 0 0.00 0.00
physical write IO requests 6,054 1.66 3.21
physical write bytes 122,142,720 33,394.92 64,728.52
physical write total IO requests 11,533 3.15 6.11
physical write total bytes 199,223,808 54,469.58 105,577.00
physical write total multi block requests 5,894 1.61 3.12
physical writes 14,910 4.08 7.90
physical writes direct 74 0.02 0.04
physical writes direct (lob) 0 0.00 0.00
physical writes direct temporary tablespace 72 0.02 0.04
physical writes from cache 14,836 4.06 7.86
physical writes non checkpoint 14,691 4.02 7.79
pinned buffers inspected 4 0.00 0.00
prefetch clients - default 0 0.00 0.00
prefetch warmup blocks aged out before use 0 0.00 0.00
prefetch warmup blocks flushed out before use 0 0.00 0.00
prefetched blocks aged out before use 0 0.00 0.00
process last non-idle time 2,370 0.65 1.26
queries parallelized 0 0.00 0.00
recovery blocks read 0 0.00 0.00
recursive aborts on index block reclamation 0 0.00 0.00
recursive calls 643,220 175.86 340.87
recursive cpu usage 15,900 4.35 8.43
redo blocks read for recovery 0 0.00 0.00
redo blocks written 96,501 26.38 51.14
redo buffer allocation retries 0 0.00 0.00
redo entries 115,246 31.51 61.07
redo log space requests 0 0.00 0.00
redo log space wait time 0 0.00 0.00
redo ordering marks 3,605 0.99 1.91 -
Version count in statspack report-How to reduce this
I generate stats report every week for 24 Hr time period and analyze all top20 queries interms of buffer gets,physical reads and executions.I could tune the queries with the help of you.Recently my Boss asked me to look in to top version count queries and reduce the number of versions.
I have 4-5 queries which are running 300,000 times and has version count of 35.How can I reduce this number.please suggest me how to approach it.
Your help will be appreciated.Thanks in advance.
Thanks
AnandVersion count 35 out of 300000 doesn't look like a problem to me. Are you having performance issue on your system at all?
<br>
<br>
1. Are the subject queries using Bind variables ?<br>
2. What's the setting of CURSOR_SHARING?<br>
should have CURSOR_SHARING=FORCE<br>
3. check if Bug 3406977 apply to your case <br> -
I have been researching into what might look like a resource drain in an Oracle 7.3.4 database we have on a SCO OpenServevr 5.0.5 server.
There are a couple of applications written in PRO*C (compiled on Solaris with Oracle 8.1.5) always running that keep connections open to the DB. All exchange of data between the apps and the db happens via calls to stored procedures.
Examining the state of the connections, I noticed that the number of open cursors and UGA/PGA memory used seems to increase over time, and never stabilizes.
I experimented a bit and noticed that even if I open a session via SQL/PLUS and call an extermely simple procedure that opens a cursors, fetches it, closes it and then commits, the cursor remains open until the session is closed (I examined the session with Toad and Enterprise manager - and cursor cache count is set to 0). Is the open cursor consuming resources (e.g. using precious ram of the SGA) even after the procedure is ended? And if so, how can I release a maximum of resources when my applications are idle, without having to close and reopen the session?
Thanks, Gaetano GiuntaIf the open cursors are too many then
ALTER SYSTEM SET CURSOR_SHARING = FORCE;
Works only with oracle9i
uv to set ur initparam CURSOR_SHARING=FORCE.
Which will try using bind variables only.
Check docs on cursor_sharing may be u may get fair idea on bringing down cursor openings.... -
Hi
I have an SQL query that returns data like this
Col1 Col2
text1 1234
text2 4321
I have created a report region based on the SQL query, and using the builtin report template "default vertical report, look1",. This shows the data like this:
Col1 Text1
Col2 1234
Col1 text2
Col2 4321
But what I want is this:
Col1 Text1 Text2
Col2 1234 4321
In other words, I want all the rows from the query to be displayed vertically, across the page. Is this in any way possible?
I have looked into creating a custom report template, but having been able to figure it out. The Apex users guide, is quit silent on how to do this.
Regards, and thanks in advance for any help
SørenSmors,
Here is a package that will let you create pivot results whatever the table is. You might have to change the size of the variables to suit your needs ...
