Restarting dead background process QMN0

Hello,
i am facing a problem. When i take my database begin backup mode and after backup completed again take database end backup. then one of my tablespace is going to be offline, Restarting dead background process QMN0. Please check my alert log and suggest.
alter tablespace SYSTEM begin backup
Fri Aug 31 18:09:44 2007
Completed: alter tablespace SYSTEM begin backup
Fri Aug 31 18:09:44 2007
alter tablespace APPS_UNDOTS1 begin backup
Completed: alter tablespace APPS_UNDOTS1 begin backup
Fri Aug 31 18:09:45 2007
alter tablespace PERFSTAT begin backup
Completed: alter tablespace PERFSTAT begin backup
Fri Aug 31 18:09:45 2007
alter tablespace APPS_TS_NOLOGGING begin backup
Completed: alter tablespace APPS_TS_NOLOGGING begin backup
Fri Aug 31 18:09:45 2007
alter tablespace APPS_TS_MEDIA begin backup
Completed: alter tablespace APPS_TS_MEDIA begin backup
Fri Aug 31 18:09:45 2007
alter tablespace OWAPUB begin backup
Completed: alter tablespace OWAPUB begin backup
Fri Aug 31 18:09:45 2007
alter tablespace ODM begin backup
Completed: alter tablespace ODM begin backup
Fri Aug 31 18:09:45 2007
alter tablespace APPS_TS_INTERFACE begin backup
Completed: alter tablespace APPS_TS_INTERFACE begin backup
Fri Aug 31 18:09:45 2007
alter tablespace APPS_TS_SUMMARY begin backup
Completed: alter tablespace APPS_TS_SUMMARY begin backup
Fri Aug 31 18:09:45 2007
alter tablespace APPS_TS_SEED begin backup
Completed: alter tablespace APPS_TS_SEED begin backup
Fri Aug 31 18:09:45 2007
alter tablespace PORTAL begin backup
Completed: alter tablespace PORTAL begin backup
Fri Aug 31 18:09:45 2007
alter tablespace APPS_TS_QUEUES begin backup
Completed: alter tablespace APPS_TS_QUEUES begin backup
Fri Aug 31 18:09:45 2007
alter tablespace OLAP begin backup
Completed: alter tablespace OLAP begin backup
Fri Aug 31 18:09:45 2007
alter tablespace APPS_TS_ARCHIVE begin backup
Completed: alter tablespace APPS_TS_ARCHIVE begin backup
Fri Aug 31 18:09:45 2007
alter tablespace APPS_TS_TX_DATA begin backup
Completed: alter tablespace APPS_TS_TX_DATA begin backup
Fri Aug 31 18:09:45 2007
alter tablespace APPS_TS_TX_IDX begin backup
Completed: alter tablespace APPS_TS_TX_IDX begin backup
Fri Aug 31 18:09:45 2007
alter tablespace CTXD begin backup
Fri Aug 31 18:09:45 2007
Completed checkpoint up to RBA [0x3f71.2.10], SCN: 0x0000.1949e6af
Fri Aug 31 18:09:45 2007
Completed: alter tablespace CTXD begin backup
Fri Aug 31 18:09:45 2007
alter tablespace XXEMD begin backup
Completed: alter tablespace XXEMD begin backup
Fri Aug 31 18:09:45 2007
alter tablespace DISCOVERER begin backup
Completed: alter tablespace DISCOVERER begin backup
Fri Aug 31 18:36:19 2007
alter tablespace SYSTEM end backup
Fri Aug 31 18:36:19 2007
Completed: alter tablespace SYSTEM end backup
Fri Aug 31 18:36:20 2007
alter tablespace APPS_UNDOTS1 end backup
Completed: alter tablespace APPS_UNDOTS1 end backup
