Regarding Maxsize of Undo Tablespace

Dear expetrs
While executing a procedure i got error.
Error In Insertion..ORA-30036: unable to extend segment by 16384 in undo tablesp
ace 'UNDOTBS1'
then i increase the size of the Undo Tablespace
then again i got error.
ORA-01144: File size (7680000 blocks) exceeds maximum of 4194303 blocks
plz give me answer as soon as possible.
thnaks.

1) resize your datafile to 4194303 * db_block_size
alter database datafile < path/filename > resize <4194303 * db_block_size> ;
you find db_block_size by:
sqlplus /nolog
SQL> connect / as sysdba
SQL> show parameter db_block_size
or by simply have a look in the pfile (init<SID>.ora) in $ORACLE_HOME/dbs
2) add another file to the undo tablespace:
SQL>alter tablespace undotbs1 add datafile <path/filename> size <n> M;
a tablespace may have up to 1022 datafiles.
hope this helps
roman

Similar Messages

UNDO Tablespace usage

Hi All,
My undo tablespace is 97% full.
Is there any way to check which process is using more undo tablespace.
Thansk in Advance for your response.
Regards,
Ashwani N.

# UNDO tablespace usage
select a.process, a.program, a.module, a.machine, b.USED_UREC, c.sql_text
from v$sql c, v$session a, v$transaction b
where b.addr = a.taddr
and a.sql_address = c.address
and a.sql_hash_value = c.hash_value
order by b.USED_UREC;
SELECT s.sid , s.username , t.used_ublk
FROM v$transaction t
, v$session s
WHERE 1 = 1
AND t.ses_addr = s.saddr
column username format a15;
column segment_name format a15;
SELECT s.sid , s.username , t.used_ublk, round((t.used_ublk*8)/1024) size_in_MB_8kb_Block_size, round((t.used_ublk*16)/1024
) size_in_MB_16kb_Block_size
FROM v$transaction t
, v$session s
WHERE 1 = 1
AND t.ses_addr = s.saddr;
SELECT distinct rpad(s.sid,3) "SID",S.USERNAME,
E.SEGMENT_NAME,
T.START_TIME "Start",
rpad(T.STATUS,9) "Status",
round((t.used_ublk*8)/1024) "Size(MB)"
--T.USED_UBLK||' Blocks and '||T.USED_UREC||' Records' "Rollback Usage"
FROM DBA_DATA_FILES DF,
DBA_EXTENTS E,
V$SESSION S,
V$TRANSACTION T
WHERE DF.TABLESPACE_NAME = E.TABLESPACE_NAME AND
DF.FILE_ID = UBAFIL AND
S.SADDR = T.SES_ADDR AND
T.UBABLK BETWEEN E.BLOCK_ID AND E.BLOCK_ID+E.BLOCKS AND
E.SEGMENT_TYPE in( 'ROLLBACK','TYPE2 UNDO'source:-
http://blog.contractoracle.com/2008/08/undo-tablespace-usage.html

Doubt regarding ORA-30036: unable to extend segment by 8 in undo tablespace

I am using 11g Release 1 Database .
I have to analyze the performance of two tables of different designs which serve the same purpose and come up with the design which is efficient .
SQL> desc staging_dict
Name                                      Null?    Type
SNO                                                NUMBER
CODE_FRAGMENTS                                     CLOB
CODE_FRAGMENTS_U                                   CLOB
CODE_FRAGMENTS_D                                   CLOB
CODE_FRAGMENTS_DO                                  CLOB
SQL> desc staging_dict1
Name                                      Null?    Type
SNO                                                NUMBER
CODE_FRAGMENTS                                     CLOB
CODE_FRAGMENTS_UD                                  CLOB
CODE_TYPE                                          VARCHAR2(5 CHAR)Initially I tried inserting a few thousand records into both the tables . Then I did some conversion on one column and I populate the result on other column of the same table . So I update the table in bulk mode and I commit for every thousand records .
I have a undo tablespace of 2G with undo_retention=900 , retention guratantee is not set for the undo tablespace .
When I tried the conversion and update on the first table (STAGING_DICT) it took more time for around 2500 records compared to other table and when I increased the number of records to 10000 it threw an error
ORA-30036: unable to extend segment by 8 in undo tablespace 'UNDOTBS'
But I didn't come across this error when I tried the conversion and update on the table for the same 2500 records (STAGING_DICT1) and it was also 10 times faster .
My doubt is does the error ORA-30036 occur because it is saving the undo image of all the four clob columns though I am doing conversion on one column and updating the other column (using only two columns in the update and only one column is affected by update command) ?
Also how is that having less CLOB rows prove more effective by adding one more VARCHAR column which differentiates the code_frament type in the STAGING_DICT1 table than having it as more CLOB columns as in STAGING_DICT table ?

