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Re: [help-gnubatch] Scheduled jobs disappear?

From: John Collins (Xi Software Ltd)
Subject: Re: [help-gnubatch] Scheduled jobs disappear?
Date: Tue, 01 Feb 2011 22:49:32 +0000
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On 01/02/11 22:13, Todd Jackson wrote:

On Tue, Jan 4, 2011 at 2:07 AM, John Collins (personal) <address@hidden> wrote:
On 04/01/11 04:27, Todd Jackson wrote:
I had something weird happen with my gnubatch installation today, all of the jobs disappeared from the gbch-q display and stopped running.  If I look in /usr/local/var/gnubatch the SPXXXXXXXX SOXXXXXXXX and ERXXXXXXXX files are still there.  Is there any way to get the system to recognize these jobs again without having to resubmit them?  Any ideas as to what could have triggered this problem?  I'm running gnubatch 1.2 on CentOS 5.5, x86_64, and I've been running gnubatch for a few months now without having a problem like this.

The last thing that I'm aware of that was being done with gnubatch was that someone had just attempted to submit a job with the following command:
gbch-r -r minutes:20 -A- -a --userName\ swg -a --userPass\ xxxxxxxx -a --textMap\ /usr/local/etc/swg_10.0_text_map.xml.gz -a --dailySize\ 10000000 -a --genUsers True -a -h Summary\ Daily\ Performance /usr/local/bin/

The person who was attempting to submit this job got a few syntax errors when they issued this command, and right after that we noticed that the gnubatch scheduler had no jobs queued.

Thanks in advance.

     -- Todd

Was there anything in the log file (in the spool directory) saying that the scheduler had terminated?

Was there perhaps something else running that trampled on the Shared Memory? I've seen this a good few times? The trouble is you create the key and get a handle number and whilst it is usually consecutive to the last handle number it often isn't and some software just assumes it is so it can grab "your" shared memory instead of its own with unfortunate effects.

It's really a bit hard from here to work out.

John Collins address@hidden
Phone: +44 (0)1707 883174 Mobile: +44 (0)7958 387247 Work Phone: +44 (0)1707 886110
3 Mandeville Rise, Welwyn Garden City, Herts, AL8 7JT, UK

I had what seems like the exact same issue again with gnubatch losing all of the jobs from the queue.  I looked at the joblog an did not see anything in there that looked out of the ordinary, just a bunch of jobs that were running.  One thing that I did notice this time, is that the gbch-q display was not showing any queued jobs at all, but the jobs were still running, at least they were until I did a gbch-quit and gbch-start.  Not sure if that is any help at all, but since this has happened to me twice now in the past month I'm wondering if there is any way to rescue the queued jobs after this has happened.  Any suggestions would be appreciated.

    -- Todd

This is all very strange I've never heard of this happening before.

You could try running "gbch-cjlist" to dump off the jobs.

I must get the XML job queues and saved jobs bit running.

John Collins address@hidden Xi Software Ltd

Phone: +44 (0)1707 886110 Home Phone: +44 (0)1707 883174
Mobile: +44 (0)7958 387247 (address@hidden)

Trading Address 3 Mandeville Rise, Welwyn Garden City, Herts, AL8 7JT, UK

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