Fri Aug 31 18:36:20 2007
alter tablespace PERFSTAT end backup
Completed: alter tablespace PERFSTAT end backup
Fri Aug 31 18:36:20 2007
alter tablespace APPS_TS_NOLOGGING end backup
Completed: alter tablespace APPS_TS_NOLOGGING end backup
Fri Aug 31 18:36:20 2007
alter tablespace APPS_TS_MEDIA end backup
Completed: alter tablespace APPS_TS_MEDIA end backup
Fri Aug 31 18:36:20 2007
alter tablespace OWAPUB end backup
Completed: alter tablespace OWAPUB end backup
Fri Aug 31 18:36:20 2007
alter tablespace ODM end backup
Completed: alter tablespace ODM end backup
Fri Aug 31 18:36:20 2007
alter tablespace APPS_TS_INTERFACE end backup
Completed: alter tablespace APPS_TS_INTERFACE end backup
Fri Aug 31 18:36:20 2007
alter tablespace APPS_TS_SUMMARY end backup
Completed: alter tablespace APPS_TS_SUMMARY end backup
Fri Aug 31 18:36:20 2007
alter tablespace APPS_TS_SEED end backup
Completed: alter tablespace APPS_TS_SEED end backup
Fri Aug 31 18:36:20 2007
alter tablespace PORTAL end backup
Completed: alter tablespace PORTAL end backup
Fri Aug 31 18:36:20 2007
alter tablespace APPS_TS_QUEUES end backup
Completed: alter tablespace APPS_TS_QUEUES end backup
Fri Aug 31 18:36:20 2007
alter tablespace OLAP end backup
Completed: alter tablespace OLAP end backup
Fri Aug 31 18:36:20 2007
alter tablespace APPS_TS_ARCHIVE end backup
Completed: alter tablespace APPS_TS_ARCHIVE end backup
Fri Aug 31 18:36:20 2007
alter tablespace APPS_TS_TX_DATA end backup
Completed: alter tablespace APPS_TS_TX_DATA end backup
Fri Aug 31 18:36:20 2007
alter tablespace APPS_TS_TX_IDX end backup
Completed: alter tablespace APPS_TS_TX_IDX end backup
Fri Aug 31 18:36:20 2007
alter tablespace CTXD end backup
Completed: alter tablespace CTXD end backup
Fri Aug 31 18:36:20 2007
alter tablespace XXEMD end backup
Completed: alter tablespace XXEMD end backup
Fri Aug 31 18:36:20 2007
alter tablespace DISCOVERER end backup
Completed: alter tablespace DISCOVERER end backup
Fri Aug 31 18:38:15 2007
alter tablespace apps_ts_tx_data offline
Fri Aug 31 18:38:17 2007
Restarting dead background process QMN0
QMN0 started with pid=10
Fri Aug 31 18:38:19 2007
Starting control autobackup
Control autobackup written to DISK device
     handle '/u02/oracle/proddb/9.2.0/dbs/c-11101939-20070831-03'
Completed: alter tablespace apps_ts_tx_data offline
Fri Aug 31 18:43:21 2007
Restarting dead background process QMN0
QMN0 started with pid=10
Fri Aug 31 18:45:08 2007
alter tablespace apps_ts_tx_data online
Fri Aug 31 18:45:08 2007
Starting control autobackup
Control autobackup written to DISK device
     handle '/u02/oracle/proddb/9.2.0/dbs/c-11101939-20070831-04'
Completed: alter tablespace apps_ts_tx_data online
Fri Aug 31 18:46:28 2007
Beginning log switch checkpoint up to RBA [0x3f72.2.10], SCN: 0x0000.194a7613
then at that time I have no solution then I take shutdown database. and then open.
Please suggest
Many thanks

