From: | Justin Pryzby <pryzby(at)telsasoft(dot)com> |
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To: | Thomas Munro <thomas(dot)munro(at)gmail(dot)com> |
Cc: | "Shinoda, Noriyoshi (PN Japan FSIP)" <noriyoshi(dot)shinoda(at)hpe(dot)com>, Tomas Vondra <tomas(dot)vondra(at)enterprisedb(dot)com>, Stephen Frost <sfrost(at)snowman(dot)net>, Andres Freund <andres(at)anarazel(dot)de>, Jakub Wartak <Jakub(dot)Wartak(at)tomtom(dot)com>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, Dmitry Dolgov <9erthalion6(at)gmail(dot)com>, David Steele <david(at)pgmasters(dot)net>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | pg15b3: recovery fails with wal prefetch enabled |
Date: | 2022-08-31 14:01:28 |
Message-ID: | 20220831140128.GS31833@telsasoft.com |
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Lists: | pgsql-hackers |
An internal VM crashed last night due to OOM.
When I tried to start postgres, it failed like:
< 2022-08-31 08:44:10.495 CDT >LOG: checkpoint starting: end-of-recovery immediate wait
< 2022-08-31 08:44:10.609 CDT >LOG: request to flush past end of generated WAL; request 1201/1CAF84F0, current position 1201/1CADB730
< 2022-08-31 08:44:10.609 CDT >CONTEXT: writing block 0 of relation base/16881/2840_vm
< 2022-08-31 08:44:10.609 CDT >ERROR: xlog flush request 1201/1CAF84F0 is not satisfied --- flushed only to 1201/1CADB730
< 2022-08-31 08:44:10.609 CDT >CONTEXT: writing block 0 of relation base/16881/2840_vm
< 2022-08-31 08:44:10.609 CDT >FATAL: checkpoint request failed
I was able to start it with -c recovery_prefetch=no, so it seems like
prefetch tried to do too much. The VM runs centos7 under qemu.
I'm making a copy of the data dir in cases it's needed.
--
Justin
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