From 083cc494228c55f38d2fcc9ec19c957eff7adb00 Mon Sep 17 00:00:00 2001 From: Heikki Linnakangas <heikki.linnakangas@iki.fi> Date: Wed, 13 Apr 2011 21:33:59 +0300 Subject: [PATCH] Revert the patch to check if we've reached end-of-backup also when doing crash recovery, and throw an error if not. hubert depesz lubaczewski pointed out that that situation also happens in the crash recovery following a system crash that happens during an online backup. We might want to do something smarter in 9.1, like put the check back for backups taken with pg_basebackup, but that's for another patch. --- src/backend/access/transam/xlog.c | 27 ++++++++++++++++++++++----- 1 file changed, 22 insertions(+), 5 deletions(-) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index eac61c5727..56f32f6ed8 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -6322,12 +6322,28 @@ StartupXLOG(void) (XLByteLT(EndOfLog, minRecoveryPoint) || !XLogRecPtrIsInvalid(ControlFile->backupStartPoint))) { - if (reachedStopPoint) /* stopped because of stop request */ + if (reachedStopPoint) + { + /* stopped because of stop request */ ereport(FATAL, (errmsg("requested recovery stop point is before consistent recovery point"))); - else /* ran off end of WAL */ - ereport(FATAL, - (errmsg("WAL ends before consistent recovery point"))); + } + else + { + /* + * Ran off end of WAL before reaching end-of-backup WAL record, + * or minRecoveryPoint. That's usually a bad sign, indicating that + * you tried to recover from an online backup but never called + * pg_stop_backup(), or you didn't archive all the WAL up to that + * point. However, this also happens in crash recovery, if the + * system crashes while an online backup is in progress. We + * must not treat that as an error, or the database will refuse + * to start up. + */ + if (InArchiveRecovery) + ereport(FATAL, + (errmsg("WAL ends before consistent recovery point"))); + } } /* @@ -7910,7 +7926,8 @@ xlog_redo(XLogRecPtr lsn, XLogRecord *record) * record, the backup was cancelled and the end-of-backup record will * never arrive. */ - if (!XLogRecPtrIsInvalid(ControlFile->backupStartPoint)) + if (InArchiveRecovery && + !XLogRecPtrIsInvalid(ControlFile->backupStartPoint)) ereport(ERROR, (errmsg("online backup was cancelled, recovery cannot continue"))); -- 2.40.0