DBLINK - job session hang status

Hi all,
I have the following problem:
I have database 92 whom he loads give to you from a database remote through dblink.
Between the two nodes is interposed a firewall and door 1521 turns out to be.
Periodically opened the job of loading goes in hang.
On the remote server is not present sessions while on database local the job it remains hung.
I have not found no type of error on the log, but they are forced every time to kill the job and
to throw again it subsequently.
which he could be the cause?
how he could be resolved?
thanks
Alessandro

Friend ,
> I found many long running background Jobs in SM37, then I checked in SM66 and found that all there are too many Jobs running on all Application Servers, and all WP were fully occupied.
>
It should not be the case . All workprocess fully occupied, means you need to work on to optimize distribution of work processes . Otherwise such issues will occur often, and you have to compromise on the performance.
Refer https://cw.sdn.sap.com/cw/docs/DOC-38580?treeid=DOC-8116 .
http://help.sap.com/saphelp_webas620/helpdata/EN/c4/3a5ef8505211d189550000e829fbbd/content.htm
> Is there any other way to recover this situation, as the System was Productio. and we are not allowed to increase spool count > 32,000 which is it's standard value.
>
Avoid such situation by the perfect optimization as mentioned above . Also configure Email alerts through CCMS config to get alerts on your SPool size and other critical stuffs so that you can be proactive .
Regards,
Nibu Antony

Similar Messages

Jobs are hanging in running status

Hey ,
I have some overnight jobs that refresh materialized views over a dblink from a remote db. I came this morning and noticed that some of the jobs where hanging in RUNNING state with "more data from dblink" event but there was no corresponding sessions in the remote db. It seems like the refresh process was already done (by the size of the mviews). Tracing the session is useless (i've tried) since no actual job is being done. The alert log gave no clue.
any ideas on what the problem is or what to do in order to find it?
could it be a locking issue ?
Thanks

Hi,
I think you may need to use normal database hang diagnostic methods to try to figure out what is going on.
The first thing to do is look in the dba_scheduler_running_jobs view, there should be sessions associates with the running view (you can also check that there are real j0 slave processes running the jobs). Once you have checked that there is a real session that is still running the job maybe you could check the v$session view and any other v$ views that should be able to tell you what SQL statement the job is hanging on. You may also be able to check locks held by those sessions.
You may also be able to use Oracle's ADDM reporting tools to get some diagnostic info.
Another possible thing to try is running the job action by hand manually in pl/sql and seeing whether that hangs and possibly figure out where.
Where do you see the "more data from dblink" message ?
-Ravi

Repeating Job Can Hang In "Started" Status On Multi-Cpu Windows Machine

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Upgraded to EM 9.2.0.6 and applied the Apr05 CPU.
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Lsnrctl and sqlplus hang status

Hi,
DB:10.2
OS:aix
The lsnrctl and sqlplus hang status while logging.
I tried to use sqlplus -prelim.but no use.Sufficient space in server ,tmp also.
Swap also 100% free,cpu also idle and sufficient physical memory available.
Only think is some of the hard disks usage is 100%.Tnsping not working.
Any suggestions?
Thanks and Regards,
VN

