7.3.2 pg_restore very slow

From: Saranya Sivakumar <sarlavk(at)yahoo(dot)com>
To: pgsqlperform <pgsql-performance(at)postgresql(dot)org>, pgsqlnovice <pgsql-novice(at)postgresql(dot)org>
Subject: 7.3.2 pg_restore very slow
Date: 2006-08-06 16:54:38
Message-ID: 20060806165438.35459.qmail@web51307.mail.yahoo.com
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Hi All,

I am trying to back up a full copy of one of our databases (14G) and restore it on another server. Both databases run 7.3.2 version. Though the restore completed successfully, it took 9 hours for the process to complete. The destination server runs Fedora Core 3 with 512 MB RAM and has 1 processor. I have also deferred referential intergrity checks during the restore. I tried to tune some parameters in the config file, but it still takes 9 hours.

I have tried this same procedure to restore a full copy, but using 8.1(pg_dump and pg_restore) on a different server and that process took only 2 hours for the same database. But we are unable to migrate to 8.1 at this point and stuck with 7.3.2.

I use a script to dump/restore. I can send the same if that information is needed.

Please give me some pointers on what else I should be looking at to reduce the restore time using 7.3.2 version.

Thanks,
Sincerely,
Saranya Sivakumar





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