Don't you think the error OP reported is kind of weird?
Because as you said, Oracle stores "undo" of lob in user tablespace not undo tablespace if the lob is stored out-of-line.
1. If the size of lob was small, small size of undo would be stored into undo tablespace,
and OP would'nt have undo tablespace shortage problem.
(How does small lob flood undo tablespace?)
2. If the size of lob was big, OP would have 01555 error on user tablespace not undo tablespace shortage error.
So, i think there are 2 theories that can explain this abnormality.
1. OP hit the bug of massive undo generation.
2. OP is using securefile which is 11g new feature.
Oracle documents says that undo for securefile lob is stored in "undo" tablespace, not user tablespace.
But unfortunately, i'm not sture about this coz i didn't try it myself

Recovery lost undo tablespace and Redo log

Recovery undo tablespace
[email protected]> shutdown
Database closed.
Database dismounted.
ORACLE instance shut down.e
[email protected]> exit
Disconnected from Oracle9i Enterprise Edition Release 9.2.0.1.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.1.0 - Production
[ora920@tkyte-pc-isdn ora920]$ ls
control01.ctl cwmlite01.dbf indx01.dbf redo02.log redo0B.log temp01.dbf
users01.dbf
control02.ctl drsys01.dbf odm01.dbf redo03.log redo0C.log tools01.dbf
xdb01.dbf
control03.ctl example01.dbf redo01.log redo0A.log system01.dbf undotbs01.dbf
[ora920@tkyte-pc-isdn ora920]$ mv undotbs01.dbf undotbs01.dbf.xxx
[ora920@tkyte-pc-isdn ora920]$ sqlplus /nolog
SQL*Plus: Release 9.2.0.1.0 - Production on Sat Sep 28 08:33:29 2002
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
idle> connect / as sysdba
Connected to an idle instance.
idle> startup
ORACLE instance started.
Total System Global Area 143725064 bytes
Fixed Size 451080 bytes
Variable Size 109051904 bytes
Database Buffers 33554432 bytes
Redo Buffers 667648 bytes
Database mounted.
ORA-01157: cannot identify/lock data file 2 - see DBWR trace file
ORA-01110: data file 2: '/usr/oracle/ora920/OraHome1/oradata/ora920/undotbs01.dbf'
idle> show parameter undo
NAME TYPE VALUE
undo_management string AUTO
undo_retention integer 10800
undo_suppress_errors boolean FALSE
undo_tablespace string UNDOTBS1
idle> alter system set undo_management = manual scope=spfile;
System altered.
Note: disabling the undo tablespace here, this'll let us go back to "rollback segments"
and we'll use the system RBS to get back on our feet
idle> shutdown
ORA-01109: database not open
Database dismounted.
ORACLE instance shut down.
idle> exit
Disconnected from Oracle9i Enterprise Edition Release 9.2.0.1.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.1.0 - Production
[ora920@tkyte-pc-isdn ora920]$ !sql
sqlplus /nolog
SQL*Plus: Release 9.2.0.1.0 - Production on Sat Sep 28 08:35:34 2002
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
idle> connect / as sysdba;
Connected to an idle instance.
idle> startup
ORACLE instance started.
Total System Global Area 143725064 bytes
Fixed Size 451080 bytes
Variable Size 109051904 bytes
Database Buffers 33554432 bytes
Redo Buffers 667648 bytes
Database mounted.
ORA-01157: cannot identify/lock data file 2 - see DBWR trace file
ORA-01110: data file 2: '/usr/oracle/ora920/OraHome1/oradata/ora920/undotbs01.dbf'
Note: we still have to get rid of that thing..
idle> alter database datafile '/usr/oracle/ora920/OraHome1/oradata/ora920/undotbs01.dbf'
2 offline drop;
Database altered.
idle> alter database open;
Database altered.
idle> drop tablespace undotbs1;
Tablespace dropped.
idle> create UNDO tablespace undotbs1
2 datafile '/usr/oracle/ora920/OraHome1/oradata/ora920/undotbs01.dbf' size 25m
3 autoextend on next 1m maxsize 1024m;
Tablespace created.
idle> alter system set undo_management = auto scope=spfile;
System altered.
Now, we've put the undo tablespace "back" by creating a new one. Just bounce...
idle> shutdown
Database closed.
Database dismounted.
ORACLE instance shut down.
idle> exit
Disconnected from Oracle9i Enterprise Edition Release 9.2.0.1.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.1.0 - Production
[ora920@tkyte-pc-isdn ora920]$ !sql
sqlplus /nolog
SQL*Plus: Release 9.2.0.1.0 - Production on Sat Sep 28 08:40:51 2002
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
idle> connect / as sysdba;
Connected to an idle instance.
idle> startup
ORACLE instance started.
Total System Global Area 143725064 bytes
Fixed Size 451080 bytes
Variable Size 109051904 bytes
Database Buffers 33554432 bytes
Redo Buffers 667648 bytes
Database mounted.
Database opened.
idle> show parameter undo
NAME TYPE VALUE
undo_management string AUTO
undo_retention integer 10800
undo_suppress_errors boolean FALSE
undo_tablespace string UNDOTBS1
idle>
and we are right back where we started from
RECOVERY REDO TABLESPACE
STARTUP MOUNT;
RESTORE DATABASE;
RECOVER DATABASE UNTIL SEQUENCE $v_seq THREAD 1;
ALTER DATABASE OPEN RESETLOGS;

