[GE users] restart qmaster / dbwriter

jana jana.olivova at sun.com
Wed Nov 26 17:21:54 GMT 2008

Hi Yann,

2.) I would like to add that the reporting file has not effect on 
running jobs. 

1.) If you have set the DBWRITER_REPORTING_FILE parameter in the 
dbwriter.conf file to a different value than 
$SGE_ROOT/$SGE_CELL/common/reporting then it means that dbwriter is not 
parsing the reporting file that qmaster produces. I am not sure what 
file it is parsing in that case.  I assume this is intentional, because 
you don't want this file to get consumed by dbwriter but be parsed by 
your own program.

So, parsing (reading) of the reporting file is not connected to qmaster. 
Qmaster creates file, dbwriter in predefined intervals checks if the 
file, specified in the dbwriter.conf, exists and then renames it to 
reporting.processing, parses this new file and stores the data in the 
database. Once it is done, it deletes this reporting.processing file. 
Meanwhile, the qmaster had created a new reporting file.

Not sure if that answered your question, but hopefully it had shed some 
light on how it all works together.


Jana Olivova

On 11/26/08 13:58, Yann JOBIC wrote:
> Hello,
> I've got a working gridengine, with a lot of jobs running.
> As i'm working on interfacing gridengine and globus, I changed the 
> reporting file in dbwriter.conf
> Here's my questions :
> 1) is it possible to reread this file without restarting the qmaster ?
> 2) In case of restarting, will it keep all my jobs ok ?
> Many Thanks,
> Yann


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