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Re: incorrect checksum detected on "global/pg_filenode.map" when VACUUM FULL is executed - Mailing list pgsql-general

From John R Pierce
Subject Re: incorrect checksum detected on "global/pg_filenode.map" when VACUUM FULL is executed
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Msg-id ca496ad7-42ee-219a-2190-f28923781546@hogranch.com
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In response to incorrect checksum detected on "global/pg_filenode.map" when VACUUM FULL is executed  (Tatsuki Kadomoto <tatsuki.kadomoto@proceranetworks.com>)
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On 8/21/2016 8:27 PM, Tatsuki Kadomoto wrote:


I see incorrect checksum detected on "global/pg_filenode.map" when "VACUUM FULL" is executed.

The error message didn't repeat. It showed up only once.

Is this expected? Can someone give me a plausible scenario why this happened?


Aug 16 20:51:19 postgres[22329]: [2-1] FATAL:  relation mapping file "global/pg_filenode.map" contains incorrect checksum


It looks like it's pretty rare and I have seen it only once at 2 different machines.


PosgreSQL version is 9.2.4.



that suggests unreliable hardware.  does this server not have ECC memory ?


-- 
john r pierce, recycling bits in santa cruz

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