UNDO tablespace initial dimension
Hi, I have installed Oracle XE Beta 2 on a Windows XP Professional pc: the percentage of the UNDO tablespace is 94,64%, and I have done no relevant operation on the db, is this ok?
Thanks,
Gianluca
Sorry. I mis-read the question. You're looking in HTML DB and your undo is at 94.64%?
When you say "no relevant operation", do you mean since creation? It sounds like you've done something. The 94.64% could still be completely normal but shouldn't be on a fresh install
Post the stats from that htmldb screen, i.e. user, undo and system tablespace sizes (used and free).
Thanks,
LewisC
http://blogs.ittoolbox.com/oracle/guide/
Similar Messages
-
TEST -- Active Undo Tablespace Drop
TEST
SUMMARY:-
When no active transactions are in UNDO tablespace, I can offline the undo datafile and subsequently drop the tablespace. No problems there.
Active Undo transactions combined with SHUTDOWN ABORT , I cannot open the database?
*****************SCREEN OUTPUT ************************
SQL>alter system set undo_tablespace='undotbs2' scope=spfile;
SQL> update mytst set table_name='jj';
1 row updated.
From another x-session I issued shutdown abort.
$mv undotbs02.dbf zz_undotbs02.dbf -- SImulate failure
SQL>ALTER DATABASE DATAFILE '/u02/app/oracle/oradata/HLCL/undotbs02.dbf' OFFLINE DROP ;
Database altered.
When i try to open the DB it gives
SQL> alter database open;
alter database open
ERROR at line 1:
ORA-01092: ORACLE instance terminated. Disconnection forced
I tried to trace the error:-
alter system set "_smu_debug_mode"=1 scope=spfile;
alter system set event = "10015 trace name context forever, level 10" scope=spfile;
No pertinent information in trace file is generated either. Any pointers.ARC0: STARTING ARCH PROCESSES COMPLETE
ARC0: Becoming the 'no FAL' ARCH
ARC0: Becoming the 'no SRL' ARCH
ARC0: Becoming the heartbeat ARCH
ARC1 started with pid=17, OS id=4502
Thu Jun 22 17:58:28 2006
Errors in file /u02/app/oracle/admin/HLCL/udump/hlcl_ora_4498.trc:
ORA-00704: bootstrap process failure
ORA-00604: error occurred at recursive SQL level 2
ORA-00376: file 6 cannot be read at this time
ORA-01110: data file 6: '/u02/app/oracle/oradata/HLCL/undotbs02.dbf'
Thu Jun 22 17:58:28 2006
Error 704 happened during db open, shutting down database
USER: terminating instance due to error 704
Instance terminated by USER, pid = 4498
ORA-1092 signalled during: ALTER DATABASE OPEN...
/u02/app/oracle/admin/HLCL/udump/hlcl_ora_4498.trc:
Hash table buckets = 32768
Longest hash chain = 0
Average hash chain = 0/0 = 0.0
Max compares per lookup = 0
Avg compares per lookup = 0/0 = 0.0
tkcrrsarc: (WARN) Failed to find ARCH for message (message:0x1)
tkcrrpa: (WARN) Failed initial attempt to send ARCH message (message:0x1)
ORA-00704: bootstrap process failure
ORA-00604: error occurred at recursive SQL level 2
ORA-00376: file 6 cannot be read at this time
ORA-01110: data file 6: '/u02/app/oracle/oradata/HLCL/undotbs02.dbf'
Thanks for looking. -
Undo Tablespace ..Is it the most important part of recovery
I just got a doubt
Redologs files are filles with COMMITED AND UNCOMMTTED transactions and archived assume archive log
ORacle uses undo tablespace to rollback the uncommited transactions
What happens if we loose undo tablespace?
sunday i took full backup...
after eactly one menoth i take another full backup meant time somewhere in the middle of the month i database crashes and also undo tablespace lost
how ill oracle recover in this scenario
Message was edited by:
Maran ViswarayarIn your sceniario, you have a Big problem here. Without a proper backup of your undo tablespace, you are going to suffer data loss if there're active undo segments.
Check Metalink Doc ID: Note:28812.1
Rollback Segment Needs Recovery
You need to drop all objects to release active undo segments.
There's a work around floating around like list all corrupted rollback segment in undocumented initial parameter
*._corrupt_rollback_segments=”_SYSSMU29$” I won't recommended this method , because it didn't fix the problem. It validated uncommited data. -
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 -
Rollback segments using UNDO Tablespace?
First, I created a database for a vendor with an Undo Tablespace UNDOTBS. Then the vendor requested me to create rollback segments instead. So I created a new tablespace RBSTBS just to hold these segments. When I tried to create the rollback segment using the newly created tablespace RBSTBS, it complained that I am not allowed to use non-system tablespaces.
So instead, I used the Undo tablespace UNDOTBS to hold the rollback segment. It worked.
Am I really allowed to use the UNDO tablespace to hold rollback segments? Can't I use normal tablespaces for rollback segments?
Another thing, the vendor wanted me to create rollback segments of 200MB each. Where do I set this while creating the rollback segment? Is this the INITIAL, NEXT, or OPTIMAL size?
I know that Oracle recommends using UNDO rather than rollback segments. Is there any advantage in using traditional rollback segments?
Thanks for any help!Advantage with rollback segment is you can force your transaction to use any specific rollback segment, where as with undo you don't have any control. Oracle does it for us.
Thanks and Regards,
Satheesh Babu.S
Bangalore. -
Insert as select - why is it writing so much Undo tablespace data?
