'Gather Schema Statistics' concurrent request question
Hello,
I just have a question about the 'Gather Schema Statistics' concurrent request.
We run this every evening on ALL schemas, however our SYS and SYSTEM schemas aren't registered in the application so therefore stats aren't gathered for these.
Should SYS and SYSTEM be registered and stats gathered for these 2 schemas every night?
Please advise
Thank you
Sarah
Hi Sarah,
First of all, Its not necessary to run gather schema statistics every evening. Either once in a week or month would suffice the need. Please look at the following note:
How Often Should Gather Schema Statistics Program be Run? [ID 168136.1]
With respect to your question:
Sys and system users are not included in the "ALL" specified parameters in gather schema statistic program. It includes the list of product related users. But it is recommended you collect statistics for sys and system users and you can automate and achieve this by creating a job and schedule it at DB level. Please follow the following note which will assist you:
EBPERF FAQ - Collecting Statistics in Oracle EBS 11i and R12 [ID 368252.1]
Cheers,
Asif
Similar Messages
-
Re: Gather Schema statistics Concurrent request....
Did you really need to unlock stats on tables owned by SYS?
I have just done the same but I only unlocked stats on tables NOT owned by SYS
Did I do wrong?Did you really need to unlock stats on tables owned by SYS?
No -- EBPERF FAQ - Collecting Statistics in Oracle EBS 11i and R12 (Doc ID 368252.1)
I have just done the same but I only unlocked stats on tables NOT owned by SYS
Did I do wrong?
No, and you should be good.
Thanks,
Hussein -
Gather Schema Statistics request fails with ORA-03113
Hi All,
We are run Oracle 9i R2 database & 11i APPS.
when we are run the Gather Schema Statistics concurrent request it's come with following error massege.
Gather Schema Statistics concurrent request fails with following error:
FDPSTP failed due to ORA-03113: end-of-file on communication channel
Please help.Is this the only program that gives this error ? After how long does this error get generated ? Is the database being shut down when this concurrent is running ?
Pl see MOS Docs
1020463.6 - DIAGNOSING ORA-3113 ERRORS
17613.1 - ORA-03113 on Unix - What Information to Collect
You will most likely get a better/faster response by posting EBS questions on the EBS Forums at http://forums.oracle.com/forums/category.jspa?categoryID=3
HTH
Srini -
Gather Schema Statistics produces HUGE oracle trace file
Hi
I am running gather schema stats on my E-Biz 12.1.3 / 11.2.0.3 system
Each week we run Gather Schema Stats
I have noticed that when the job completes a 3g trace fuile is produced under the Oracle RDBMS home
I have tried un-checking the box when the COnc Request is submitted to DO NOT SAVE OUTPUT FILE but it is still procuced.
I dont want it and do not understand why it is produced. Anyone out there have a resolution?I have noticed that when the job completes a 3g trace fuile is produced under the Oracle RDBMS homeWhat is the file name/location? What is the contents of this trace file?
I have tried un-checking the box when the COnc Request is submitted to DO NOT SAVE OUTPUT FILE but it is still procuced.Do you have any debug/trace enabled on HRMS schema?
I dont want it and do not understand why it is produced. Anyone out there have a resolution?Was this working before? If yes, any changes been done since then?
What are the parameters you use to run "Gather Schema Statistics" concurrent program?
Thanks,
Hussein -
Does concurrent Gather Schema Statistics generate histograms?
Hello:
Does anybody know if concurrent Gather Schema Statistics generates histograms?
Thank you.
Alex.Alex,
When Gather Schema Statistics is executed, it reads FND_HISTOGRAM_COLS and builds the histograms.
Performance Tuning the Apps Database Layer
http://blogs.oracle.com/stevenChan/2007/05/performance_tuning_the_apps_da.html
Regards,
Hussein -
Gather Schema Statistics Report taking more than 13 hours to complete is it normal?
