Question Re: SM66 - Work Process Failures in Technology Q&A

SM66 - Work Process Failures

Former Member — Wed, 25 Nov 2015 13:37:48 GMT

Hi there,

I just noticed the following on transaction SM66:

The system is running fine. Looking in SM21 nothing seems to appear for the

same Process ID.

Is this something to worry about? How can I clear them down?

I went into SM50 and then restart process after error but it still stays highlighted in red.

Any ideas anyone?

Thanks

Andy

Re: SM66 - Work Process Failures

Former Member — Wed, 25 Nov 2015 14:12:32 GMT

Hi Andy,

Your SM66 screen shot is telling you that the <nn> WP have restarted <nn> times.

ie: The WP with PID 29906 has had 181 failures (restarts) but is currently in status WAITING (waiting for work).

What you need to check is the developer trace associated with the WP (SM50) and see from within the dev trace what errors are being logged.

Hope this helps you a wee bit.

KR,

Amerjit

Re: SM66 - Work Process Failures

Former Member — Wed, 25 Nov 2015 14:14:56 GMT

Hi Andy,

If you are seeing no errors in the system log or WP logs, then you may find at the WPs are set to restart periodically - it's a profile parameter which sets this.

Regards,

Graham

Re: SM66 - Work Process Failures

Former Member — Wed, 25 Nov 2015 14:21:56 GMT

Hi Graham,

Thanks for the reply. Would you happen to know the profile parameter so I can

check this out?

Thanks Andy

Re: SM66 - Work Process Failures

Former Member — Wed, 25 Nov 2015 14:22:35 GMT

Thanks for replying Amerjit, very useful info.

Cheers

Re: SM66 - Work Process Failures

Former Member — Wed, 25 Nov 2015 14:28:09 GMT

Hi Andy,

Try this note: http://service.sap.com/sap/support/notes/1709928

Regards,

Graham

Re: SM66 - Work Process Failures

Former Member — Wed, 25 Nov 2015 14:32:08 GMT

Good man, thanks Graham

Re: SM66 - Work Process Failures

Former Member — Wed, 25 Nov 2015 15:38:03 GMT

Hey Graham,

I can see where you're coming from with your initial remark and probably by the screen shot with the number of failures across all WP being almost identical.

That said, the WP autorestart wouldn't (shouldn't) show up in the error count of a WP. You'd just see in the dev trace that the autorestart time had been reached and the WP would restart.

If you have a test system, check it out by setting it to a silly value like 60s.

Cheers,

Amerjit

Re: SM66 - Work Process Failures

Former Member — Wed, 25 Nov 2015 15:40:00 GMT

Andy,

You're welcome. Could you do two things for us.

1. Post a screen shot of tx ST02.

2. Upload one of the developer trace files. eg: dev_w0

Could you also check tx ST22 to see if you're getting any short dumps.

Cheers,

Amerjit

Re: SM66 - Work Process Failures

Isaias_SAP — Wed, 25 Nov 2015 16:53:17 GMT

The profile parameter for auto-restart (rdisp/wp_auto_restart) does not increase that counter.

Those are unexpected restarts (e.g., crashes?).

Re: SM66 - Work Process Failures

Former Member — Thu, 26 Nov 2015 11:37:43 GMT

Hi Amerjit,

Here we go:

There are no short dumps in ST22

Re: SM66 - Work Process Failures

Former Member — Thu, 26 Nov 2015 11:39:35 GMT

trace file

Re: SM66 - Work Process Failures

JPReyes — Thu, 26 Nov 2015 12:23:49 GMT

I agree with Issaias, you need to check your workprocesses developer traces and find out what is making the dialog processes crash.

Regards, JP

Re: SM66 - Work Process Failures

Former Member — Thu, 26 Nov 2015 12:56:26 GMT

Hey Andy,

Didn't see any attachments to this reply. Can you upload dev_w0 from the work directory so that whoever is interested can have a look and try and help you out.

Cheers,

Amerjit

Re: SM66 - Work Process Failures

Former Member — Fri, 27 Nov 2015 11:40:53 GMT

Hi Andy,

The count tell the number of time the work process has restarted after the system restart.

In your case I see the main reason is heap memory. It is set low.

Work process restarts itself once it reaches heaplimit value or the heap configured for the work process

Parameters:

abap/heaplimit

abap/heap_area_dia

abap/heap_area_nondia

From your St02 screen-shot I can see the value set to heap is very small.

Regards,

Prithviraj.

Re: SM66 - Work Process Failures

Isaias_SAP — Tue, 01 Dec 2015 12:35:34 GMT

Hello,

abap/heaplimit should not be changed.

It has to be a low value (40MB - 60MB).

This is not a memory allocation limit.

Read the parameter documentation through the transaction RZ11 for more details.

Regards,

Isaías

Re: SM66 - Work Process Failures

Former Member — Sat, 23 Jan 2016 08:57:19 GMT

if possible restart the application when the system load is less .

hope this fix the issue .

Regards

Re: SM66 - Work Process Failures

mervin_joseph — Mon, 25 Jan 2016 07:16:04 GMT

Hi Andy,

Please check the below notes, which gives you the various reason for workprocess restart

Note 101717 - Automatic restart of SAP R/3 work processes

And still if you are seeing the "red" highlights(In Failure column) in SM50. Please follow the below steps to resolve this:

tcode SM50>> List >> Reset >> Failures (After resetting, the red highlights will disappear)

Little late reply but still it may help someone who experience this issue in future

Best Regards,
Mervin Joseph

Re: SM66 - Work Process Failures

Former Member — Mon, 25 Jan 2016 07:29:59 GMT

Many thanks Mervin - I shall take a look

Cheers

Andy

Re: SM66 - Work Process Failures

Isaias_SAP — Mon, 25 Jan 2016 19:34:07 GMT


tcode SM50>> List >> Reset >> Failures (After resetting, the red highlights will disappear)

Although this will reset the counter and make the red light go away, it will not fix the root cause of the issue .