Environment: Oracle 10g R2, Sun solaris, ASM
I have table A with 92 million rows. Table B, which is identical to table A, has 5 million rows. Table A only has three index columns ( no composite indexes ) and the average row length is 109 bytes.
I issued the command: insert into A select * from B; in order to append the rows from B to A. This command has been executing for over 4 hours. I've been watching the tablespace usage in EM and I can see the undo tablespace usage grow to over 9 GB's and the query is not finished. Meanwhile, the index tablespace has not grown at all. There is no other activity on this instance.
I've performed similar inserts in the past and it hasn't taken nearly this long. According to my calculations, writing all of the 5 million rows to Undo would only require about half a gig. Also, we thought there might be a 'ghost' session or process that was causing problems earlier, so we shut everything down and rebooted the server. There is no other activity.
Could anyone explain why it would write so much undo data? It's almost as if Oracle is making a copy of table A ( 92 million rows ) first.
Thanks,
BAHThanks, based on the information from the last two posts, maybe it's starting to make sense. Here is the table ( the column names have been changed to protect the innocent...)
TABLE A=
col1 NUMBER not null,
col2 NUMBER,
col3 VARCHAR2(15),
col4 NUMBER,
col5 NUMBER,
col6 FLOAT,
col7 FLOAT,
col8 FLOAT,
col9 FLOAT,
col10 FLOAT,
col11 FLOAT,
col12 FLOAT,
col13 FLOAT,
col14 NUMBER,
col15 NUMBER,
col16 NUMBER,
col17 FLOAT,
col18 FLOAT,
col19 FLOAT,
col20 NUMBER,
col21 NUMBER,
col22 FLOAT,
col23 NUMBER(17,2),
col24 NUMBER(17,2),
col25 NUMBER(13,5),
col26 NUMBER(13,5),
col27 NUMBER(13,5),
col28 NUMBER(13,5),
col29 NUMBER(13,5),
col30 VARCHAR2(1),
col31 VARCHAR2(1),
col32 VARCHAR2(1),
col33 NUMBER
pctfree 10
initrans 1
maxtrans 255
storage
initial 64K
minextents 1
maxextents unlimited
Column 1 is indexed as the primary key. Columns 2 and 3 have separate indexes. I was not aware of the 'Append' hint - so thanks for that. In researching, I found that if you use the append hint, it places all the rows above the HWM. If not, it looks for places within the tablespace. So, based on the info in post #3, perhaps it is writing all of the used blocks out to undo that are being modified with the insert? My calculation was straight forward ( 109 bytes for row length * 5 million rows ). I knew there would be some overhead, but the undo ts is now over 13.3 GB.
Thanks for the info. -
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 AMHi 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 -
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 -
Undo tablespace recovery from RMAN backup
Hi,
Lets's assume we have RMAN backup and archivelog backups, and now
my undo tablespace's disk crashed ,how can i recover?
Can i recover while database is up?
Thanks,
Kumar.to recover UNDO tablespace from RMAN backup you must shutdown the database and start it in the MOUNT state to recover the missing files as follows
rman target /
RUN
STARTUP MOUNT;
ALLOCATE CHANNEL ch3 TYPE Disk;
RESTORE datafile 'c:\u01\prod3\undo01.dbf';
RECOVER datafile 'c:\u01\prod3\undo01.dbf';
ALTER DATABASE OPEN;
RELEASE CHANNEL ch3;
hope this will help you -
Hi!
I have been having problems for the past couple days with restarting my database. For some reason when I shutdown, once I start it up again the undo tablespaces is offline and needs to be recovered. When the application tries to connect to the database it gives a "ora-01552 : cannot use system rollback segment for non-system tablespace." I do a recover on that tablespace and bring it back up, and it works fine... until the next restart.. Would anyone have an idea on what's the problem, and what I can do to fix it once and for all?
Thanks
Yazil Santoyodid you try metalink, there are lot of options / suggestions for your particular error.
Is your database in Auto undo mode or manual undo?
Thanks
Gopal -
ORA-30012: undo tablespace 'UNDOTBS' does not exist or of wrong type
OS Version : AIX 6.1
DB Version : 11.2.0.1
I am duplicating database and got below error:
contents of Memory Script:
Alter clone database open resetlogs;
executing Memory Script
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-00601: fatal error in recovery manager
RMAN-03004: fatal error during execution of command
RMAN-10041: Could not re-create polling channel context following failure.
RMAN-10024: error setting up for rpc polling
RMAN-10005: error opening cursor
RMAN-10002: ORACLE error: ORA-03114: not connected to ORACLE
RMAN-03002: failure of Duplicate Db command at 02/16/2013 17:20:02
RMAN-03015: error occurred in stored script Memory Script
RMAN-06136: ORACLE error from auxiliary database: ORA-01092: ORACLE instance terminated. Disconnection forced
ORA-30012: undo tablespace 'UNDOTBS' does not exist or of wrong type
Process ID: 44040326
Session ID: 65 Serial number: 3
Error is because in target database undo tablespace is UNDOTBS_NEW and in auxiliary database undo tablespace name in init file is UNDOTBS. I followed the meatlink doc 433992.1 which suggest following steps to recover from above error:
1) edit the parameter UNDO_MANAGEMENT to "MANUAL"
2) start database again
3) drop the UNDO tablespace
4) recreate UNDO tablespace which matches to name in init file.
5) shutdown & start DB again.
Now, i edited init file and tried to start DB and got following error:
oracore@cph-core-db01-s $ sqlplus /nolog
SQL*Plus: Release 11.2.0.1.0 Production on Sat Feb 16 17:22:11 2013
Copyright (c) 1982, 2009, Oracle. All rights reserved.