I have run Gather Schema Statistics Report at 9 pm and it completed on 11am next morning. It almost took more than 13 hours, is this behavior normal.
I have used the following parameter.
Schema name: ALL
Estimate percent:50
Backup Flag :NOBACKUP
History Mode :LASTRUN
Gather Option:GATHER
Invalidate Dependent Cursor : Y
My database size is about 250 GB.
Please replyGather schema stastics is erroring out when i'm using the GATHER_AUTO option with 10%.
Here is the log file
+---------------------------------------------------------------------------+
Application Object Library: Version : 12.0.0
Copyright (c) 1979, 1999, Oracle Corporation. All rights reserved.
FNDGSCST module: Gather Schema Statistics
+---------------------------------------------------------------------------+
Current system time is 13-AUG-2013 10:42:12
+---------------------------------------------------------------------------+
**Starts**13-AUG-2013 10:42:12
ORACLE error 20001 in FDPSTP
Cause: FDPSTP failed due to ORA-20001: SYS_NTGNSVL1S+OCZGRAAHKD9MYG== is an invalid identifier
ORA-06512: at "APPS.FND_STATS", line 774
ORA-06512: at line 1
The SQL statement being executed at the time of the error was: SE
+---------------------------------------------------------------------------+
Start of log messages from FND_FILE
+---------------------------------------------------------------------------+
In GATHER_SCHEMA_STATS , schema_name= ALL percent= 10 degree = 8 internal_flag= NOBACKUP
ORA-20001: SYS_NTGNSVL1S+OCZGRAAHKD9MYG== is an invalid identifier
+---------------------------------------------------------------------------+
End of log messages from FND_FILE
+---------------------------------------------------------------------------+
+---------------------------------------------------------------------------+
Executing request completion options...
Finished executing request completion options.
+---------------------------------------------------------------------------+
Concurrent request completed
Current system time is 13-AUG-2013 10:43:29
+---------------------------------------------------------------------------+
I have used the following parameters
Schema name: ALL
Estimate percent:10
Backup Flag :NOBACKUP
History Mode :LASTRUN
Gather Option:GATHER_AUTO
Invalidate Dependent Cursor : Y -
Hi All,
When I run gather schema statistics, it is completing status normal . But it took only 45 min.
EBS - 12.1.3
DB - 11.2.0.3
OS - RHEL 64
As per my understanding , it will take 2-3 hrs. After DB upgraded to 11.2.0.3, got an completd with error and followd the note: Gather Schema Statistics fails with Ora-20001 errors after 11G database upgrade [ID 781813.1]
After that it completd with normal. But it took time only 45 min max in every run. with percentage 10 and 40. My DB size is 90 GB
Request Log file:
Start of log messages from FND_FILE
+---------------------------------------------------------------------------+
In GATHER_SCHEMA_STATS , schema_name= ALL percent= 40 degree = 8 internal_flag= NOBACKUP
stats on table FND_CP_GSM_IPC_AQTBL is locked
stats on table FND_SOA_JMS_IN is locked
stats on table FND_SOA_JMS_OUT is locked
+---------------------------------------------------------------------------+
End of log messages from FND_FILE
+---------------------------------------------------------------------------+
Start of log messages from FND_FILE
+---------------------------------------------------------------------------+
In GATHER_SCHEMA_STATS , schema_name= ALL percent= 10 degree = 8 internal_flag= NOBACKUP
stats on table FND_CP_GSM_IPC_AQTBL is locked
stats on table FND_SOA_JMS_IN is locked
stats on table FND_SOA_JMS_OUT is locked
+---------------------------------------------------------------------------+
End of log messages from FND_FILE
+---------------------------------------------------------------------------+
Now I querey the below :
SQL> select column_name, nvl(hsize,254) hsize from FND_HISTOGRAM_COLS where table_name = 'JE_BE_LINE_TYPE_MAP' order by column_name;
COLUMN_NAME HSIZE
SOURCE 254
a) Is this an expected behavior ?
b) If not, please suggest, to fix
Thanks
SALDid the concurrent program fail? -- Gather Schema Statistics Fails With Error For APPLSYS Schema (Doc ID 1393184.1)
Please check the LAST_ANALYZED column of DBA_TABLES and DBA_INDEXES views (Note: 166346.1 - How to Determine When a Table Was Last Analyzed By the Gather Schema Statistics Program).
