Hello.
I've been testing my DB backup and restore procedure and I've run into
something I can't figure out. After recovering from a PITR backup, when
I do another pg_start_backup PostgreSQL attempts to re-archive the last
log again, which fails because it already exists in the archive. I'm
running the Ubuntu 7.04 version of PostgreSQL 8.2.4. Here's an example
log interspersed with what I was doing in the gaps (sorry for posting
the whole thing; I'm new to PostgreSQL so I'm not sure what's
significant and what isn't):
--------
2007-05-29 02:18:33 UTC LOG: archived transaction log file
"000000010000000000000012"
2007-05-29 02:18:34 UTC LOG: incomplete startup packet
2007-05-29 02:18:34 UTC LOG: received fast shutdown request
2007-05-29 02:18:34 UTC LOG: shutting down
2007-05-29 02:18:34 UTC LOG: database system is shut down
Deleted data directory and restored from base backup. Restarted DB:
2007-05-29 02:20:33 UTC LOG: could not load root certificate file
"root.crt": no SSL error reported
2007-05-29 02:20:33 UTC DETAIL: Will not verify client certificates.
2007-05-29 02:20:33 UTC LOG: database system was interrupted at
2007-05-29 02:16:06 UTC
2007-05-29 02:20:33 UTC LOG: starting archive recovery
2007-05-29 02:20:33 UTC LOG: restore_command =
"/usr/local/sbin/xlogrestore %f %p"
2007-05-29 02:20:33 UTC LOG: incomplete startup packet
2007-05-29 02:20:34 UTC LOG: restored log file
"000000010000000000000011.000118A0.backup" from archive
2007-05-29 02:20:34 UTC FATAL: the database system is starting up
2007-05-29 02:20:34 UTC FATAL: the database system is starting up
2007-05-29 02:20:35 UTC LOG: restored log file
"000000010000000000000011" from archive
2007-05-29 02:20:35 UTC LOG: checkpoint record is at 0/110118A0
2007-05-29 02:20:35 UTC LOG: redo record is at 0/110118A0; undo record
is at 0/0; shutdown FALSE
2007-05-29 02:20:35 UTC LOG: next transaction ID: 0/975; next OID: 24576
2007-05-29 02:20:35 UTC LOG: next MultiXactId: 1; next MultiXactOffset: 0
2007-05-29 02:20:35 UTC LOG: automatic recovery in progress
2007-05-29 02:20:35 UTC LOG: redo starts at 0/110118E8
2007-05-29 02:20:35 UTC FATAL: the database system is starting up
2007-05-29 02:20:35 UTC LOG: restored log file
"000000010000000000000012" from archive
2007-05-29 02:20:36 UTC FATAL: the database system is starting up
2007-05-29 02:20:36 UTC LOG: could not open file
"pg_xlog/000000010000000000000013" (log file 0, segment 19): No such
file or directory
2007-05-29 02:20:36 UTC LOG: redo done at 0/120000C8
2007-05-29 02:20:36 UTC FATAL: the database system is starting up
2007-05-29 02:20:37 UTC FATAL: the database system is starting up
2007-05-29 02:20:37 UTC FATAL: the database system is starting up
2007-05-29 02:20:38 UTC FATAL: the database system is starting up
2007-05-29 02:20:38 UTC FATAL: the database system is starting up
2007-05-29 02:20:39 UTC FATAL: the database system is starting up
2007-05-29 02:20:39 UTC FATAL: the database system is starting up
2007-05-29 02:20:39 UTC LOG: incomplete startup packet
2007-05-29 02:20:39 UTC LOG: restored log file
"000000010000000000000012" from archive
2007-05-29 02:20:39 UTC LOG: archive recovery complete
2007-05-29 02:20:40 UTC LOG: database system is ready
SELECT pg_switch_xlog(); (It doesn't make any difference if I do this
command or not)
2007-05-29 02:22:04 UTC LOG: archived transaction log file
"000000010000000000000013"
SELECT pg_start_backup('testbackup');
gzip: stdout: Broken pipe
2007-05-29 02:22:46 UTC LOG: archive command
"/usr/local/sbin/xlogarchive pg_xlog/000000010000000000000012
000000010000000000000012" failed: return code 256
gzip: stdout: Broken pipe
2007-05-29 02:22:48 UTC LOG: archive command
"/usr/local/sbin/xlogarchive pg_xlog/000000010000000000000012
000000010000000000000012" failed: return code 256
gzip: stdout: Broken pipe
2007-05-29 02:22:50 UTC LOG: archive command
"/usr/local/sbin/xlogarchive pg_xlog/000000010000000000000012
000000010000000000000012" failed: return code 256
2007-05-29 02:22:50 UTC WARNING: transaction log file
"000000010000000000000012" could not be archived: too many failures
--------
Thanks for any advice.
--
Jon
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