I have an 8.02 postgresql database with about 180 GB in size, running on
2.6 RedHat kernel with 32 GB of RAM and 2 CPUs. I'm running the vacuum
full analyze command, and has been running for at least two consecutive
days with no other processes running (it's an offline loading server). I
tweaked the maintenanace_mem to its max (2 GB) with work_mem of 8M. I
have no issues with my checkpoints. I can still I/O activities against
the physical files of the "property" table and its two indexes (primary
key and r index). The property files are about 128GB and indexes are
about 15 GB. I have run the same maintenance job on a different box
(staging) with identical hardware config (except with 64 GB instead of
32) and took less than 12 hours. Any clue or tip is really
appreciated.
Also read a comment by Tom Lane, that terminating the process should be
crash-safe if I had to.
Thanks,
--
Husam
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