SQL> conn sys as sysdba
Enter password:
Connected to an idle instance.
SQL> startup
ORACLE instance started.
Total System Global Area 4275781632 bytes
Fixed Size 2213632 bytes
Variable Size 822085888 bytes
Database Buffers 3439329280 bytes
Redo Buffers 12152832 bytes
Database mounted.
ORA-01113: file 1 needs media recovery
ORA-01110: data file 1: '/u04/oradata/CORE/CORE_DUP/system01.dbf'I don't want to run duplicate command with correct UNDO tablespace name. Any other work around for this ?STARTUP MOUNT
RECOVER DATABASE USING BACKUP CONTROLFILE UNTIL CANCEL
CANCEL
ALTER DATABASE OPEN RESETLOGS
Above option is not working for CORE_DUP, i am getting very strange error, while trying to recover i am getting very strange error as below:
oracore@cph-core-db01-s $ export ORACLE_SID=CORE_DUP
SQL*Plus: Release 11.2.0.1.0 Production on Mon Feb 18 11:17:25 2013
Copyright (c) 1982, 2009, Oracle. All rights reserved.
SQL> conn sys as sysdba
Enter password:
Connected to an idle instance.
SQL> startup mount
ORACLE instance started.
Total System Global Area 4275781632 bytes
Fixed Size 2213632 bytes
Variable Size 822085888 bytes
Database Buffers 3439329280 bytes
Redo Buffers 12152832 bytes
Database mounted.
SQL> alter database open resetlogs;
alter database open resetlogs
ERROR at line 1:
ORA-01139: RESETLOGS option only valid after an incomplete database recovery
SQL> recover database using backup controlfile until cancel;
ORA-00283: recovery session canceled due to errors
ORA-16433: The database must be opened in read/write mode.Primary database initfile:
event="10298 trace name context forever, level 32"
db_block_size=8192
db_file_multiblock_read_count=16
open_cursors=300
db_name=CORE
cursor_sharing='SIMILAR'
global_names=FALSE
diagnostic_dest=/u01/app/oracore/diag/CORE
#background_dump_dest=/u01/app/oracore/diag/rdbms/bdump
#core_dump_dest=/u01/app/oracore/diag/rdbms/cdump
#user_dump_dest=/u01/app/oracore/diag/rdbms/udump
control_files=("/u01/oradata/CORE/control01.ctl", "/u02/oradata/CORE/control02.ctl", "/u03/oradata/CORE/control03.ctl")
log_archive_dest_1='LOCATION=/u05/oradata/CORE/'
log_archive_format='CORE_%s%t%r.ARC'
job_queue_processes=10
compatible=11.2.0.1
processes=150
fast_start_mttr_target=300
filesystemio_options='SETALL'
pga_aggregate_target=500M
recyclebin='OFF'
remote_login_passwordfile='EXCLUSIVE'
session_cached_cursors=100
sga_target=4G
undo_management='AUTO'
undo_tablespace='UNDOTBS_NEW'
nls_date_format='DD-MON-RRRR'
nls_length_semantics='CHAR'initfile for CORE_DUP
event="10298 trace name context forever, level 32"
db_block_size=8192
db_file_multiblock_read_count=16
open_cursors=300
db_name=CORE_DUP
cursor_sharing='SIMILAR'
global_names=FALSE
diagnostic_dest=/u01/app/oracore/diag/CORE/CORE_DUP
control_files=("/u01/oradata/CORE/CORE_DUP/control01.ctl", "/u02/oradata/CORE/CORE_DUP/control02.ctl", "/u03/oradata/CORE/CORE_DUP/control03.ctl")
log_archive_dest_1='LOCATION=/u05/oradata/CORE/CORE_DUP/'
log_archive_format='CORE_DUP%s%t%r.ARC'
job_queue_processes=10
compatible=11.2.0.1
_compression_compatibility="11.2.0"
processes=150
fast_start_mttr_target=300
filesystemio_options='SETALL'
pga_aggregate_target=500M
recyclebin='OFF'
remote_login_passwordfile='EXCLUSIVE'
session_cached_cursors=100
sga_target=4G
undo_management='AUTO'
undo_tablespace='UNDOTBS'
nls_date_format='DD-MON-RRRR'
nls_length_semantics='CHAR'
log_file_name_convert='/CORE','/CORE/CORE_DUP'
db_file_name_convert='/CORE','/CORE/CORE_DUP'Duplicate steps are as:
oracore@cph-core-db01-s $ rman target sys/zzzz@core catalog rmantst10/zzzzz@catdb auxiliary /
Recovery Manager: Release 11.2.0.1.0 - Production on Mon Feb 18 15:50:00 2013
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
connected to target database: CORE (DBID=913972022)
connected to recovery catalog database
connected to auxiliary database: CORE_DUP (not mounted)
RMAN> duplicate target database to CORE_DUP;
Starting Duplicate Db at 18-FEB-13
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: SID=96 device type=DISK
allocated channel: ORA_AUX_DISK_2
channel ORA_AUX_DISK_2: SID=127 device type=DISK
contents of Memory Script:
sql clone "create spfile from memory";
executing Memory Script
sql statement: create spfile from memory
contents of Memory Script:
shutdown clone immediate;
startup clone nomount;
executing Memory Script
Oracle instance shut down
connected to auxiliary database (not started)
Oracle instance started
Total System Global Area 4275781632 bytes
Fixed Size 2213632 bytes
Variable Size 838863104 bytes
Database Buffers 3422552064 bytes
Redo Buffers 12152832 bytes
contents of Memory Script:
sql clone "alter system set db_name =
''CORE'' comment=
''Modified by RMAN duplicate'' scope=spfile";
