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Commit8c873bb

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Make the walwriter close it's handle to an old xlog segment if it's no longer
the current one. Not doing this would leave the walwriter with a handle to adeleted file if there was nothing for it to do for a long period of time,preventing the file from being completely removed.Reported by Tollef Fog Heen, and thanks to Heikki for some hand-holding withthe patch.
1 parent5a41c31 commit8c873bb

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1 file changed

+14
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lines changed
  • src/backend/access/transam

1 file changed

+14
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‎src/backend/access/transam/xlog.c

Lines changed: 14 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
77
* Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $PostgreSQL: pgsql/src/backend/access/transam/xlog.c,v 1.417 2010/06/03 21:02:11 petere Exp $
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* $PostgreSQL: pgsql/src/backend/access/transam/xlog.c,v 1.418 2010/06/09 10:54:45 mha Exp $
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*
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*-------------------------------------------------------------------------
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*/
@@ -2124,9 +2124,21 @@ XLogBackgroundFlush(void)
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flexible= false;/* ensure it all gets written */
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}
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/* Done if already known flushed */
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/*
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* If already known flushed, we're done. Just need to check if we
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* are holding an open file handle to a logfile that's no longer
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* in use, preventing the file from being deleted.
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*/
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if (XLByteLE(WriteRqstPtr,LogwrtResult.Flush))
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{
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if (openLogFile >=0) {
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if (!XLByteInPrevSeg(LogwrtResult.Write,openLogId,openLogSeg))
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{
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XLogFileClose();
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}
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}
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return;
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}
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#ifdefWAL_DEBUG
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if (XLOG_DEBUG)

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