First the suggestion always include OS and database version, that's a great help. Since I don't have this information, only a vague guess: it could be bug
Bug 3248886 - Continous 'restarting dead background process qmn0' message in alert.log
As a workaround set AQ_TM_PROCESSES=0. Don't do this when Oracle Streams is used.
Werner

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    Non critical error ORA-48913 caught while writing to trace file "/db1/ora1211/db/tech_st/11.1.0/admin/RGDB_orargpdb/diag/rdbms/rgdb/RGDB/trace/RGDB_ora_23488
    .trc"
    Error message: ORA-48913: Writing into trace file failed, file size limit [10485760] reached
    Writing to the above trace file is disabled for now on...
    Thu Oct 21 07:25:31 2010
    ORA-00060: Deadlock detected. More info in file /db1/ora1211/db/tech_st/11.1.0/admin/RGDB_orargpdb/diag/rdbms/rgdb/RGDB/trace/RGDB_ora_26495.trc.
    Thu Oct 21 09:24:04 2010
    When i checked the background processes, mmon and mmnl processes were not running. When we restarted the database, everything started working fine.
    this problems keep coming occasionally. Any help will be appreciated.

    Dear muneer.uae,
    SHUTDOWN: waiting for logins to complete.&
    PMON failed to delete process, see PMON trace fileWell i think those are enough for you to understand the problem but the important thing here to diagnose is the "deadlock". First of all forget about everything and answer the question "do you know what is a deadlock?". If your answer is no, please go to the http://tahiti.oracle.com and search for deadlock.
    The problem is not the Oracle database, is the application that you are currently using. You have nothing to do about the suicide of the PMON and if you can not solve it by your own than you need to create an SR call.
    Background processes "normally" do not kill theirselves.
    Regards.
    Ogan

  • RAC instance won't start: ORA-00443: background process "VKRM" did not star

    I've logged a SR with Oracle, but while waiting for response from them...I'm stumped I can't find more out here about this article.
    On Oracle knowledgebase...any search for VKRM, gives about the same 3 articles relating to RDA (Remote Diagnostic Assistant).
    Not sure what went on here.
    I have a 5 node RAC cluster. All other instances seem to be running just fine.
    On one instance...some applications were getting an error like:
    ORA-01033: ORACLE initialization or shutdown in progress
    I looked in GRID...and it indicated that only two of the 5 nodes had this instance running...which was strange in that with srvctl, it showed ll 5 up and running:
    [oracle@server2 bin]$ ./srvctl status database -d INSTANCE
    Instance INSTANCE1 is running on node server1
    Instance INSTANCE2 is running on node server2
    Instance INSTANCE3 is running on node server3
    Instance INSTNANCE4 is running on node server4
    Instance INSTANCE5 is running on node server5
    Anyway, thought I'd poke around. I started with trying to get srvctl to stop instance #2...in GRID it seemed that instance 2,4 and 5 weren't working.
    srvctl stop instance -D INSTANCE -i INSTANCE2
    This just hung...
    I thought I'd cycle all the nodes...so, did a ctl-c out of that one, and did:
    [oracle@server2 bin]$ ./srvctl stop database -d INSTANCE -o abort
    PRCD-1124 : Failed to stop database INSTANCE and its services
    PRCR-1065 : Failed to stop resource (((((NAME STARTS_WITH ora.instance.) && (NAME ENDS_WITH .svc)) && (TYPE == ora.service.type)) && ((STATE != OFFLINE) || (TARGET != OFFLINE))) || (((NAME == ora.instance.db) && (TYPE == ora.database.type)) && (STATE != OFFLINE)))
    CRS-2675: Stop of 'ora.instance.db' on 'server5' failed
    CRS-2675: Stop of 'ora.instance.db' on 'server4' failed
    ORA-01034: ORACLE not available
    ORA-27101: shared memory realm does not exist
    Linux-x86_64 Error: 2: No such file or directory
    Process ID: 0
    Session ID: 0 Serial number: 0
    ORA-01034: ORACLE not available
    ORA-27101: shared memory realm does not exist
    Linux-x86_64 Error: 2: No such file or directory
    Process ID: 0
    Session ID: 0 Serial number: 0
    The ORA-01034 messages repeats a number of times...and the one with server4 and server5 repeated again too.
    I also got this:
    CRS-2680: Clean of 'ora.instance.db' on 'server2' failed
    CRS-2675: Stop of 'ora.instance.db' on 'server5' failed
    CRS-2675: Stop of 'ora.instance.db' on 'server4' failed
    ORA-01034: ORACLE not available
    ORA-27101: shared memory realm does not exist
    Linux-x86_64 Error: 2: No such file or directory
    Process ID: 0
    Session ID: 0 Serial number: 0
    I get similar messages when I try to restart.
    clusters seem to be up, and other instances seem to be ok
    Looking at alert log...I found some strangeness in the traces
    Starting background process VKRM
    Errors in file /u01/app/oracle/diag/rdbms/instance/INSTANCE2/trace/INSTANCE2_dbrm_26982.trc:
    ORA-00443: background process "VKRM" did not start
    Errors in file /u01/app/oracle/diag/rdbms/instance/INSTANCE2/trace/INSTANCE2_ora_27467.trc:
    ORA-00450: background process '' did not start
    Errors in file /u01/app/oracle/diag/rdbms/instance/INSTANCE2/trace/INSTANCE2_ora_27467.trc:
    ORA-00450: background process '' did not start
    Error 450 happened during db open, shutting down database
    USER (ospid: 27467): terminating the instance due to error 450
    LGWR waiting for instance termination
    Instance terminated by USER, pid = 27467
    ORA-1092 signalled during: ALTER DATABASE OPEN...
    opiodr aborting process unknown ospid (27467) as a result of ORA-1092
    Looking at the trace listed above:
    2011-05-09 12:17:18.305726 :84271119:db_trace:ksb.c@2157:ksbs1p_real(): [10254:6:464] KSBS1P: process DBRM trying to start background VKRM
    2011-05-09 12:17:18.305729 :8427111A:db_trace:ksb.c@2220:ksbs1p_real(): [10254:6:464] KSBS1P: process DBRM obtained PR enqueue to start background VK
    RM
    2011-05-09 12:17:18.306021 :8427111D:db_trace:ksb.c@2354:ksbs1p_real(): [10254:6:464] KSBS1P: creation error posted OER(1089)
    2011-05-09 12:17:18.306029 :8427111F:db_trace:ksb.c@2424:ksbs1p_real(): [10254:6:464] KSBS1P: out of loop: process did not start
    Trace Bucket Dump End: default bucket for process 6 (osid: 26982, DBRM)
    ORA-00443: background process "VKRM" did not start
    kskdbrmpa: reply error 450
    Any ideas? Again...I can't seem to find much of ANY information searching out there for the VKRM background process not starting...
    Thanks in advance,
    cayenne
    Edited by: cayenne on May 9, 2011 11:34 AM