[email protected] wrote:
just ignore first one like title
Alter database open resetlog is not necessary to open database ?
Regards
kmphttp://download.oracle.com/docs/cd/B19306_01/backup.102/b14191/osrecov.htm#i1007426
About Opening with the RESETLOGS Option
The RESETLOGS option is always required after incomplete media recovery or recovery using a backup control file.
You did not do an incomplete media recovery nor a recovery using a backup control file.

XE11: sysaux & undo tablespaces and files

Hello,
does anyone recognized the mixed names of sysaux and undo tablespaces?
If i use:
SQL> SELECT file_name, tablespace_name, ROUND(bytes/1024000) MB
SQL> FROM dba_data_files
SQL> ORDER BY 1;
then i will get:
FILE_NAME TABLESPACE MB
C:\ORACLEXE\APP\ORACLE\ORADATA\XE\SYSAUX.DBF UNDOTBS1 26
C:\ORACLEXE\APP\ORACLE\ORADATA\XE\SYSTEM.DBF SYSTEM 369
C:\ORACLEXE\APP\ORACLE\ORADATA\XE\UNDOTBS1.DBF SYSAUX 666
C:\ORACLEXE\APP\ORACLE\ORADATA\XE\USERS.DBF USERS 102
The file SYSAUX.DBF points to tablespace UNDOTBS1 and
the file UNDOTBS1.DBF points to tablespace SYSAUX
Could this cause a Problem ?
Can this be solved?
This is only in the windows-version, not in the linux-version.
Best reagrds
AK

Hello,
i did the following:
SQLPLUS:
SHUTDOWN IMMEDIATE;
AS ADMINISTRATOR:
COPY C:\oraclexe\app\oracle\oradata\XE\SYSAUX.DBF C:\oraclexe\app\oracle\oradata\XE\UNDOTBS2.DBF
COPY C:\oraclexe\app\oracle\oradata\XE\UNDOTBS1.DBF C:\oraclexe\app\oracle\oradata\XE\SYSAUX2.DBF
SQLPLUS:
STARTUP MOUNT:
ALTER DATABASE RENAME FILE 'C:\oraclexe\app\oracle\oradata\XE\SYSAUX.DBF' TO 'C:\oraclexe\app\oracle\oradata\XE\UNDOTBS2.DBF';
ALTER DATABASE RENAME FILE 'C:\oraclexe\app\oracle\oradata\XE\UNDOTBS1.DBF' TO 'C:\oraclexe\app\oracle\oradata\XE\SYSAUX2.DBF';
ALTER DATABASE OPEN;
SHUTDOWN IMMEDIATE;
AS ADMINISTRATOR:
COPY C:\oraclexe\app\oracle\oradata\XE\SYSAUX2.DBF C:\oraclexe\app\oracle\oradata\XE\SYSAUX.DBF (overwrite y)
COPY C:\oraclexe\app\oracle\oradata\XE\UNDOTBS2.DBF C:\oraclexe\app\oracle\oradata\XE\UNDOTBS1.DBF (overwrite y)
SQLPLUS:
STARTUP MOUNT:
ALTER DATABASE RENAME FILE 'C:\oraclexe\app\oracle\oradata\XE\SYSAUX2.DBF' TO 'C:\oraclexe\app\oracle\oradata\XE\SYSAUX.DBF';
ALTER DATABASE RENAME FILE 'C:\oraclexe\app\oracle\oradata\XE\UNDOTBS2.DBF' TO 'C:\oraclexe\app\oracle\oradata\XE\UNDOTBS1.DBF';
ALTER DATABASE OPEN;
SHUTDOWN IMMEDIATE;
AS ADMINISTRATOR:
DEL C:\oraclexe\app\oracle\oradata\XE\SYSAUX2.DBF
DEL C:\oraclexe\app\oracle\oradata\XE\UNDOTBS2.DBF
SQLPLUS:
STARTUP
RMAN:
REPORT SCHEMA;
Spooling started in log file: switch.txt
Recovery Manager11.2.0.2.0
RMAN>
Report of database schema for database with db_unique_name XE
List of Permanent Datafiles
===========================
File Size(MB) Tablespace RB segs Datafile Name
1 360 SYSTEM *** C:\ORACLEXE\APP\ORACLE\ORADATA\XE\SYSTEM.DBF
2 650 SYSAUX *** C:\ORACLEXE\APP\ORACLE\ORADATA\XE\SYSAUX.DBF
3 25 UNDOTBS1 *** C:\ORACLEXE\APP\ORACLE\ORADATA\XE\UNDOTBS1.DBF
4 100 USERS *** C:\ORACLEXE\APP\ORACLE\ORADATA\XE\USERS.DBF
List of Temporary Files
=======================
File Size(MB) Tablespace Maxsize(MB) Tempfile Name
1 20 TEMP 32767 C:\ORACLEXE\APP\ORACLE\ORADATA\XE\TEMP.DBF
RMAN>
Recovery Manager complete.
It's not looking elegant but it's working.
Is there a other way?
Best regards.