Thanks,
Hussein -
Gather Schema Statistics - GATHER AUTO option failing to gather stats
Hi ,
We recently upgraded to 10g DB and 11.5.10 version of Oracle EBS. I want to employ GATHER AUTO option while running Gather Schema Statistics.
To test the working, I created a test table with 1 million rows. Then, stats were gathered for this table alone by using Gather Table Stats. Now, I deleted ~12% of rows & issued commit. The table all_tab_statistics shows that the table has stale statistics (stale stats column = YES). After that I ran Gather Schema Stats for that particular schema. But the request did not pick the test table to be gathered.
What is the criterion on which Oracle chooses which all tables to be gather statistics for under Gather Auto option? I am aware of the 10% change in data, but how is this 10% calculated? Is it only based on (insert + update + delete)?
Also, what is the difference between Gather Auto and Gather Stale ?
Any help is appreciated.
Thanks,
JithinRandalf,
FYI.. this is what happens inside the concurrent progarm call.. there are a few additional parameters for output/ error msgs:
procedure GATHER_SCHEMA_STATS(errbuf out varchar2,
retcode out varchar2,
schemaname in varchar2,
estimate_percent in number,
degree in number ,
internal_flag in varchar2,
request_id in number,
hmode in varchar2 default 'LASTRUN',
options in varchar2 default 'GATHER',
modpercent in number default 10,
invalidate in varchar2 default 'Y'
is
exist_insufficient exception;
bad_input exception;
pragma exception_init(exist_insufficient,-20000);
pragma exception_init(bad_input,-20001);
l_message varchar2(1000);
Error_counter number := 0;
Errors Error_Out;
-- num_request_id number(15);
conc_request_id number(15);
degree_parallel number(2);
begin
-- Set the package body variable.
stathist := hmode;
-- check first if degree is null
if degree is null then
degree_parallel:=def_degree;
else
degree_parallel := degree;
end if;
l_message := 'In GATHER_SCHEMA_STATS , schema_name= '|| schemaname
|| ' percent= '|| to_char(estimate_percent) || ' degree = '
|| to_char(degree_parallel) || ' internal_flag= '|| internal_flag ;
FND_FILE.put_line(FND_FILE.log,l_message);
BEGIN
FND_STATS.GATHER_SCHEMA_STATS(schemaname, estimate_percent,
degree_parallel, internal_flag, Errors, request_id,stathist,
options,modpercent,invalidate);
exception
when exist_insufficient then
errbuf := sqlerrm ;
retcode := '2';
l_message := errbuf;
FND_FILE.put_line(FND_FILE.log,l_message);
raise;
when bad_input then
errbuf := sqlerrm ;
retcode := '2';
l_message := errbuf;
FND_FILE.put_line(FND_FILE.log,l_message);
raise;
when others then
errbuf := sqlerrm ;
retcode := '2';
l_message := errbuf;
FND_FILE.put_line(FND_FILE.log,l_message);
raise;
END;
FOR i in 0..MAX_ERRORS_PRINTED LOOP
exit when Errors(i) is null;
Error_counter:=i+1;
FND_FILE.put_line(FND_FILE.log,'Error #'||Error_counter||
': '||Errors(i));
-- added to send back status to concurrent program manager bug 2625022
errbuf := sqlerrm ;
retcode := '2';
END LOOP;
end; -
How often we need to run gather schema statistics etc.. ??
HI,
Am on 11.5.10.2
RDBMS 9.2.0.6
How often we need to run the following requests in Production...
