App server shutdown

[Former Member]

Hi,

I'm trying to find out the root cause of the unplanned application server shutdown that happened in our production system. I was browsing through the dev_w* and dev_disp files and found nothing unusual except for the log below, which I found in dev_disp.old file:

<b>Mon Oct 29 01:56:03 2007

DpSigInt: caught signal 2</b>

This was the last log when the app server shut itself down. Can anyone tell me what the above log means? And which other logs or trace files can I look for to help me find the root cause?

Thanks in advance.

Best regards,

Kris Caldoza

[former_member204746 · Accepted solution]

consider upgrading your SAP kernel.

also check if anybody kill processes at OS level or in SM51/SM50

[Former Member · Accepted solution]

Thanks Eric.

The app server's current kernel level is 46D 1984.

Kernel upgrade might not be in our options right now.

I also do not think that someone killed the processes at OS level. Very strange indeed...

[former_member204746 · Accepted solution]

you must have some kind of OS script to shutdown SAP. check in every user`s shell history to see if it was used recently.

also check backup scripts, reboot scripts. anything that uses stopsap.

check crontab, check "at", check external schedulers.

[Former Member]

Hi,

Is there any info in sm21 log?

Is there anything in the OS system log ? ( 'errpt -a | more' at unix level if you are on AIX.)

KR,

[Former Member]

Thanks Alluni.

I did not find anything "unusual" in SM21 when the shutdown happened.

The app server is running in HP-UX, which logs should I check at the OS?

[markus_doehr2]

Signal 2 is SIGUSR and is send if you e. g. increase the loglevel of a specific workprocess (e. g. using SM50).

In dev_disp you should see, why the server was shut down (normal shutdown, crash) etc.

--

Markus

[Former Member]

Thanks Markus.

Below are the only logs I found in dev_disp (aside from the Signal 2 log) which were generated at the time of the shutdown:

Mon Oct 29 01:56:06 2007

***LOG Q0M=> DpMsDetach, ms_detach () [dpxxdisp.c 8415]

MBUF state OFF

MBUF component DOWN

Mon Oct 29 01:56:07 2007

• ERROR => DpRqIQRemove: ShmDelete [dpxxqueu.c 430]

Mon Oct 29 01:56:08 2007

***LOG Q05=> DpHalt, DPStop ( 29771) [dpxxdisp.c 7280]

I believe it was a normal shutdown, don't you think?