While dropping the old undo tablespace we get an error

Hello friends ,
i Cannot drop old undo tablespace. While dropping the old undo tablespace we get an error
ERROR at line 1:
ORA-01548: active rollback segment '_SYSSMU77$' found, terminate dropping
tablespace
SQL> select tablespace_name, status, segment_name from dba_rollback_segs where status != 'OFFLINE';
TABLESPACE_NAME STATUS SEGMENT_NAME
SYSTEM ONLINE SYSTEM
APPS_UNDO NEEDS RECOVERY _SYSSMU77$
Please help
Thanks
Edited by: Vicky C on Dec 23, 2012 9:23 AM

Hi peter
We not using rman backup only cold backup.. i tried using cold backup in ramn block media recovery but that recovery needs archive log
RMAN> BLOCKRECOVER DATAFILE 158 BLOCK 48829;
Starting blockrecover at 18-DEC-12
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=437 devtype=DISK
channel ORA_DISK_1: restoring block(s) from datafile copy /var/undo/undo02.dbf
starting media recovery
media recovery failed
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of blockrecover command at 12/18/2012 16:45:11
ORA-00604: error occurred at recursive SQL level 1
ORA-01422: exact fetch returns more than requested number of rows
ORA-00279: change 5975281035000 generated at 12/08/2012 06:00:58 needed for thread 1
ORA-00289: suggestion : /prod/archlogs/1_465484_683651989.dbf
ORA-00280: change 5975281035000 for thread 1 is in sequence #465484
ORA-00278: log file '/prod/archlogs/1_465484_683651989.dbf' no longer needed for this re covery
we did not have block media recovery needed archivelog
Regards
Vignesh C

Error Oracle Mobile ORA-30023 Duplicate undo tablespace specification

Hi,
I have the following mobile application (Oracle Mobile 10g R3):
- Win32 (Forms 6i) App.
- snapshots (12 updateable, 36 read-only)
I have a successfully compilation of my form connected to the mobile database. However when I put a value over a textitem, my WHEN-VALIDATE-ITEM trigger send me an error:
ORA-30023 Duplicate undo tablespace specification
How can I solve this???, It seems like there is a parameter that I have to change.
The WHEN-VALIDATE-ITEM trigger only has a basic select over a "readonly" table.
Please help.
Regards,
Santiago

I think the problem is the following,
I need to convert a date to julian format, example:
to_char(sysdate,'j')
The problem is that it seems like Oracle Mobile connot support this kind format convertion.
So, How can I get the number of days between 01-jan-4712 BC and other date????
I found this function TO_DATE('-4712-01-01', 'SYYYY-MM-DD'), but it doesn´t works on Oracle Mobile.
If someone have any idea about how can I get the number of days between 01-jan-4712 BC and other day without using the format 'SYYYY'......please help