CREATE OR REPLACE PACKAGE PIVOT AS
TYPE REFCURSOR IS REF CURSOR;
TYPE ARRAY IS TABLE OF VARCHAR2(30);
PROCEDURE PIVOT (P_MAX_COLS IN NUMBER DEFAULT NULL,
P_MAX_COLS_QUERY IN VARCHAR2 DEFAULT NULL,
P_QUERY IN VARCHAR2,
P_ANCHOR IN ARRAY,
P_PIVOT IN ARRAY,
P_CURSOR IN OUT REFCURSOR );
END;
SHOW ERRORS
CREATE OR REPLACE PACKAGE BODY PIVOT AS
PROCEDURE PIVOT (P_MAX_COLS IN NUMBER DEFAULT NULL,
P_MAX_COLS_QUERY IN VARCHAR2 DEFAULT NULL,
P_QUERY IN VARCHAR2,
P_ANCHOR IN ARRAY,
P_PIVOT IN ARRAY,
P_CURSOR IN OUT REFCURSOR ) AS
L_MAX_COLS NUMBER;
L_QUERY LONG;
L_CNAMES ARRAY;
BEGIN
IF (P_MAX_COLS IS NOT NULL) THEN
L_MAX_COLS := P_MAX_COLS;
ELSIF (P_MAX_COLS_QUERY IS NOT NULL) THEN
EXECUTE IMMEDIATE P_MAX_COLS_QUERY INTO L_MAX_COLS;
ELSE
RAISE_APPLICATION_ERROR (-20001, 'Cannot figure out max cols');
END IF;
-- NOW CONSTRUCT THE QUERY THAN CAN ANSWER THE QUESTION FOR US...
-- START WITH THE C1,C2 ... CX COLUMNS
L_QUERY := 'SELECT ';
FOR I IN 1..P_ANCHOR.COUNT LOOP
L_QUERY := L_QUERY || P_ANCHOR(i) ||',';
END LOOP;
-- NOW ADD IN THE C(x+1)... CN COLUMNS TO BE PIVOTED
FOR i IN 1..L_MAX_COLS LOOP
FOR j IN 1..P_PIVOT.COUNT LOOP
L_QUERY := L_QUERY ||
'MAX(DECODE(RN,'||i||','||
P_PIVOT(J)||',NULL)) ' ||
P_PIVOT(J)||'_'||i||',';
END LOOP;
END LOOP;
-- NOW JUST ADD IN THE ORIGINAL QUERY
L_QUERY := RTRIM(L_QUERY,',')||' FROM ('||P_QUERY||') GROUP BY ';
-- AND THEN GROUP BY COLUMNS...
FOR I IN 1..P_ANCHOR.COUNT LOOP
L_QUERY := L_QUERY || P_ANCHOR(i) ||',';
END LOOP;
L_QUERY := RTRIM(L_QUERY,',');
INSERT INTO X_TAB VALUES (L_QUERY);
COMMIT;
-- AND RETURN IT
EXECUTE IMMEDIATE 'ALTER SESSION SET CURSOR_SHARING = FORCE';
OPEN P_CURSOR FOR L_QUERY;
EXECUTE IMMEDIATE 'ALTER SESSION SET CURSOR_SHARING = EXACT';
END;
END;
SHOW ERROR
BEGIN
PIVOT.PIVOT(
P_MAX_COLS_QUERY => 'SELECT MAX(COUNT(*)) FROM EMP GROUP BY DEPTNO,JOB',
P_QUERY => 'SELECT DEPTNO,JOB,ENAME,SAL,ROW_NUMBER() OVER
(PARTITION BY DEPTNO,JOB ORDER BY SAL,ENAME ) RN
FROM EMP A',
P_ANCHOR => PIVOT.ARRAY ('DEPTNO','JOB'),
P_PIVOT => PIVOT.ARRAY ('ENAME', 'SAL'),
P_CURSOR => :X );
END;
Keep Smiling,
Bob R -
Oracle instance crashing when enabling use_indirect_data_buffers=true
I have a Windows 2003 EE server (32bit) with 16GB of ram hosting a 10.2.0.2 Oracle server which is used to support a commercial software package (arcsight). I'm trying to get the Oracle backend to leverage the available system memory. I've read 50-60 different articles and posts regarding AWE and Oracle. I have successfully tuned the userva parameter in order to get the server to boot stable with the /3gb boot parameter. I've gotten to the point that the oracle instance will start up, but within about 30-60 seconds the instance will crash. Below is the information I believe that is relevant:
