[GE users] resetting job number (jobseqnum)

reuti reuti at staff.uni-marburg.de
Tue Jan 12 20:51:54 GMT 2010


Hi,

Am 12.01.2010 um 21:00 schrieb cjf001:

> Guys -
>
> I'm looking for a way to reset the job numbers back to "1" or  
> something
> low. I read this webpage:

was there any running or waiting job in the system?

-- Reuti


> http://gridengine.info/2007/08/24/reset-grid-engine-job-id-counter
>
> which says this:
>
>> Reset Grid Engine Job ID Counter
>> Posted by chris on Friday, August 24, 2007
>>
>> Update 12/2009: It has been pointed out that the actual rollover  
>> value for the SGE JOB ID is 9,999,999.
>>
>> In a recent post, Sathish asks:
>>
>>
>> My Current scenario: The job-ids crossed 5000. I'm quite aware  
>> that i can go with the job-id's till 999999. My Expectation: Is  
>> there any option to reset the existing job-id's such that the next  
>> job i submit will follow from 1 to ....
>> Reuti is quick to mention that the Job ID counter is kept in a  
>> plaintext file at location:
>>
>>
>> $SGE_ROOT/default/spool/qmaster/jobseqnumber... this does require  
>> a restart of Grid Engine to take effect.
>>
>> In another reply, Rayson offers a hint to people interested in  
>> altering the default value at which the SGE Job ID counter is  
>> reset back to 0. Apparently this value is encoded as "MAX_SEQNUM"  
>> in the SGE source code.
>>
>
> However, it doesn't seem to work.  I stop the sgemaster process on  
> the qmaster,
> edit the $SGE_ROOT/default/spool/qmaster/jobseqnumber file (this  
> should actually
> say "$SGE_ROOT/$SGE_CELL/spool/qmaster/jobseqnum" in that webpage,  
> I think), and
> restart the sgemaster process - but after a few seconds that file  
> gets changed
> back to  the large number that it contained before I editted it.   
> Any ideas
> on how to do this, or what I'm missing ?
>
>     Thanks,
>
>         John
>
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