Cannot drop undo tablespace with Active extents but no active sessions

Hi all,
I am running on 10gr2 oracle database in a Linux 32 bit environment.
I have a corrupted undo datafile. I've been able to recover the datafile but still the alert logs is still showing that it is corrupted.
Now what I'm trying to do is to drop the old undo tablespace like the one discussed here Change undo tablespace in Oracle - Switch Oracle's Undo tablespace.
My problem is I have an Active extent but no active session corresponding to it:
SYS@ccasdb AS SYSDBA > SELECT a.name,b.status
FROM   v$rollname a,v$rollstat b
WHERE a.usn = b.usn
AND    a.name IN (
                  SELECT segment_name
                  FROM dba_segments
                  WHERE tablespace_name = 'UNDOTBS1'
                 ); 2    3    4    5    6    7    8
NAME                           STATUS
_SYSSMU18$                     PENDING OFFLINE
SYS@ccasdb AS SYSDBA > SELECT a.name,b.status , d.username , d.sid , d.serial#
2 FROM   v$rollname a,v$rollstat b, v$transaction c , v$session d
3 WHERE a.usn = b.usn
4 AND    a.usn = c.xidusn
5 AND    c.ses_addr = d.saddr
6 AND    a.name IN (
7               SELECT segment_name
8               FROM dba_segments
9               WHERE tablespace_name = 'UNDOTBS1'
10              );
no rows selected
but still cannot drop the undotablespace.
SYS@ccasdb AS SYSDBA > drop tablespace UNDOTBS1 including contents and datafiles;
drop tablespace UNDOTBS1 including contents and datafiles
ERROR at line 1:
ORA-30013: undo tablespace 'UNDOTBS1' is currently in use
Regards,
Tim

Yes i was able to recover the datafile but the alert_log kept on prompting that it is still corrupted. The datafile's status is online.
I want to kill the session/s contributing to the PENDING OFFLINE status of the rollback segment so I can already drop the undotablespace and so
that the alert log will stop prompting for that corrupted datafile in that UNDOTABLESPACE.
Can i Just alter the tablespace's datafiles to offline drop then just drop it. Then I drop the tablespace?