Hi,
Thanks for your reply.
Thu May 10 12:01:51 2012
Thread 1 advanced to log sequence 1216 (LGWR switch)
Current log# 4 seq# 1216 mem# 0: /db/rd01/CM6/redo0401.rdo
Current log# 4 seq# 1216 mem# 1: /db/rd02/CM6/redo0402.rdo
Fri May 11 06:00:13 2012
Thread 1 advanced to log sequence 1217 (LGWR switch)
Current log# 3 seq# 1217 mem# 0: /db/rd01/CM6/redo0301.rdo
Current log# 3 seq# 1217 mem# 1: /db/rd02/CM6/redo0302.rdo
Fri May 11 12:00:58 2012
Process startup failed, error stack:
Fri May 11 12:00:58 2012
Errors in file /u01/app/oracle/product/CM6/bdump/CM6_psp0_790622.trc:
ORA-27300: OS system dependent operation:fork failed with status: 2
ORA-27301: OS failure message: No such file or directory
ORA-27302: failure occurred at: skgpspawn5
ORA-27303: additional information: skgpspawn5
Fri May 11 12:00:59 2012
Process m001 died, see its trace file
Fri May 11 12:00:59 2012
ksvcreate: Process(m001) creation failed
oracle@cmm-ax01:/u01/app/oracle/product/CM6/bdump: date
Fri May 11 12:47:44 CUT 2012
oracle@cmm-ax01:/u01/app/oracle/product/CM6/bdump: cat /u01/app/oracle/product/CM6/bdump/CM6_psp0_790622.trc
-bash: fork: Resource temporarily unavailable
oracle@cmm-ax01:/u01/app/oracle/product/CM6/bdump:
oracle@cmmm-ax01:/u01/app/oracle/product/CM6/bdump: cat /u01/app/oracle/product/CM6/bdump/CM6_psp0_790622.trc
/u01/app/oracle/product/CM6/bdump/CM6_psp0_790622.trc
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
ORACLE_HOME = /u01/app/oracle/product
System name: AIX
Node name: cmmm-ax01
Release: 3
Version: 5
Machine: 00C108CA4C00
Instance name: CM6
Redo thread mounted by this instance: 1
Oracle process number: 3
Unix process pid: 790622, image: oracle@cmmm-ax01 (PSP0)
*** SERVICE NAME:(SYS$BACKGROUND) 2011-11-09 15:21:39.787
*** 2011-11-10 09:17:28.226
*** SESSION ID:(48.1) 2011-11-09 15:21:39.787
*** 2011-11-09 15:21:39.787
Dump diagnostics for process J002 pid 1196104 which did not start after 120 seconds:
(spawn_time:xDEBE0F3E6 now:xDEBE2CB47 diff:x1D761)
*** 2011-11-10 09:17:28.226
Dumping diagnostic information for J002:
OS pid = 1196104
loadavg : 0.49 0.57 0.59
swap info: free_mem = 3577.59M rsv = 18.00M
alloc = 17.02M avail = 4608.00M swap_free = 4590.98M
F S UID PID PPID C PRI NI ADDR SZ WCHAN STIME TTY TIME CMD
240001 A oracle 1196104 1 3 61 20 3721510 92484 15:19:39 - 0:00 [oracle]
ERROR: process 1196104 is not alive
*** 2011-11-10 09:17:29.714
*** 2011-11-21 15:21:39.966
Dump diagnostics for process J001 pid 880892 which did not start after 120 seconds:
(spawn_time:xE29AD3786 now:xE29AF0FEA diff:x1D864)
*** 2011-11-21 15:21:39.966
Dumping diagnostic information for J001:
OS pid = 880892
loadavg : 1.73 1.64 1.62
swap info: free_mem = 2796.55M rsv = 18.00M
alloc = 16.93M avail = 4608.00M swap_free = 4591.07M
skgpgpstack: read() for cmd /bin/ps -elf | /bin/egrep 'PID | 880892' | /bin/grep -v grep timed out after 60 seconds
open: The file access permissions do not allow the specified action.
skgpgpstack: read() for cmd /bin/sh -c '/usr/bin/procstack 880892 2>&1' timed out after 60 seconds
*** 2011-11-21 15:24:40.018
Killing process (ospid 880892): did not start after 120 seconds
... and the process is still alive after kill!
Killed process 880892 is still alive after 183 seconds!
*** 2011-11-21 15:25:43.019
Killed process 880892 is still alive after 243 seconds!
*** 2011-11-21 15:26:43.020
Killed process 880892 is still alive after 303 seconds!
*** 2011-11-21 15:27:43.022
Killed process 880892 is still alive after 363 seconds!
*** 2011-11-21 15:28:43.023
Killed process 880892 is still alive after 423 seconds!
*** 2011-11-21 15:29:43.024
Killed process 880892 is still alive after 483 seconds!
*** 2011-11-21 15:30:43.025
Killed process 880892 is still alive after 543 seconds!
*** 2011-11-21 15:31:43.026
Killed process 880892 is still alive after 603 seconds!
*** 2011-11-21 15:32:43.027
Killed process 880892 is still alive after 663 seconds!
