On 04/09/2013 09:21 AM, Stephen R. van den Berg wrote:
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Looking at global/11787, doesn't reveal any obvious corruption.
The server was running with:
synchronous_commit = off
full_page_writes = off
full_page_writes = off is the problem.
From the docs:
Turning this parameter off speeds normal operation, but might lead to
either unrecoverable data corruption, or silent data corruption, after a
system failure. The risks are similar to turning off fsync, though
smaller, and it should be turned off only based on the same
circumstances recommended for that parameter.
http://www.postgresql.org/docs/9.0/static/runtime-config-wal.html#GUC-FULL-PAGE-WRITES
Sincerely,
Joshua D. Drake
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