Cannot drop undo tablespace

Hello:
I've created a new undo tablespace undotbs2. I've set it to the default undo tablespace. When I've tried to drop the old one, I get the following error:
SQL> conn / as sysdba
Connected.
SQL> DROP TABLESPACE undotbs1 INCLUDING CONTENTS AND DATAFILES;
DROP TABLESPACE undotbs1 INCLUDING CONTENTS AND DATAFILES
ERROR at line 1: ORA-01548: active rollback segment '_SYSSMU7$' found, terminate dropping tablespace
This is a production database. The service is down because the partition with the Oracle tablespaces: system, undo, temp, etc is full.
After shutting down the database the problem persist: I cannot drop the old undo tablespace because of the same error.
I've followed the note 1321093.1. Here the query results:
Select segment_name, status, tablespace_name, rs.segment_id
from dba_rollback_segs rs
where status not in ('ONLINE','OFFLINE');
_SYSSMU7$ PARTLY AVAILABLE UNDOTBS1 7
SELECT KTUXEUSN, KTUXESLT, KTUXESQN, /* Transaction ID */ KTUXESTA Status, KTUXECFL Flags
FROM x$ktuxe
WHERE ktuxesta !='INACTIVE' AND ktuxeusn =7;
7 47 382687 ACTIVE DEAD
SELECT LOCAL_TRAN_ID,GLOBAL_TRAN_ID,STATE,MIXED,COMMIT# FROM DBA_2PC_PENDING;
No rows
SELECT LOCAL_TRAN_ID,IN_OUT,DATABASE,INTERFACE FROM dba_2pc_neighbors;
No rows
As you can see, there is no pending transactions. No application is connected to the database (service is down), however the database is appling rollbacks since 2 days.
A lot of archivelogs are being created at rolling back (30 GB archivelogs per hour). Here a tail of the alertlog file:
Wed Apr 17 06:19:53 2013
Thread 1 advanced to log sequence 7382
Current log# 5 seq# 7382 mem# 0: /ora2/origlogs/webfrbr/redo05_m1.log
Current log# 5 seq# 7382 mem# 1: /ora3/mirrorlogs/webfrbr/redo05_m2.log
Wed Apr 17 06:21:16 2013
Thread 1 advanced to log sequence 7383
Current log# 6 seq# 7383 mem# 0: /ora2/origlogs/webfrbr/redo06_m1.log
Current log# 6 seq# 7383 mem# 1: /ora3/mirrorlogs/webfrbr/redo06_m2.log
Wed Apr 17 06:22:41 2013
Thread 1 advanced to log sequence 7384
Current log# 4 seq# 7384 mem# 0: /ora2/origlogs/webfrbr/redo04_m1.log
Current log# 4 seq# 7384 mem# 1: /ora3/mirrorlogs/webfrbr/redo04_m2.log
Wed Apr 17 06:24:02 2013
Thread 1 advanced to log sequence 7385
Current log# 5 seq# 7385 mem# 0: /ora2/origlogs/webfrbr/redo05_m1.log
Current log# 5 seq# 7385 mem# 1: /ora3/mirrorlogs/webfrbr/redo05_m2.log
Wed Apr 17 06:25:24 2013
Thread 1 advanced to log sequence 7386
Current log# 6 seq# 7386 mem# 0: /ora2/origlogs/webfrbr/redo06_m1.log
Current log# 6 seq# 7386 mem# 1: /ora3/mirrorlogs/webfrbr/redo06_m2.log
Wed Apr 17 06:26:46 2013
Thread 1 advanced to log sequence 7387
Current log# 4 seq# 7387 mem# 0: /ora2/origlogs/webfrbr/redo04_m1.log
Current log# 4 seq# 7387 mem# 1: /ora3/mirrorlogs/webfrbr/redo04_m2.log
Oracle Database - Enterprise Edition 10.2.0.3
Linux x86-64 Oracle Linux 5
Please, consider the output of the following queries too:
select * from V$FAST_START_TRANSACTIONS
USN 7 -- Undo segment number of the transaction
SLT 47 -- Slot within the rollback segment
SEQ 382687 -- Incarnation number of the slot
STATE RECOVERING --
UNDOBLOCKSDONE 0 -- Number of undo blocks completed on the transaction
UNDOBLOCKSTOTAL 2079151 -- Total number of undo blocks that need recovery
PID 15 -- ID of the current server it has been assigned to
CPUTIME 1153 -- Time for which recovery has progressed (in seconds)
PARENTUSN 0 -- Undo segment number of the parent transaction in PDML
PARENTSLT 0 -- Slot of the parent transaction in PDML
PARENTSEQ 0 -- Sequence number of the parent transaction in PDML
XID 07002F00DFD60500 -- Transaction ID
PXID 0000000000000000 -- Parent transaction ID
RCVSERVERS 1 -- Number of servers used in the last recovery
select * from x$ktuxe where ktuxecfl = 'DEAD';
ADDR 00002B3E808B9BD8
INDX 145
INST_ID 1
KTUXEUSN 7
KTUXESLT 47
KTUXESQN 382687
KTUXERDBF 2
KTUXERDBB 2080076
KTUXESCNB 424110769
KTUXESCNW 0
KTUXESTA ACTIVE
KTUXECFL DEAD
KTUXEUEL 3739
KTUXEDDBF 0
KTUXEDDBB 0
KTUXEPUSN 0
KTUXEPSLT 0
KTUXEPSQN 0
KTUXESIZ 2079151
select * from v$fast_start_servers;
RECOVERING 0 15 07002F00DFD60500
IDLE 0 16 0000000000000000
IDLE 0 17 0000000000000000
IDLE 0 18 0000000000000000
IDLE 0 19 0000000000000000
IDLE 0 20 0000000000000000
IDLE 0 21 0000000000000000
IDLE 0 22 0000000000000000
IDLE 0 25 0000000000000000
IDLE 0 26 0000000000000000
IDLE 0 27 0000000000000000
IDLE 0 28 0000000000000000
IDLE 0 29 0000000000000000
IDLE 0 30 0000000000000000
IDLE 0 31 0000000000000000
IDLE 0 32 0000000000000000
Any ideas to solve this issue?
Thank you in advance
Edited by: albrotar on Apr 17, 2013 1:48 AM
Edited by: albrotar on Apr 17, 2013 1:49 AM
Edited by: albrotar on Apr 17, 2013 1:51 AM
Edited by: albrotar on Apr 17, 2013 1:52 AM
Edited by: albrotar on Apr 17, 2013 1:54 AM

