[Moabusers] problems with showstats -u

Douglas Wightman wightman at clusterresources.com
Mon Jul 2 09:40:33 MDT 2007


Moab keeps this information in the .moab.ck file.  The DAY and WEEK
files are used for profiling information.  

The .moab.ck file will have information about the various objects in
Moab (jobs, nodes, users, groups, accounts).  You should be able to
search in that file for a particular user whose data seems wrong.

On another note, anybody using the profiling statistics should
immediately upgrade to Moab 5.1.0p5.  

- Douglas

On Sun, 2007-07-01 at 00:06 -0400, David Backeberg wrote:
> We are running moab version 4.2.2b1.
> 
> We use
> showstats -u
> 
> to dump information about user utilization of the cluster, like how
> many jobs they've completed and how much time their jobs are getting.
> This is also helpful when we help tune job scripts, as we can see when
> the users request much more time than what the job requires.
> 
> Recently, we brought the Moab service and the machines down for
> scheduled maintenance. When the machines came back up, the
> showstats -u
> 
> output was corrupt, in that some users had now used less time than
> before the downtime. Some newer users were no longer listed in the
> statistics at all. The output itself is still formatted correctly, but
> it's like Moab is somehow ignorant to some of the data it should be
> using to calculate these values.
> 
> Could somebody please explain more about how Moab actually tracks,
> maintains, and updates the information displayed by
> showstats -u
> 
> We keep our logs in a directory that seems to not have any data
> corruptions, but is there a way to prod Moab into describing whether
> there are any problems parsing a particular file, or perhaps if some
> file may be missing? I found files in /var/spool/moab/stats/ with
> names like
> DAY.date, events.date, and WEEK.date
> 
> I assume Moab stores these stats values daily, and then keeps adding
> to the previous day's total, but maybe something more sophisticated is
> going on. Please suggest how to troubleshoot my stats problems.
> 
> In fact, the DAY.date and WEEK.date files just say <Data></Data> and
> don't have any actual data in them other then the pair of tags.
> 
> The events.date seem to have the actual useful information, like how
> long a job took to complete and who was running it.
> 
> Ideas?
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