*** 2011-11-21 15:33:43.028
Killed process 880892 is still alive after 723 seconds!
*** 2011-11-21 15:34:43.029
Killed process 880892 is still alive after 783 seconds!
*** 2011-11-21 15:35:43.031
Killed process 880892 is still alive after 843 seconds!
*** 2011-11-21 15:36:43.032
Killed process 880892 is still alive after 903 seconds!
*** 2011-11-21 15:37:43.033
Killed process 880892 is still alive after 963 seconds!
*** 2011-11-21 15:38:43.034
Killed process 880892 is still alive after 1023 seconds!
*** 2011-11-21 15:39:43.035
Killed process 880892 is still alive after 1083 seconds!
*** 2011-11-21 15:40:43.037
Killed process 880892 is still alive after 1143 seconds!
*** 2011-11-21 15:41:43.038
Killed process 880892 is still alive after 1203 seconds!
*** 2011-11-21 15:42:43.039
Killed process 880892 is still alive after 1263 seconds!
*** 2011-11-21 15:43:46.035
Killed process 880892 is still alive after 1326 seconds!
*** 2011-11-21 15:44:46.036
Killed process 880892 is still alive after 1386 seconds!
*** 2011-11-21 15:44:46.036
Dump diagnostics for process J001 pid 1114146 which did not start after 120 seconds:
(spawn_time:xE29C25B79 now:xE29C43640 diff:x1DAC7)
*** 2011-11-21 15:44:46.036
Dumping diagnostic information for J001:
OS pid = 1114146
loadavg : 1.90 1.88 1.74
swap info: free_mem = 2773.38M rsv = 18.00M
alloc = 17.42M avail = 4608.00M swap_free = 4590.58M
skgpgpstack: read() for cmd /bin/ps -elf | /bin/egrep 'PID | 1114146' | /bin/grep -v grep timed out after 60 seconds
open: The file access permissions do not allow the specified action.
skgpgpstack: read() for cmd /bin/sh -c '/usr/bin/procstack 1114146 2>&1' timed out after 60 seconds
*** 2011-11-21 15:47:46.091
Killing process (ospid 1114146): did not start after 120 seconds
... and the process is still alive after kill!
Killed process 880892 is still alive after 1569 seconds!
Killed process 1114146 is still alive after 183 seconds!
*** 2011-11-21 15:48:49.092
Killed process 880892 is still alive after 1629 seconds!
Killed process 1114146 is still alive after 243 seconds!
*** 2011-11-21 15:49:49.093
Killed process 880892 is still alive after 1689 seconds!
Killed process 1114146 is still alive after 303 seconds!
*** 2011-11-21 15:50:49.095
Killed process 880892 is still alive after 1749 seconds!
Killed process 1114146 is still alive after 363 seconds!
*** 2011-11-21 15:51:49.096
Killed process 880892 is still alive after 1809 seconds!
Killed process 1114146 is still alive after 423 seconds!
*** 2012-05-11 12:00:58.777
Process startup failed, error stack:
ORA-27300: OS system dependent operation:fork failed with status: 2
ORA-27301: OS failure message: No such file or directory
ORA-27302: failure occurred at: skgpspawn5
ORA-27303: additional information: skgpspawn5
oracle@cmm-ax01:/u01/app/oracle/product/CM6/bdump:
we didn't changed anything at db level.It is fine till this morning.
Thanks & Regards,
VN
Edited by: user3266490 on May 11, 2012 6:31 PM

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Thanks,
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Message was edited by:
Dion_Cho

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oracle doesn't generate the trace file.
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I WANT TO TRIGGAR PC TWICE IN DAY 5 PM AND 2AM.
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It is supposed to be in Released status.
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Edited by: Geo on May 4, 2009 11:13 AM

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Event triggered jobs can be configured in SAP directly ,,,
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http://www.sap-press.de/download/dateien/1102/sappress_job_scheduling.pdf
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DBLINK - job session hang status

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