I've found some errors in alert log file occurred at shutting down the database:
+...+
Control autobackup written to DISK device
handle '/orabck/rman/webfrbr/ora_cfc-3587726327-20130414-00'
Completed: CREATE UNDO TABLESPACE undotbs2 DATAFILE '/orabck/undo/undotbs02.dbf'
SIZE 500M reuse autoextend ON NEXT 5M maxsize 32767M
Sun Apr 14 15:46:43 2013
Successfully onlined Undo Tablespace 5.
Undo Tablespace 1 moved to Pending Switch-Out state.
*** active transactions found in undo tablespace 1 during switch-out.
Sun Apr 14 15:46:44 2013
ALTER SYSTEM SET undo_tablespace='UNDOTBS2' SCOPE=BOTH;
Sun Apr 14 16:11:42 2013
ALTER ROLLBACK SEGMENT "_SYSSMU7$" offLINE
Sun Apr 14 16:11:42 2013
Completed: ALTER ROLLBACK SEGMENT "_SYSSMU7$" offLINE
Sun Apr 14 16:12:36 2013
DROP TABLESPACE undotbs1 INCLUDING CONTENTS AND DATAFILES
Sun Apr 14 16:12:36 2013
+...+
Thread 1 advanced to log sequence 5107
Current log# 4 seq# 5107 mem# 0: /ora2/origlogs/webfrbr/redo04_m1.log
Current log# 4 seq# 5107 mem# 1: /ora3/mirrorlogs/webfrbr/redo04_m2.log
Sun Apr 14 19:00:28 2013
Stopping background process CJQ0
Sun Apr 14 19:00:29 2013
Stopping background process QMNC
Sun Apr 14 19:00:31 2013
Stopping background process MMNL
Sun Apr 14 19:00:32 2013
Stopping background process MMON
Sun Apr 14 19:00:34 2013
Shutting down instance (immediate)
License high water mark = 31
Sun Apr 14 19:00:34 2013
Stopping Job queue slave processes
Sun Apr 14 19:00:34 2013
Job queue slave processes stopped
All dispatchers and shared servers shutdown
Sun Apr 14 19:00:42 2013
ALTER DATABASE CLOSE NORMAL
Sun Apr 14 19:04:28 2013
+...+
Thread 1 advanced to log sequence 5118
Current log# 6 seq# 5118 mem# 0: /ora2/origlogs/webfrbr/redo06_m1.log
Current log# 6 seq# 5118 mem# 1: /ora3/mirrorlogs/webfrbr/redo06_m2.log
Sun Apr 14 20:11:21 2013
Errors in file /ora1/admin/webfrbr/bdump/webfrbr_smon_4629.trc:
+ORA-07445: exception encountered: core dump [_intel_fast_memcpy.A()+10] [SIGSEGV] [Invalid permissions for mapped object] [0x2B6B66003000] [] []+*
Sun Apr 14 20:11:21 2013
Errors in file /ora1/admin/webfrbr/bdump/webfrbr_smon_4629.trc:
ORA-00600: internal error code, arguments: [999], [0x107C14015], [], [], [], [], [], []*
+ORA-07445: exception encountered: core dump [_intel_fast_memcpy.A()+10] [SIGSEGV] [Invalid permissions for mapped object] [0x2B6B66003000] [] []+*
Sun Apr 14 20:11:22 2013
+...+
Sun Apr 14 20:11:48 2013
Errors in file /ora1/admin/webfrbr/bdump/webfrbr_pmon_4617.trc:
ORA-00474: SMON process terminated with error
Sun Apr 14 20:11:48 2013
+...+
The instance could start up, but after this, it is recovering undo and generating redo since 2 days

Drop Undo Tablespace taking more than 1 hr

Hi,
To give you background, I had given an "insert into .. select" command which was inserting 3 millions of rows of rowidth approx 5000 bytes. The window on which it was given, was closed by mistake.
After sometime when I checked the size of undo_tablespace, it was 5.5GB. I decided to create a new one and drop the old undo_tbsp.
I have successfully created new undo tablespace and changed the same in spfile also.
now when i am dropping the old undo tablespace, its taking long time. its almost an hour, but the tablespace has not been dropped yet.
I have given following command
drop tablespace undotbs_01 including contents;
Any idea, why is it taking so much time, and how long should I wait?
If someone can give me any other idea on how can I drop the tablespace, that will be great.
Regards,
Archana.

To give you background, I had given an "insert into .. select" command which was inserting 3 millions of rows of rowidth approx 5000 bytes. The window on which it was given, was closed by mistake.This could be the cause.
I wonder the killed/closed session doesn't hangup with a latch or lock.
Since the old undo tbs had active transaction, it might have to pending offline status. If so, you can drop it.
Jaffar

Undo tablespace issue

Hello,
I have a question regarding undo tablespace utilization. Currently there are no active transactions, all previous transactions have been commited, there is only one user session on my test database, undo retention is set to 900. I am trying to drop the old undo tablespace (I have created a new one, and switched to it - alter system undo_tablespace= new_undo;) but I get ORA-30013: undo tablespace 'old_undo' is currently in use.
I have bounced the database, but made no progress. dba_undo_extents stiil have active segments from the old_undo and dba_rollback_segs indicate there are two online segments from the old_undo.
Why is the old undo being used? WHo is using it?
Thank you and
Rgds

SQL> SELECT * FROM V$VERSION;
BANNER
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
PL/SQL Release 11.2.0.1.0 - Production
CORE 11.2.0.1.0 Production
TNS for Linux: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - Production
SQL> select distinct status, segment_name, tablespace_name from dba_undo_extents where status='ACTIVE';
STATUS SEGMENT_NAME TABLESPACE_NAME
ACTIVE SYSSMU112241730627$ UNDOTBS8
ACTIVE SYSSMU161513093487$ UNDOTBS8
SQL> show parameter undo
NAME TYPE VALUE
undo_management string AUTO
undo_retention integer 900
undo_tablespace string UNDOTBS11
Thanks!