sql clone "alter system set db_unique_name =
''CORE_DUP'' comment=
''Modified by RMAN duplicate'' scope=spfile";
shutdown clone immediate;
startup clone force nomount
restore clone primary controlfile;
alter clone database mount;
executing Memory Script
sql statement: alter system set db_name = ''CORE'' comment= ''Modified by RMAN duplicate'' scope=spfile
sql statement: alter system set db_unique_name = ''CORE_DUP'' comment= ''Modified by RMAN duplicate'' scope=spfile
Oracle instance shut down
Oracle instance started
Total System Global Area 4275781632 bytes
Fixed Size 2213632 bytes
Variable Size 838863104 bytes
Database Buffers 3422552064 bytes
Redo Buffers 12152832 bytes
Starting restore at 18-FEB-13
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: SID=96 device type=DISK
allocated channel: ORA_AUX_DISK_2
channel ORA_AUX_DISK_2: SID=127 device type=DISK
channel ORA_AUX_DISK_1: starting datafile backup set restore
channel ORA_AUX_DISK_1: restoring control file
channel ORA_AUX_DISK_1: reading from backup piece /oraclebackup/CORE/DF_L1_CORE_16022013_5fo246k3_175_1
channel ORA_AUX_DISK_1: piece handle=/oraclebackup/CORE/DF_L1_CORE_16022013_5fo246k3_175_1 tag=LEVEL1
channel ORA_AUX_DISK_1: restored backup piece 1
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:03
output file name=/u01/oradata/CORE/CORE_DUP/control01.ctl
output file name=/u02/oradata/CORE/CORE_DUP/control02.ctl
output file name=/u03/oradata/CORE/CORE_DUP/control03.ctl
Finished restore at 18-FEB-13
database mounted
contents of Memory Script:
set until scn 1217601;
set newname for datafile 1 to
"/u04/oradata/CORE/CORE_DUP/system01.dbf";
set newname for datafile 2 to
"/u04/oradata/CORE/CORE_DUP/sysaux01.dbf";
set newname for datafile 4 to
"/u04/oradata/CORE/CORE_DUP/users01.dbf";
set newname for datafile 5 to
"/u04/oradata/CORE/CORE_DUP/users02.dbf";
set newname for datafile 6 to
"/u04/oradata/CORE/CORE_DUP/users03.dbf";
set newname for datafile 9 to
"/u04/oradata/CORE/CORE_DUP/undotbs_new01.dbf";
restore
clone database
executing Memory Script
executing command: SET until clause
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
Starting restore at 18-FEB-13
using channel ORA_AUX_DISK_1
using channel ORA_AUX_DISK_2
channel ORA_AUX_DISK_1: starting datafile backup set restore
channel ORA_AUX_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_AUX_DISK_1: restoring datafile 00004 to /u04/oradata/CORE/CORE_DUP/users01.dbf
channel ORA_AUX_DISK_1: restoring datafile 00005 to /u04/oradata/CORE/CORE_DUP/users02.dbf
channel ORA_AUX_DISK_1: restoring datafile 00006 to /u04/oradata/CORE/CORE_DUP/users03.dbf
channel ORA_AUX_DISK_1: reading from backup piece /oraclebackup/CORE/DF_L0_CORE_16022013_55o246fe_165_1
channel ORA_AUX_DISK_2: starting datafile backup set restore
channel ORA_AUX_DISK_2: specifying datafile(s) to restore from backup set
channel ORA_AUX_DISK_2: restoring datafile 00001 to /u04/oradata/CORE/CORE_DUP/system01.dbf
channel ORA_AUX_DISK_2: restoring datafile 00002 to /u04/oradata/CORE/CORE_DUP/sysaux01.dbf
channel ORA_AUX_DISK_2: restoring datafile 00009 to /u04/oradata/CORE/CORE_DUP/undotbs_new01.dbf
channel ORA_AUX_DISK_2: reading from backup piece /oraclebackup/CORE/DF_L0_CORE_16022013_56o246fe_166_1
channel ORA_AUX_DISK_2: piece handle=/oraclebackup/CORE/DF_L0_CORE_16022013_56o246fe_166_1 tag=LEVEL0
channel ORA_AUX_DISK_2: restored backup piece 1
channel ORA_AUX_DISK_2: restore complete, elapsed time: 00:01:15
channel ORA_AUX_DISK_1: piece handle=/oraclebackup/CORE/DF_L0_CORE_16022013_55o246fe_165_1 tag=LEVEL0
channel ORA_AUX_DISK_1: restored backup piece 1
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:01:35
Finished restore at 18-FEB-13
contents of Memory Script:
switch clone datafile all;
executing Memory Script
datafile 1 switched to datafile copy
input datafile copy RECID=24 STAMP=807724355 file name=/u04/oradata/CORE/CORE_DUP/system01.dbf
datafile 2 switched to datafile copy
input datafile copy RECID=25 STAMP=807724355 file name=/u04/oradata/CORE/CORE_DUP/sysaux01.dbf
datafile 4 switched to datafile copy
input datafile copy RECID=26 STAMP=807724356 file name=/u04/oradata/CORE/CORE_DUP/users01.dbf
datafile 5 switched to datafile copy
input datafile copy RECID=27 STAMP=807724356 file name=/u04/oradata/CORE/CORE_DUP/users02.dbf
datafile 6 switched to datafile copy
input datafile copy RECID=28 STAMP=807724356 file name=/u04/oradata/CORE/CORE_DUP/users03.dbf
datafile 9 switched to datafile copy
input datafile copy RECID=29 STAMP=807724356 file name=/u04/oradata/CORE/CORE_DUP/undotbs_new01.dbf
contents of Memory Script:
set until scn 1217601;
recover
clone database
delete archivelog
executing Memory Script
executing command: SET until clause
Starting recover at 18-FEB-13