    Anyone? Anyone? Bueller?
    Ok..have been on phone with Oracle support, and have them stumped so far.
    I've checked..other instances are running (except one other that failed to cleanly shut down with srvctl and same error messages).
    I've check...ASM is running on all 5 nodes. I've used crsctl to check CRS on all nodes..clustering seems ok.
    Memory while somewhat high...should have enough room...the system has never complained before, and this has been up on this config for over a year.
    I was able on node one...to fire up the first nodes instance using the pfile there...it came up. I started it restrict..and promptly ran a datapump export, and then shut back down.
    While Oracle support is going through logs and trace files I sent...I've got another 11Gr2 environment (3 node RAC) I've been using as a test environment...and am recreated the instance there temporarily to allow my developers to test and get past the upcoming deadline.
    But, I'm still puzzled as to the solution on the main cluster. This seem to be normal, except these two instances....
    any ideas on where and what to look for?
    cayenne

  • Disk utility started, but a background process needed in disk utility didn'

    I am stumped. I have talked to tech support, read many threads on this error message, tried all the suggested solutions, and still I get this message "Disk utility started, but a background process needed in disk utility didn't start properly. Please quit and restart disk utility."
    The problem has been around for a while apparently. One technique called for removing iTunes to the desktop, trashing certain files in the library, then running disk utility. This did not work. Another suggestion was to trash, of all thing, the Chess program. This also did not work. Booting from the installation disk and running disk utility there to repair permissions also apparently does not work. Nor do third party software, such as YASU seem to get through to repair permissions.
    Given the number of discussion boards addressing this problem, i was stunned that applecare/tech support person I talked to had never heard of it. Please please please help!

    If you moved Disk Utility from the /Applications/Utilities directory, i.e. the Macintosh HD > Applications > Utilities folder, move it back to that folder.
    If memory serves, the "workaround" you cited involving iTunes only applies if you are using Mac OS X 10.3.9.
    Good luck!
    Dr. Smoke
    Author: Troubleshooting Mac® OS X

  • Is there any way to restart Cancled Background job

    Dears,
    Now we have a very important background job need to run everyday, but sometime it will be canceled due to memory is not enough.
    Is there any way to restart Cancled Background job automatically ?
    Thanks,
    Michael

    Hi Michael,
    To start the cancelled job manually
    At SM37 just mark the job then click   Job -> Change and just reschedule.
    For auto
    Create another job with same program name and variant , then create background processing event which gets trigger only when your job gets failed.
    For Event Creation kindly reach out to ABAPers and for Event based Scheduling you can contact basis team.
    BR Vaibhav

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