Post questions here relative to DataStage Enterprise/PX Edition for such areas as Parallel job design, Parallel datasets, BuildOps, Wrappers, etc.
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sateeshbabu
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Posts: 48 Joined: Sat Oct 22, 2005 9:56 am
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by sateeshbabu » Wed Sep 10, 2008 3:37 am
Hi,
We are using Dataset in one of the jobs.
We are using the update policy as "Overwrite" for Dataset.This job is running fine but some times we are getting like below.
Unable to open descriptor file to update: Permission denied
Error updating ORCHESTRATE File Dataset descriptor segment information for '/tmp//meas.ds'.
Error while truncating data set "/tmp//meas.ds".
filesystem related error
Can you please let us know what is the problem causing.
sjordery
Premium Member
Posts: 202 Joined: Thu Jun 08, 2006 5:58 am
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by sjordery » Wed Jul 29, 2009 9:14 am
I had this - tried to work around it, with little joy. Permissions fine on all the relevant directories etc.
In the end, I had to delete (manually) and recreate the dataset, at which point the error ceased. I think it was a corrupted pointer.
ArndW
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Posts: 16318 Joined: Tue Nov 16, 2004 9:08 am
Location: Germany
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by ArndW » Wed Jul 29, 2009 9:24 am
I would guess that the DataStage user has only "R" and not "RW" rights to "tmp//meas.ds" because of the error message
"Unable to open descriptor file to update: Permission denied "
priyadarshikunal
Premium Member
Posts: 1735 Joined: Thu Mar 01, 2007 5:44 am
Location: Troy, MI
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by priyadarshikunal » Wed Jul 29, 2009 9:45 am
/tmp//meas.ds
why the double slash?
Have you stripped the absolute path or it is the exact value you are passing?
Priyadarshi Kunal
Genius may have its limitations, but stupidity is not thus handicapped.
sjordery
Premium Member
Posts: 202 Joined: Thu Jun 08, 2006 5:58 am
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by sjordery » Wed Jul 29, 2009 10:40 am
[quote="ArndW"]I would guess that the DataStage user has only "R" and not "RW" rights to "tmp//meas.ds" because of the error message
[quote] "Unable to open descriptor file to update: Permission denied "[/quote][/quote]
Oops - my bad, sorry. The Group had R only permissions.
keshav0307
Premium Member
Posts: 783 Joined: Mon Jan 16, 2006 10:17 pm
Location: Sydney, Australia
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by keshav0307 » Wed Jul 29, 2009 6:36 pm
was the job run by same user everytime?