using channel ORA_AUX_DISK_1
using channel ORA_AUX_DISK_2
channel ORA_AUX_DISK_1: starting incremental datafile backup set restore
channel ORA_AUX_DISK_1: specifying datafile(s) to restore from backup set
destination for restore of datafile 00001: /u04/oradata/CORE/CORE_DUP/system01.dbf
destination for restore of datafile 00002: /u04/oradata/CORE/CORE_DUP/sysaux01.dbf
destination for restore of datafile 00009: /u04/oradata/CORE/CORE_DUP/undotbs_new01.dbf
channel ORA_AUX_DISK_1: reading from backup piece /oraclebackup/CORE/DF_L1_CORE_16022013_5eo246k2_174_1
channel ORA_AUX_DISK_2: starting incremental datafile backup set restore
channel ORA_AUX_DISK_2: specifying datafile(s) to restore from backup set
destination for restore of datafile 00004: /u04/oradata/CORE/CORE_DUP/users01.dbf
destination for restore of datafile 00005: /u04/oradata/CORE/CORE_DUP/users02.dbf
destination for restore of datafile 00006: /u04/oradata/CORE/CORE_DUP/users03.dbf
channel ORA_AUX_DISK_2: reading from backup piece /oraclebackup/CORE/DF_L1_CORE_16022013_5do246k2_173_1
channel ORA_AUX_DISK_1: piece handle=/oraclebackup/CORE/DF_L1_CORE_16022013_5eo246k2_174_1 tag=LEVEL1
channel ORA_AUX_DISK_1: restored backup piece 1
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:01
channel ORA_AUX_DISK_2: piece handle=/oraclebackup/CORE/DF_L1_CORE_16022013_5do246k2_173_1 tag=LEVEL1
channel ORA_AUX_DISK_2: restored backup piece 1
channel ORA_AUX_DISK_2: restore complete, elapsed time: 00:00:01
starting media recovery
archived log for thread 1 with sequence 1718 is already on disk as file /u05/oradata/CORE/CORE_17181807276264.ARC
archived log for thread 1 with sequence 1719 is already on disk as file /u05/oradata/CORE/CORE_17191807276264.ARC
archived log for thread 1 with sequence 1720 is already on disk as file /u05/oradata/CORE/CORE_17201807276264.ARC
archived log for thread 1 with sequence 1721 is already on disk as file /u05/oradata/CORE/CORE_17211807276264.ARC
archived log for thread 1 with sequence 1722 is already on disk as file /u05/oradata/CORE/CORE_17221807276264.ARC
archived log for thread 1 with sequence 1723 is already on disk as file /u05/oradata/CORE/CORE_17231807276264.ARC
archived log for thread 1 with sequence 1724 is already on disk as file /u05/oradata/CORE/CORE_17241807276264.ARC
archived log for thread 1 with sequence 1725 is already on disk as file /u05/oradata/CORE/CORE_17251807276264.ARC
archived log for thread 1 with sequence 1726 is already on disk as file /u05/oradata/CORE/CORE_17261807276264.ARC
archived log for thread 1 with sequence 1727 is already on disk as file /u05/oradata/CORE/CORE_17271807276264.ARC
archived log for thread 1 with sequence 1728 is already on disk as file /u05/oradata/CORE/CORE_17281807276264.ARC
archived log for thread 1 with sequence 1729 is already on disk as file /u05/oradata/CORE/CORE_17291807276264.ARC
archived log for thread 1 with sequence 1730 is already on disk as file /u05/oradata/CORE/CORE_17301807276264.ARC
archived log for thread 1 with sequence 1731 is already on disk as file /u05/oradata/CORE/CORE_17311807276264.ARC
archived log for thread 1 with sequence 1732 is already on disk as file /u05/oradata/CORE/CORE_17321807276264.ARC
archived log for thread 1 with sequence 1733 is already on disk as file /u05/oradata/CORE/CORE_17331807276264.ARC
archived log for thread 1 with sequence 1734 is already on disk as file /u05/oradata/CORE/CORE_17341807276264.ARC
archived log for thread 1 with sequence 1735 is already on disk as file /u05/oradata/CORE/CORE_17351807276264.ARC
archived log for thread 1 with sequence 1736 is already on disk as file /u05/oradata/CORE/CORE_17361807276264.ARC
archived log for thread 1 with sequence 1737 is already on disk as file /u05/oradata/CORE/CORE_17371807276264.ARC
archived log for thread 1 with sequence 1738 is already on disk as file /u05/oradata/CORE/CORE_17381807276264.ARC
archived log for thread 1 with sequence 1739 is already on disk as file /u05/oradata/CORE/CORE_17391807276264.ARC
archived log for thread 1 with sequence 1740 is already on disk as file /u05/oradata/CORE/CORE_17401807276264.ARC
archived log for thread 1 with sequence 1741 is already on disk as file /u05/oradata/CORE/CORE_17411807276264.ARC
archived log for thread 1 with sequence 1742 is already on disk as file /u05/oradata/CORE/CORE_17421807276264.ARC
archived log for thread 1 with sequence 1743 is already on disk as file /u05/oradata/CORE/CORE_17431807276264.ARC
archived log for thread 1 with sequence 1744 is already on disk as file /u05/oradata/CORE/CORE_17441807276264.ARC
channel ORA_AUX_DISK_1: starting archived log restore to default destination
channel ORA_AUX_DISK_1: restoring archived log
