[ADMIN] auto vacuum errors

[Isabella Ghiurea]

HI Gurus
I'm seeing a issue with some temp tables in contrib_regression db , the
auto vacuum job will not run for this tables due some files/QID's
missing how can I fix this ?
The temp tables are growing too fast and they don't get
empty/clean-up...any tips ? I 'm running PGSQL 8.3.6 on RHES.
Isabella

[Tom Lane]

Post by Isabella Ghiurea
I'm seeing a issue with some temp tables in contrib_regression db , the
auto vacuum job will not run for this tables due some files/QID's
missing how can I fix this ?

Um ... in general, autovacuum just silently ignores temp tables, because
it doesn't have any way to access their contents. (One of the reasons
that temp tables are fast is that the backend owning a temp table keeps
its data in local buffers, not in shared buffers that another process
could access.) I wouldn't expect any "missing file" complaints though.
What exactly were you seeing?

regards, tom lane

[Isabella Ghiurea]

Hi Tom ,
Here is my error , the missing files were removed by mistake , I have
another similar db cfg with this tables:spherrtmp% and no issues.
I 'm thinking to restore this tables content from this second db ,
will this eliminate the auto vacuum error ?

07:45:59.770 PDT,,,31112,,4ff5a8a7.7988,5,,2012-07-05 07:45:59
PDT,19/2479,0,ERROR,58P01,"could not open relation 26384/247389/248165:
No such file or directory",,,,,"automatic vacuum of table
""contrib_regression.public.spheretmp5""",,,
2012-07-05 07:45:59.770 PDT,,,31112,,4ff5a8a7.7988,6,,2012-07-05
07:45:59 PDT,19/2481,0,ERROR,58P01,"could not open relation
26384/247389/248174: No such file or directory",,,,,"automatic vacuum of
table ""contrib_regression.public.spheretmp6""",,,

Post by Tom Lane

Post by Isabella Ghiurea
I'm seeing a issue with some temp tables in contrib_regression db , the
auto vacuum job will not run for this tables due some files/QID's
missing how can I fix this ?

Um ... in general, autovacuum just silently ignores temp tables, because
it doesn't have any way to access their contents. (One of the reasons
that temp tables are fast is that the backend owning a temp table keeps
its data in local buffers, not in shared buffers that another process
could access.) I wouldn't expect any "missing file" complaints though.
What exactly were you seeing?
regards, tom lane

--
-----------------------------------------------------------
Isabella A. Ghiurea

***@nrc-cnrc.gc.ca
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National Research Council of Canada, Herzberg Institute of Astrophysics
5071 West Saanich Road, Victoria BC V9E 2E7, Canada
Phone: [phone] fax: [phone]

[Tom Lane]

Post by Isabella Ghiurea
Here is my error , the missing files were removed by mistake , I have
another similar db cfg with this tables:spherrtmp% and no issues.
I 'm thinking to restore this tables content from this second db ,
will this eliminate the auto vacuum error ?

What you ought to do is drop the tables that are reported as causing the
error. Or the whole database --- are you actually doing something
useful in contrib_regression, or is that just left over from testing?

regards, tom lane