*.......From computer Registry.........*
AWE_MEMORY_WINDOW = 1288486912
ORA_WORKINGSETMIN = 2
*...........From init.ora.............*
*.__dg_broker_service_names=';'
arcsight.__java_pool_size=0
arcsight.__large_pool_size=0
arcsight.__shared_pool_size=314572800
arcsight.__streams_pool_size=0
*.audit_file_dest='E:\oracle10g\OraHome10g\admin\arcsight\adump'
*.audit_sys_operations=true
*.audit_trail='db'
*.background_dump_dest='E:\oracle10g\OraHome10g\admin\arcsight\bdump'
*.compatible='10.2.0.1.0'
*.control_files='E:\oracle10g\OraHome10g\oradata\arcsight\control01.ctl','f:\arcsight\control02.ctl','g:\arcsight\control03.ctl'
*.core_dump_dest='E:\oracle10g\OraHome10g\admin\arcsight\cdump'
*.cursor_sharing='FORCE'
**.db_block_size=16384*
**.db_block_buffers=235929*
*.db_domain=''
*.db_file_multiblock_read_count=16
*.db_files=2000
*.db_name='arcsight'
*.db_writer_processes=4
*.dispatchers=''
*.job_queue_processes=10
*.log_archive_dest_1='LOCATION=H:'
*.log_buffer=1048576
*.open_cursors=2000
*.parallel_max_servers=0
*.pga_aggregate_target=314572800
*.processes=300
*.recyclebin='OFF'
*.remote_login_passwordfile='EXCLUSIVE'
*.sga_target=0
*.undo_management='AUTO'
*.undo_retention=43200
*.undo_tablespace='ARC_UNDO'
*.user_dump_dest='E:\oracle10g\OraHome10g\admin\arcsight\udump'
*.java_pool_size=0
*.large_pool_size=0
*.shared_pool_size=314572800
*.streams_pool_size=0
**.use_indirect_data_buffers=true*
*......From oradim.log.......*
Sun Feb 22 18:37:33 2009
E:\oracle10g\OraHome10g\bin\oradim.exe -shutdown -sid arcsight -usrpwd * -shutmode immediate -log oradim.log
Sun Feb 22 18:37:34 2009
ORA-01012: not logged on
Sun Feb 22 18:37:45 2009
E:\oracle10g\OraHome10g\bin\oradim.exe -startup -sid arcsight -usrpwd * -log oradim.log -nocheck 0
Sun Feb 22 18:37:51 2009
ORA-03113: end-of-file on communication channel
*.......From alert_arcsight.log.........*
Dump file e:\oracle10g\orahome10g\admin\arcsight\bdump\alert_arcsight.log
Sun Feb 22 23:20:51 2009
ORACLE V10.2.0.2.0 - Production vsnsta=0
vsnsql=14 vsnxtr=3
Windows Server 2003 Version V5.2 Service Pack 2
CPU : 8 - type 586, 4 Physical Cores
Process Affinity : 0x00000000
Memory (Avail/Total): Ph:14554M/16215M, Ph+PgF:14862M/15967M, VA:1926M/2047M
Sun Feb 22 23:20:51 2009
Starting ORACLE instance (normal)
Sun Feb 22 23:20:52 2009
Window memory size 1288503296
Sun Feb 22 23:20:52 2009
Minimum working set window size : 4096
LICENSE_MAX_SESSION = 0
LICENSE_SESSIONS_WARNING = 0
Picked latch-free SCN scheme 2
Autotune of undo retention is turned on.
IMODE=BR
ILAT =36
LICENSE_MAX_USERS = 0
SYS auditing is enabled
ksdpec: called for event 13740 prior to event group initialization
Starting up ORACLE RDBMS Version: 10.2.0.2.0.
