Re: Fwd: restoring table - Mailing list pgsql-admin

From Tom Lane
Subject Re: Fwd: restoring table
Date
Msg-id 27168.1388672543@sss.pgh.pa.us
Whole thread Raw
In response to Fwd: restoring table  (sharilalipv <sharilalipv@gmail.com>)
Responses Re: Fwd: restoring table  (sharilalipv <sharilalipv@gmail.com>)
List pgsql-admin
sharilalipv <sharilalipv@gmail.com> writes:
> I could not  restore a table (4.1GB) in postgresql database server.

> 2014-01-01 18:12:31 IST LOG:  server process (PID 60667) was terminated by
> signal 9: Killed

OOM killer at work, evidently.  You should consider adjusting your kernel
settings to prevent memory overcommit.  However, for this particular case
that might not do much beyond allowing a more graceful failure.  I'm going
to guess that the reason the backend process is eating memory is that
there's a foreign key constraint on the table, or some other reason to
fire AFTER triggers for it, so that the trigger event list is getting big.
You would be best off dropping the foreign key(s) and then recreating them
after you've loaded the data --- this will likely be faster overall, as
well as less prone to memory bloat.

This advice as well as other useful info can be found at
http://www.postgresql.org/docs/9.3/static/populate.html

            regards, tom lane


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