Why do 2 diff. undo tablespace required in RAC

Hi -
1 - I can understand that we do require 2 diff. log files as 2 process can not write on the same redo log files.
But I could not understand the logic of using 2 diff. undo tablespaces, when tablespaces can be in shared mode.
They what is the reason of using 2, why can we not have only one undo tablespace in RAC.
2 - Is there any way to check if one particular instance is running under RAC, Can this be confirmed if instance
has got extra process like Lms Lmd ...
your help would be appreciated and apologies for my poor english.
Regards,
Lyxx

Each instance needs its own rollback segments to manage read consistency.
When you set undo_tablespace=UNDOTBS, you tell the instance to self manage the tablespace UNDOTBS and do dynamic creation of rollback segments.
This management of undo tablespaces is not "instance shareable". That's why you need 2 undo tablespace (for a 2 node RAC).
If it's a problem for your environment (don't know why), you can create a single "rollback tablespace" and manage yourself the rollback segments.
Christophe
Edited by: willier on 11 sept. 2008 02:44

Can't create new undo tablespace while undo tablespace is crushed

We currently encounter an emergent error on our productive database. The undo tablespace on this database looks like crushed. And insert /update operations can't be executed because of the undo tablespace error.
we tried to create a new undo tablespace to replace this broken tablespace, but the database reports ORA-00376 and ORA-00376 error.
We have already deleted rollback segments which status is "NEED RECOVERY".
Now we run our database in manual undo tablespace management mode. and add a new datafile into current broken undo tablespace. Then create a new rollback segment for public user. Now, user can insert /update data. But we are not sure if this method would occur any other problems.
I really appreciate if you have any good suggestions.

Hi,
Actually ORA-00376 is the following cause and take action.
cause: An attempt was made to read from a file that is not readable. Most likely the file is offline.
Action: Check the state of the file. Bring it online.
Again setup ur DB automatic UNDO MANAGEMENT and check status of the ur undo tablespace. and bring it online.
and create another undo tablespac and switching the undo tablespace.
Regards..

SQL Statement using Undo Tablespace

Hi
Is there a way to find out which SQL Statement is using the highest amount of Undo Tablespace ?

Query v$undostat.
Use column "MAXQUERYID" for identgifying long running queries.
Refer Metalink Note 262066.1 for undo information.
Regards
Sethu

Help Dropping Undo Tablespace

Guys,
I want to create a new undo tablespace and drop the old one.
I followed the below steps, but could not drop it
create undo tablespace UNDOTBS datafile '/ora01/oradata/DEVTDB/undotbs.dbf' size 100m AUTOEXTEND ON MAXSIZE 5G;
alter system set undo_tablespace=UNDOTBS scope=both;
alter tablespace UNDOTBS1 offline; -- this was successful
DROP TABLESPACE UNDOTBS1 INCLUDING CONTENTS AND DATAFILES CASCADE CONSTRAINTS;
-- Last command threw the following error:
ORA-01548: active rollback segment '_SYSSMU6$' found, terminate dropping tablespace
I am using oracle 10.2.0.4G on Linux Redhat.
Any help is appreciated.
Thanks!

Charlov wrote:
Guys,
I want to create a new undo tablespace and drop the old one.
I followed the below steps, but could not drop it
create undo tablespace UNDOTBS datafile '/ora01/oradata/DEVTDB/undotbs.dbf' size 100m AUTOEXTEND ON MAXSIZE 5G;
alter system set undo_tablespace=UNDOTBS scope=both;
alter tablespace UNDOTBS1 offline; -- this was successful
DROP TABLESPACE UNDOTBS1 INCLUDING CONTENTS AND DATAFILES CASCADE CONSTRAINTS;
-- Last command threw the following error:
ORA-01548: active rollback segment '_SYSSMU6$' found, terminate dropping tablespace
I am using oracle 10.2.0.4G on Linux Redhat.
Any help is appreciated.
Thanks!Hi,
I think you need to wait until there's no active rollback segments in the old undotbs before you can drop it. You can also restart the instance to force Oracle to release the old undotbs.
HtH
//Johan

Regarding Maxsize of Undo Tablespace

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