Re: Hot Standby: too many KnownAssignedXids

From: Joachim Wieland <joe(at)mcknight(dot)de>
To: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, Fujii Masao <masao(dot)fujii(at)gmail(dot)com>
Cc: pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Hot Standby: too many KnownAssignedXids
Date: 2010-11-24 04:56:56
Message-ID: AANLkTikyUTTUTzvN5rqrme2mWZBPstV=P8tAmwR-y_jW@mail.gmail.com
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On Tue, Nov 23, 2010 at 8:45 AM, Heikki Linnakangas
<heikki(dot)linnakangas(at)enterprisedb(dot)com> wrote:
> On 19.11.2010 23:46, Joachim Wieland wrote:
>>
>> FATAL:  too many KnownAssignedXids. head: 0, tail: 0, nxids: 9978,
>> pArray->maxKnownAssignedXids: 6890
>
> Hmm, that's a lot of entries in KnownAssignedXids.
>
> Can you recompile with WAL_DEBUG, and run the recovery again with
> wal_debug=on ? That will print all the replayed WAL records, which is a lot
> of data, but it might give a hint what's going on.

Sure, but this gives me only one more line:

[...]
LOG: redo starts at 1F8/FC00E978
LOG: REDO @ 1F8/FC00E978; LSN 1F8/FC00EE90: prev 1F8/FC00E930; xid
385669; len 21; bkpb1: Heap - insert: rel 1663/16384/18373; tid
3829898/23
FATAL: too many KnownAssignedXids
CONTEXT: xlog redo insert: rel 1663/16384/18373; tid 3829898/23
LOG: startup process (PID 4587) exited with exit code 1
LOG: terminating any other active server processes

Joachim

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