System parameters with non-default values:
processes = 300
use_indirect_data_buffers= TRUE
__shared_pool_size = 318767104
shared_pool_size = 318767104
__large_pool_size = 0
large_pool_size = 0
__java_pool_size = 0
java_pool_size = 0
__streams_pool_size = 0
streams_pool_size = 0
sga_target = 0
control_files = E:\ORACLE10G\ORAHOME10G\ORADATA\ARCSIGHT\CONTROL01.CTL, F:\ARCSIGHT\CONTROL02.CTL, G:\ARCSIGHT\CONTROL03.CTL
db_block_buffers = 235932
db_block_size = 16384
db_writer_processes = 4
compatible = 10.2.0.1.0
log_archive_dest_1 = LOCATION=H:
log_buffer = 2097152
db_files = 2000
db_file_multiblock_read_count= 16
undo_management = AUTO
undo_tablespace = ARC_UNDO
undo_retention = 43200
recyclebin = OFF
remote_login_passwordfile= EXCLUSIVE
audit_sys_operations = TRUE
db_domain =
__dg_broker_service_names= ;
dispatchers =
job_queue_processes = 10
cursor_sharing = FORCE
parallel_max_servers = 0
audit_file_dest = E:\ORACLE10G\ORAHOME10G\ADMIN\ARCSIGHT\ADUMP
background_dump_dest = E:\ORACLE10G\ORAHOME10G\ADMIN\ARCSIGHT\BDUMP
user_dump_dest = E:\ORACLE10G\ORAHOME10G\ADMIN\ARCSIGHT\UDUMP
core_dump_dest = E:\ORACLE10G\ORAHOME10G\ADMIN\ARCSIGHT\CDUMP
audit_trail = DB
db_name = arcsight
open_cursors = 2000
pga_aggregate_target = 314572800
PMON started with pid=2, OS id=6676
PSP0 started with pid=6, OS id=7544
MMAN started with pid=10, OS id=7560
DBW0 started with pid=14, OS id=6500
DBW1 started with pid=18, OS id=6800
DBW2 started with pid=22, OS id=6276
DBW3 started with pid=26, OS id=520
LGWR started with pid=30, OS id=6756
CKPT started with pid=34, OS id=6380
SMON started with pid=38, OS id=7472
RECO started with pid=42, OS id=7696
CJQ0 started with pid=46, OS id=7912
MMON started with pid=50, OS id=7576
MMNL started with pid=54, OS id=6852
Sun Feb 22 23:20:53 2009
alter database mount exclusive
Sun Feb 22 23:20:57 2009
Setting recovery target incarnation to 1
Sun Feb 22 23:20:57 2009
Successful mount of redo thread 1, with mount id 1799551061
Sun Feb 22 23:20:57 2009
Database mounted in Exclusive Mode
Completed: alter database mount exclusive
Sun Feb 22 23:20:57 2009
alter database open
Sun Feb 22 23:20:58 2009
Beginning crash recovery of 1 threads
parallel recovery setup failed: using serial mode
Sun Feb 22 23:20:58 2009
Started redo scan
Sun Feb 22 23:20:58 2009
Completed redo scan
0 redo blocks read, 0 data blocks need recovery
Sun Feb 22 23:20:58 2009
Started redo application at
Thread 1: logseq 1137, block 3, scn 1707289029
Sun Feb 22 23:20:58 2009
Recovery of Online Redo Log: Thread 1 Group 5 Seq 1137 Reading mem 0
Mem# 0: I:\ARCSIGHT\REDO\REDO5.LOG
Mem# 1: I:\ARCSIGHT\REDO\REDO05B.LOG
Sun Feb 22 23:20:58 2009
Completed redo application
Sun Feb 22 23:20:58 2009
Completed crash recovery at
Thread 1: logseq 1137, block 3, scn 1707309030
0 data blocks read, 0 data blocks written, 0 redo blocks read
Sun Feb 22 23:20:59 2009
LGWR: STARTING ARCH PROCESSES
ARC0 started with pid=62, OS id=6972
Sun Feb 22 23:20:59 2009
ARC0: Archival started
ARC1 started with pid=66, OS id=6640
Sun Feb 22 23:20:59 2009
ARC1: Archival started
LGWR: STARTING ARCH PROCESSES COMPLETE
Thread 1 advanced to log sequence 1138
Thread 1 opened at log sequence 1138
Current log# 4 seq# 1138 mem# 0: G:\ARCSIGHT\REDO\REDO4.LOG
Current log# 4 seq# 1138 mem# 1: G:\ARCSIGHT\REDO\REDO04B.LOG
Successful open of redo thread 1
Sun Feb 22 23:21:00 2009