archived log thread=1 sequence=1710
channel ORA_AUX_DISK_1: reading from backup piece /oraclebackup/CORE/ARC_1HR_CORE_16022013_5jo24jp8_179_1
channel ORA_AUX_DISK_2: starting archived log restore to default destination
channel ORA_AUX_DISK_2: restoring archived log
archived log thread=1 sequence=1711
channel ORA_AUX_DISK_2: restoring archived log
archived log thread=1 sequence=1712
channel ORA_AUX_DISK_2: restoring archived log
archived log thread=1 sequence=1713
channel ORA_AUX_DISK_2: restoring archived log
archived log thread=1 sequence=1714
channel ORA_AUX_DISK_2: restoring archived log
archived log thread=1 sequence=1715
channel ORA_AUX_DISK_2: restoring archived log
archived log thread=1 sequence=1716
channel ORA_AUX_DISK_2: restoring archived log
archived log thread=1 sequence=1717
channel ORA_AUX_DISK_2: reading from backup piece /oraclebackup/CORE/ARC_1HR_CORE_18022013_5ko296uf_180_1
channel ORA_AUX_DISK_1: piece handle=/oraclebackup/CORE/ARC_1HR_CORE_16022013_5jo24jp8_179_1 tag=ARC_1HR
channel ORA_AUX_DISK_1: restored backup piece 1
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:01
archived log file name=/u05/oradata/CORE/CORE_DUP/CORE_DUP17101807276264.ARC thread=1 sequence=1710
channel clone_default: deleting archived log(s)
archived log file name=/u05/oradata/CORE/CORE_DUP/CORE_DUP17101807276264.ARC RECID=3041 STAMP=807724360
channel ORA_AUX_DISK_2: piece handle=/oraclebackup/CORE/ARC_1HR_CORE_18022013_5ko296uf_180_1 tag=ARC_1HR
channel ORA_AUX_DISK_2: restored backup piece 1
channel ORA_AUX_DISK_2: restore complete, elapsed time: 00:00:08
archived log file name=/u05/oradata/CORE/CORE_DUP/CORE_DUP17111807276264.ARC thread=1 sequence=1711
channel clone_default: deleting archived log(s)
archived log file name=/u05/oradata/CORE/CORE_DUP/CORE_DUP17111807276264.ARC RECID=3042 STAMP=807724362
archived log file name=/u05/oradata/CORE/CORE_DUP/CORE_DUP17121807276264.ARC thread=1 sequence=1712
channel clone_default: deleting archived log(s)
archived log file name=/u05/oradata/CORE/CORE_DUP/CORE_DUP17121807276264.ARC RECID=3043 STAMP=807724363
archived log file name=/u05/oradata/CORE/CORE_DUP/CORE_DUP17131807276264.ARC thread=1 sequence=1713
channel clone_default: deleting archived log(s)
archived log file name=/u05/oradata/CORE/CORE_DUP/CORE_DUP17131807276264.ARC RECID=3044 STAMP=807724367
archived log file name=/u05/oradata/CORE/CORE_DUP/CORE_DUP17141807276264.ARC thread=1 sequence=1714
channel clone_default: deleting archived log(s)
archived log file name=/u05/oradata/CORE/CORE_DUP/CORE_DUP17141807276264.ARC RECID=3048 STAMP=807724367
archived log file name=/u05/oradata/CORE/CORE_DUP/CORE_DUP17151807276264.ARC thread=1 sequence=1715
channel clone_default: deleting archived log(s)
archived log file name=/u05/oradata/CORE/CORE_DUP/CORE_DUP17151807276264.ARC RECID=3046 STAMP=807724367
archived log file name=/u05/oradata/CORE/CORE_DUP/CORE_DUP17161807276264.ARC thread=1 sequence=1716
channel clone_default: deleting archived log(s)
archived log file name=/u05/oradata/CORE/CORE_DUP/CORE_DUP17161807276264.ARC RECID=3045 STAMP=807724367
archived log file name=/u05/oradata/CORE/CORE_DUP/CORE_DUP17171807276264.ARC thread=1 sequence=1717
channel clone_default: deleting archived log(s)
archived log file name=/u05/oradata/CORE/CORE_DUP/CORE_DUP17171807276264.ARC RECID=3047 STAMP=807724367
archived log file name=/u05/oradata/CORE/CORE_17181807276264.ARC thread=1 sequence=1718
archived log file name=/u05/oradata/CORE/CORE_17191807276264.ARC thread=1 sequence=1719
archived log file name=/u05/oradata/CORE/CORE_17201807276264.ARC thread=1 sequence=1720
archived log file name=/u05/oradata/CORE/CORE_17211807276264.ARC thread=1 sequence=1721
archived log file name=/u05/oradata/CORE/CORE_17221807276264.ARC thread=1 sequence=1722
archived log file name=/u05/oradata/CORE/CORE_17231807276264.ARC thread=1 sequence=1723
archived log file name=/u05/oradata/CORE/CORE_17241807276264.ARC thread=1 sequence=1724
archived log file name=/u05/oradata/CORE/CORE_17251807276264.ARC thread=1 sequence=1725
archived log file name=/u05/oradata/CORE/CORE_17261807276264.ARC thread=1 sequence=1726
archived log file name=/u05/oradata/CORE/CORE_17271807276264.ARC thread=1 sequence=1727
archived log file name=/u05/oradata/CORE/CORE_17281807276264.ARC thread=1 sequence=1728
archived log file name=/u05/oradata/CORE/CORE_17291807276264.ARC thread=1 sequence=1729
archived log file name=/u05/oradata/CORE/CORE_17301807276264.ARC thread=1 sequence=1730
archived log file name=/u05/oradata/CORE/CORE_17311807276264.ARC thread=1 sequence=1731
archived log file name=/u05/oradata/CORE/CORE_17321807276264.ARC thread=1 sequence=1732
archived log file name=/u05/oradata/CORE/CORE_17331807276264.ARC thread=1 sequence=1733