1.Gather schema statistics
2.Gather Column statistics
3.Gather Table statistics
4.Gather All Column statisitics
ThanksHi;
We discussed here before about same issue. Please check below thread which could be helpful about your issue:
How often we need to run gather schema statistics
Re: Gather schema stats run
How we can collect custom schema information wiht gather statistics
gather schema stats for EBS 11.5.10
gather schema stats conc. program taking too long time
Re: gather schema stats conc. program taking too long time
How it runs
Gather Schema Statistics
http://oracle-apps-dba.blogspot.com/2007/07/gather-statistics-for-oracle.html
gather statistict collect which informations
Gather Schema Statistics...
Regard
Helios -
Gather Schema Statistics issue?
Hi
Actually, we have a custom schema in our EBS R12.0.6 instance database. But i have observed that, 'Gather Schema Statistics' program is not picking-up this schema. why? May be something wrong with database schema registration but since 1 & half year the interface associated with this schema is running fine. I do not know,how to resolve this issue?
I can manually run 'Gather Table Statistics' program against all tables.
RegardsHi;
Actually, we have a custom schema in our EBS R12.0.6 instance database. But i have observed that, 'Gather Schema Statistics' program is not picking-up this schema. why? May be something wrong with database schema registration but since 1 & half year the interface associated with this schema is running fine. I do not know,how to resolve this issue?For can run hather stat for custom schema please check
gather schema stats for EBS 11.5.10
gather schema stats for EBS 11.5.10
I can manually run 'Gather Table Statistics' program against all tables. Please see:
How To Gather Statistics On Oracle Applications 11.5.10(and above) - Concurrent Process,Temp Tables, Manually [ID 419728.1]
Also see:
How to work Gather stat
Gather Schema Statistics
http://oracle-apps-dba.blogspot.com/2007/07/gather-statistics-for-oracle.html
Regard
Helios -
Can we track the progress of Gather Schema Statistics?
Is there a way that we can track the progress of gather schema statistics other than querying dba_tables?
I am trying to find a better option. Please suggest.
Thanks,
SuneelSRV008 wrote:
Is there a way that we can track the progress of gather schema statistics other than querying dba_tables?
I am trying to find a better option. Please suggest.
Thanks,
SuneelNo, it's either the request log file or dba_tables (last_analyzed column).
Thanks,
Hussein -
Gather Schema Statistics improve the performance of the R12 application?
Hi All,
If we run “Gather Schema Statistics” program, it will improve the performance of the R12 application?
Platform Linux and DB version 10.2.0.4.
Thanks & Regards,
TharunHi Tharun,
If we ruer n “Gather Schema Statistics” program, it will improve the performance of the R12 application?
Yes, it will speed up as it ensures to have an up to date statistics.
Please refer notes:
Concurrent Processing - How To Gather Statistics On Oracle Applications Release 11i and/or Release 12 - Concurrent Process,Temp Tables, Manually [ID 419728.1]
How Often Should Gather Schema Statistics Program be Run? [ID 168136.1]
Why Stats Gather?
Stats gathering must be set as a routine job and is recommended to be scheduled. Even though this program is available from the fronted in the form of submitting a concurrent program basically it performs a DB level enhancement and ensures that you have an up to date optimizer statistics.Because the objects in a database can be constantly changing, statistics must be regularly updated so that they accurately describe these database objects.
For indepth understand as to why it should be run, please refer doc:
Managing Optimizer Statistics
Thanks &
Best Regards, -
Hi
I ran gather schema Statistics
In GATHER_SCHEMA_STATS , schema_name= ALL percent= 10 degree = 4 internal_flag= NOBACKUP
the error are:
stats on table AQ$_WF_CONTROL_P is locked
stats on table FND_CP_GSM_IPC_AQTBL is locked
Error #1: ERROR: While GATHER_TABLE_STATS:
object_name=AP.JE_FR_DAS_010***ORA-20001: invalid column name or duplicate columns/column groups/expressions in method_opt***
Error #2: ERROR: While GATHER_TABLE_STATS:
object_name=AP.JE_FR_DAS_010_NEW***ORA-20001: invalid column name or duplicate columns/column groups/expressions in method_opt***
Error #3: ERROR: While GATHER_TABLE_STATS:
object_name=AP.JG_ZZ_SYS_FORMATS_ALL_B***ORA-20001: invalid column name or duplicate columns/column groups/expressions in method_opt***
I ran this while ago.