MTTR advisory is disabled because FAST_START_MTTR_TARGET is not set
Sun Feb 22 23:21:00 2009
ARC0: Becoming the 'no FAL' ARCH
ARC0: Becoming the 'no SRL' ARCH
Sun Feb 22 23:21:00 2009
ARC1: Becoming the heartbeat ARCH
Sun Feb 22 23:21:00 2009
SMON: enabling cache recovery
Sun Feb 22 23:21:02 2009
Errors in file e:\oracle10g\orahome10g\admin\arcsight\bdump\arcsight_pmon_6676.trc:
ORA-27103: internal error
OSD-00028: additional error information
Sun Feb 22 23:21:02 2009
PMON: terminating instance due to error 27103
Sun Feb 22 23:21:02 2009
Errors in file e:\oracle10g\orahome10g\admin\arcsight\bdump\arcsight_reco_7696.trc:
ORA-27103: internal error
Sun Feb 22 23:21:02 2009
Errors in file e:\oracle10g\orahome10g\admin\arcsight\bdump\arcsight_smon_7472.trc:
ORA-27103: internal error
Sun Feb 22 23:21:02 2009
Errors in file e:\oracle10g\orahome10g\admin\arcsight\bdump\arcsight_ckpt_6380.trc:
ORA-27103: internal error
Sun Feb 22 23:21:02 2009
Errors in file e:\oracle10g\orahome10g\admin\arcsight\bdump\arcsight_lgwr_6756.trc:
ORA-27103: internal error
Sun Feb 22 23:21:03 2009
Errors in file e:\oracle10g\orahome10g\admin\arcsight\bdump\arcsight_dbw3_520.trc:
ORA-27103: internal error
Sun Feb 22 23:21:03 2009
Errors in file e:\oracle10g\orahome10g\admin\arcsight\bdump\arcsight_dbw2_6276.trc:
ORA-27103: internal error
Sun Feb 22 23:21:03 2009
Errors in file e:\oracle10g\orahome10g\admin\arcsight\bdump\arcsight_dbw1_6800.trc:
ORA-27103: internal error
Sun Feb 22 23:21:03 2009
Errors in file e:\oracle10g\orahome10g\admin\arcsight\bdump\arcsight_dbw0_6500.trc:
ORA-27103: internal error
Sun Feb 22 23:21:03 2009
Errors in file e:\oracle10g\orahome10g\admin\arcsight\bdump\arcsight_mman_7560.trc:
ORA-27103: internal error
Sun Feb 22 23:21:04 2009
Errors in file e:\oracle10g\orahome10g\admin\arcsight\bdump\arcsight_psp0_7544.trc:
ORA-27103: internal error
Instance terminated by PMON, pid = 6676
I appreciate any input on what to look at to further isolate this issue. I'd run into many other issues along the way (setting AWE_WINDOW_MEMORY to a proper size, setting db_block_buffers to a proper value, etc) that various forum searches helped resolve but I've not been able to find anything related to the errors I'm getting now. If I set use_indirect_data_buffers=false and tune back the db_block_buffers, the instance starts without any problems. Its just when I try and enable the use of AWE that I'm having a problem.
NickJust wanted to close out this tread in case anyone else runs into a similar problem. Turns out we ran into a bug documented in the below linked article (we're using AMD processors). Essentially needed to disable NUMA.
http://blog.csdn.net/orapeasant/archive/2007/06/05/1639532.aspx
excerpt ....
But please be aware of Bug 4494543 - affecting 10g and fixed in Oracle 11.0 ......
ORA-7445: CORE DUMP [ACCESS_VIOLATION] WITH USE_INDIRECT_DATA_BUFFERS=TRUE
Rediscovery Information:
1) Using 32-Bit Oracle on a 32-Bit Windows 2003 server running on an AMD Opteron 64-Bit chip.
2) You have set use_indirect_data_buffers=true in init.ora
Workaround: Basically disable NUMA feature on 32-Bit platform :-
1) Set ENABLENUMA = FALSE in Windows registry for the Oracle Home.
2) Set enableNUMA_optimizations = FALSE (init.ora)
Thanks for the help. We'll see if access to the extra memory will be useful or not .....
Nick
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