archived log file name=/u05/oradata/CORE/CORE_17341807276264.ARC thread=1 sequence=1734
archived log file name=/u05/oradata/CORE/CORE_17351807276264.ARC thread=1 sequence=1735
archived log file name=/u05/oradata/CORE/CORE_17361807276264.ARC thread=1 sequence=1736
archived log file name=/u05/oradata/CORE/CORE_17371807276264.ARC thread=1 sequence=1737
archived log file name=/u05/oradata/CORE/CORE_17381807276264.ARC thread=1 sequence=1738
archived log file name=/u05/oradata/CORE/CORE_17391807276264.ARC thread=1 sequence=1739
archived log file name=/u05/oradata/CORE/CORE_17401807276264.ARC thread=1 sequence=1740
archived log file name=/u05/oradata/CORE/CORE_17411807276264.ARC thread=1 sequence=1741
archived log file name=/u05/oradata/CORE/CORE_17421807276264.ARC thread=1 sequence=1742
archived log file name=/u05/oradata/CORE/CORE_17431807276264.ARC thread=1 sequence=1743
archived log file name=/u05/oradata/CORE/CORE_17441807276264.ARC thread=1 sequence=1744
media recovery complete, elapsed time: 00:00:33
Finished recover at 18-FEB-13
contents of Memory Script:
shutdown clone immediate;
startup clone nomount;
sql clone "alter system set db_name =
''CORE_DUP'' comment=
''Reset to original value by RMAN'' scope=spfile";
sql clone "alter system reset db_unique_name scope=spfile";
shutdown clone immediate;
startup clone nomount;
executing Memory Script
database dismounted
Oracle instance shut down
connected to auxiliary database (not started)
Oracle instance started
Total System Global Area 4275781632 bytes
Fixed Size 2213632 bytes
Variable Size 838863104 bytes
Database Buffers 3422552064 bytes
Redo Buffers 12152832 bytes
sql statement: alter system set db_name = ''CORE_DUP'' comment= ''Reset to original value by RMAN'' scope=spfile
sql statement: alter system reset db_unique_name scope=spfile
Oracle instance shut down
connected to auxiliary database (not started)
Oracle instance started
Total System Global Area 4275781632 bytes
Fixed Size 2213632 bytes
Variable Size 838863104 bytes
Database Buffers 3422552064 bytes
Redo Buffers 12152832 bytes
sql statement: CREATE CONTROLFILE REUSE SET DATABASE "CORE_DUP" RESETLOGS ARCHIVELOG
MAXLOGFILES 32
MAXLOGMEMBERS 4
MAXDATAFILES 500
MAXINSTANCES 1
MAXLOGHISTORY 2298
LOGFILE
GROUP 1 ( '/u02/oradata/CORE/CORE_DUP/redo01a.log', '/u03/oradata/CORE/CORE_DUP/redo01b.log' ) SIZE 10 M REUSE,
GROUP 2 ( '/u02/oradata/CORE/CORE_DUP/redo02a.log', '/u03/oradata/CORE/CORE_DUP/redo02b.log' ) SIZE 10 M REUSE,
GROUP 3 ( '/u02/oradata/CORE/CORE_DUP/redo03a.log', '/u03/oradata/CORE/CORE_DUP/redo03b.log' ) SIZE 10 M REUSE
DATAFILE
'/u04/oradata/CORE/CORE_DUP/system01.dbf'
CHARACTER SET AL32UTF8
contents of Memory Script:
set newname for tempfile 1 to
"/u04/oradata/CORE/CORE_DUP/temp01.dbf";
switch clone tempfile all;
catalog clone datafilecopy "/u04/oradata/CORE/CORE_DUP/sysaux01.dbf",
"/u04/oradata/CORE/CORE_DUP/users01.dbf",
"/u04/oradata/CORE/CORE_DUP/users02.dbf",
"/u04/oradata/CORE/CORE_DUP/users03.dbf",
"/u04/oradata/CORE/CORE_DUP/undotbs_new01.dbf";
switch clone datafile all;
executing Memory Script
executing command: SET NEWNAME
renamed tempfile 1 to /u04/oradata/CORE/CORE_DUP/temp01.dbf in control file
cataloged datafile copy
datafile copy file name=/u04/oradata/CORE/CORE_DUP/sysaux01.dbf RECID=1 STAMP=807724423
cataloged datafile copy
datafile copy file name=/u04/oradata/CORE/CORE_DUP/users01.dbf RECID=2 STAMP=807724423
cataloged datafile copy
datafile copy file name=/u04/oradata/CORE/CORE_DUP/users02.dbf RECID=3 STAMP=807724423
cataloged datafile copy
datafile copy file name=/u04/oradata/CORE/CORE_DUP/users03.dbf RECID=4 STAMP=807724423
cataloged datafile copy
datafile copy file name=/u04/oradata/CORE/CORE_DUP/undotbs_new01.dbf RECID=5 STAMP=807724423
datafile 2 switched to datafile copy
input datafile copy RECID=1 STAMP=807724423 file name=/u04/oradata/CORE/CORE_DUP/sysaux01.dbf
datafile 4 switched to datafile copy
input datafile copy RECID=2 STAMP=807724423 file name=/u04/oradata/CORE/CORE_DUP/users01.dbf
datafile 5 switched to datafile copy
input datafile copy RECID=3 STAMP=807724423 file name=/u04/oradata/CORE/CORE_DUP/users02.dbf
datafile 6 switched to datafile copy
input datafile copy RECID=4 STAMP=807724423 file name=/u04/oradata/CORE/CORE_DUP/users03.dbf
datafile 9 switched to datafile copy
input datafile copy RECID=5 STAMP=807724423 file name=/u04/oradata/CORE/CORE_DUP/undotbs_new01.dbf
contents of Memory Script:
Alter clone database open resetlogs;
executing Memory Script
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-00601: fatal error in recovery manager
RMAN-03004: fatal error during execution of command
RMAN-10041: Could not re-create polling channel context following failure.