anyone can help me to fix it
ThanksPlease see old threads which discuss the same issue -- http://forums.oracle.com/forums/search.jspa?threadID=&q=Gather+AND+Schema+AND+Statistics+AND+ORA-20001&objID=c3&dateRange=all&userID=&numResults=15&rankBy=10001
Thanks,
Hussein -
Gather Schema Stats concurrent program error with lock
We are running Gather Schema Statistics from Oracle E-Business Suite 11.5.10 against a 10..2 database. When run against individual schema it completes with no error, but when run against ALL schemas it completes with the following error.
“ERROR: While GATHER_TABLE_STATS: object_name=XDP.XDP_ORDER_PROCESSOR_QTAB***ORA-20005: object statistics are locked (stattype = ALL)***”
I understand why the tables are locked and I know how to unlock the table (exec dbms_stats.unlock_schema_stats('schema_owner'); exec dbms_stats.unlock_table_stats('table_owner','table_name');
My query is this: Metalink Note [ID 433240.1] advises If the table is a queue table then the statistics should remain empty and locked so that dynamic sampling is used due to the volatility of queue tables.
If I follow the advise in the note above, and leave the tables as locked then gather Schema Statistics will continue to complete with an Error (its annoying).
I found metalink note (375351.1) which seems to say that all tables can be unlocked including queue tables.
Has anyone encountered this problem, do you recommended that I unlock this tables even though they are queue tables.Hi;
Please follow doc ORA-20005 WHEN GATHERING STATISTICS FOR APPS 11i / R12 IN 10G or 11G [ID 375351.1],i belive you can run command wihtout issue. If its prod than you can also rise SR and confirm wiht oracle support
Regard
Helios -
APPLICATIONS 11I GATHER SCHEMA STATISTICS의 수행 주기
제품 : AOL
작성날짜 : 2003-12-02
APPLICATIONS 11I GATHER SCHEMA STATISTICS의 수행 주기
================================================
PURPOSE
APPLICATIONS 11I GATHER SCHEMA STATISTICS의 수행 주기
Explanation
Gather Schema Statistics 수행에 대한 정해진 주기는 없다. 일부 System은 매주 수행할 필요가 있을수 있고, 또 다른 System은 1개월 주기로 수행할 수 있다. 수행 주기는 data 양과 형태 그리고 얼마나 자주 변경되느냐에 따라 결정된다.
가장 효과적인 수행 주기를 결정하기 위하여 다른 Schedule 로 수행하여 Monitoring 이 필요하다.
일반적으로 다음과 같이 수행한다.
1) 많은 양의 Data 및 Data 내용이 변경된 후 수행
2) Data import 후 에 수행
3) Performance의 저하가 발생한경우.
11i 에서는 ANALYZE command 와 DBMS_STATS packages가 지원되지 않으므로 FND_STATS 을 사용하여 한다.
Gather Schema Statistics 는 FND_STATS 을 사용한다.
Example
Reference Documents
Note 168136.1 - How Often Should Gather Schema Statistics Program be
Run?john
you can do these things
1. gather schema statistics regularly weekly once -full
2. gather schema statistics daily - atleast 10%
3. rebuild the fragmented indexes regularly - 15 days
4. coalesce the tablespaces monthly once
5. purge the unwanted data weekly once
6. pin the db objects into SGA with dbms_shared_pool package
7. find the objects which have become invalid and then validate them .
8. purge workflow runtime data
and there are still some more that as system administrator you should keep a watch on....
but do the above you , your job is best done
any help post here
regards
sdsreenivas
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