[GE users] db_checkpoint keeps running

Rayson Ho rayrayson at gmail.com
Tue Dec 18 00:07:39 GMT 2007


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With the "-1" flag, db_checkpoint should automatically exit after it
finishes checkpointing the DB log.

May be you can provide more information about your setup... also,
debugging why db_checkpoint -1 fails to exit is useful too...

Rayson



On Dec 17, 2007 6:47 PM, Ondrej Bojar <bojar at ufal.ms.mff.cuni.cz> wrote:
> Hi, all.
>
> Our SGE has recently started leaving db_checkpoint running. Because
> db_checkpoint appears to be launched regularly (every minute or so), our master
> node soon runs out of open files or process numbers.
>
> Any ideas what could be causing the problem? Some broken Berkeley DB? Some
> hanging lockfiles? Someones faulty job?
>
> This is one entry from 'ps auxwf' (there are more than 600 such entries now):
>
> sgeadmin  2697  0.0  0.3   9896  3216 ?        S    Dec17   0:00  \_ crond
>
> sgeadmin  2698  0.0  0.0   2556   960 ?        Ss   Dec17   0:00  |   \_
> /bin/sh /net/projects/SGE/AMD64_6.1u2/util/bdb_checkpoint.sh
> /net/projects/SGE/AMD64_6.1u2 default /net/projects/SGE/AMD64_6.1u2/default/spooldb
>
> sgeadmin  2762  0.0  0.0   2556   500 ?        S    Dec17   0:00  |       \_
> /bin/sh /net/projects/SGE/AMD64_6.1u2/util/bdb_checkpoint.sh
> /net/projects/SGE/AMD64_6.1u2 default /net/projects/SGE/AMD64_6.1u2/default/spooldb
>
> sgeadmin  2763  0.0  0.0   3528   792 ?        S    Dec17   0:22  |           \_
> /net/projects/SGE/AMD64_6.1u2/utilbin/lx24-x86/db_checkpoint -1 -h
> /net/projects/SGE/AMD64_6.1u2/default/spooldb
>
> Thanks for hints, Ondrej.
>
> --
> Ondrej Bojar (mailto:obo at cuni.cz / bojar at ufal.mff.cuni.cz)
> http://www.cuni.cz/~obo
>
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