RMAN-10024: error setting up for rpc polling
RMAN-10005: error opening cursor
RMAN-10002: ORACLE error: ORA-03114: not connected to ORACLE
RMAN-03002: failure of Duplicate Db command at 02/18/2013 15:53:50
RMAN-03015: error occurred in stored script Memory Script
RMAN-06136: ORACLE error from auxiliary database: ORA-01092: ORACLE instance terminated. Disconnection forced
ORA-30012: undo tablespace 'UNDOTBS' does not exist or of wrong type
Process ID: 3670170
Session ID: 33 Serial number: 7
oracore@cph-core-db01-s $ -
Hi guys.
Our database has 50GB of undo tablespace. I decided to create a second undo tablespace and switch to the new one. Since doing that yesterday, the size of the old undo is 49GB (was thinking that the values will drop to zero) and the new tablespace keeps increasing in size! Its size now is about 20GB. I do have the following question.
a) If I restart the database, it the value of the old undo going to fall to zero?
b) undo_retention=86400. Setting this value to a lesser value say 800seconds, it is going to act the performance of the database? Is it going to release the space on the old undo?
Thanks and any help is appreciated.
DavidThe undo tablespace will not automatically shrink size, since you have a new undo tablespace in place. You can drop the old one if you don't plan to use it.
Set lower undo_retention will certainly help to contain the undo space usage. However you should query v$undostat and v$rollstat to estimate the amount of undo space required for the current workload then size the undo tablespace accordingly. Turn off the auto extend on undo tablespace. -
How to recover undo tablespace in 9i
How can i recover undo tablespace 9i.Can any provide step by step recovery process
Doc ID 94114.1 on Metalink might be of interest to you
-
Select data from undo tablespace?
Hi all,
Can i select data from undo segments in undo tablespace?
Thank you.
Dan.This sort of thing could be considered to be selecting from an undo segment:orcl> select count(*) from emp;
COUNT(*)
14
orcl> delete from emp;
14 rows deleted.
orcl> commit;
Commit complete.
orcl> select * from emp as of timestamp(sysdate - 5/1440);
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
7369 SMITH CLERK 7902 17-12-80 00:00:00 800 20
7499 ALLEN SALESMAN 7698 20-02-81 00:00:00 1600 300 30
7521 WARD SALESMAN 7698 22-02-81 00:00:00 1250 500 30
7566 JONES MANAGER 7839 02-04-81 00:00:00 2975 20
7654 MARTIN SALESMAN 7698 28-09-81 00:00:00 1250 1400 30
7698 BLAKE MANAGER 7839 01-05-81 00:00:00 2850 30
7782 CLARK MANAGER 7839 09-06-81 00:00:00 2450 10
7788 SCOTT ANALYST 7566 19-04-87 00:00:00 3000 20
7839 KING PRESIDENT 17-11-81 00:00:00 5000 10
7844 TURNER SALESMAN 7698 08-09-81 00:00:00 1500 0 30
7876 ADAMS CLERK 7788 23-05-87 00:00:00 1100 20
7900 JAMES CLERK 7698 03-12-81 00:00:00 950 30
7902 FORD ANALYST 7566 03-12-81 00:00:00 3000 20
7934 MILLER CLERK 7782 23-01-82 00:00:00 1300 10
14 rows selected.
orcl> -
Is there so call "dedicated" UNDO tablespace in Oracle 9i and higher?
Since one of our applicaions needs to process large amounts of data, we have been using a dedicated rollback segment in order to avoid the "snapshot too old" problem.
Recently our DB upgraded to Oracle 9i and DBA asked us to use "undo" tablespace.
Based the Oracle 9i Doc., it only allows to select ONE undo tablespace at a time.
If so, DBA has to make the only UNDO as large as our Cash large transactions
need(adjust the UNDO_RENTION), which inevitably waste lots of space.
Does Oracle 9i allow to have one dedicated UNDO tablespace for large transactions while another one for regular transactions just like we use the old rollback segments.
Thanks in advanceWhy have multiple UNDO tablespaces? You can only use one at a time, and when the other one is not being used, it still consumes storage space.
Spend a little time determining how much undo you need and size undo tablespace and undo retention around those values and you should be able to resolve the problems you are experiencing now.
http://download-east.oracle.com/docs/cd/B10501_01/server.920/a96521/undo.htm#9505
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