Re: [HACKERS] PANIC while doing failover (streaming replication)

Hi,

Any news on this issue? My slave server is not trusted, all the warnings below
are related to
indexes of the main tables:

2012-06-14 11:46:23 BRT [18654]: [34603-1] user=,db= LOG: recovery restart
point at 435/4E899CE8
2012-06-14 11:46:23 BRT [18654]: [34604-1] user=,db= DETAIL: last
completed transaction was at log time 2012-06-14 11:46:22.770348-03
2012-06-14 11:48:53 BRT [18654]: [34605-1] user=,db= LOG: restartpoint
starting: time
2012-06-14 11:51:09 BRT [18653]: [18-1] user=,db= LOG: received promote
request
2012-06-14 11:51:09 BRT [11879]: [2-1] user=,db= FATAL: terminating
walreceiver process due to administrator command
2012-06-14 11:51:09 BRT [18653]: [19-1] user=,db= LOG: invalid record
length at 435/5079CAE8
2012-06-14 11:51:09 BRT [18653]: [20-1] user=,db= LOG: redo done at
435/5079CAA8
2012-06-14 11:51:09 BRT [18653]: [21-1] user=,db= LOG: last completed
transaction was at log time 2012-06-14 11:51:08.969771-03
2012-06-14 11:51:09 BRT [18653]: [22-1] user=,db= LOG: selected new
timeline ID: 2
2012-06-14 11:51:09 BRT [18653]: [23-1] user=,db= LOG: archive recovery
complete
2012-06-14 11:51:09 BRT [18653]: [24-1] user=,db= WARNING: page 193569 of
relation base/16407/80416524 was uninitialized
2012-06-14 11:51:09 BRT [18653]: [25-1] user=,db= WARNING: page 129229 of
relation base/16407/38334886 was uninitialized
2012-06-14 11:51:09 BRT [18653]: [26-1] user=,db= WARNING: page 134146 of
relation base/16407/38334880 was uninitialized
2012-06-14 11:51:09 BRT [18653]: [27-1] user=,db= WARNING: page 318013 of
relation base/16407/38334887 was uninitialized
2012-06-14 11:51:09 BRT [18653]: [28-1] user=,db= WARNING: page 134143 of
relation base/16407/38334880 was uninitialized
2012-06-14 11:51:09 BRT [18653]: [29-1] user=,db= WARNING: page 156203 of
relation base/16407/38334883 was uninitialized
2012-06-14 11:51:09 BRT [18653]: [30-1] user=,db= WARNING: page 318009 of
relation base/16407/38334887 was uninitialized
2012-06-14 11:51:09 BRT [18653]: [31-1] user=,db= WARNING: page 370150 of
relation base/16407/38334888 was uninitialized
2012-06-14 11:51:09 BRT [18653]: [32-1] user=,db= WARNING: page 133811 of
relation base/16407/38334879 was uninitialized
2012-06-14 11:51:09 BRT [18653]: [33-1] user=,db= WARNING: page 317963 of
relation base/16407/38334884 was uninitialized
2012-06-14 11:51:09 BRT [18653]: [34-1] user=,db= WARNING: page 133808 of
relation base/16407/38334879 was uninitialized
2012-06-14 11:51:09 BRT [18653]: [35-1] user=,db= WARNING: page 133809 of
relation base/16407/38334879 was uninitialized
2012-06-14 11:51:09 BRT [18653]: [36-1] user=,db= WARNING: page 133810 of
relation base/16407/38334879 was uninitialized
2012-06-14 11:51:09 BRT [18653]: [37-1] user=,db= WARNING: page 129231 of
relation base/16407/38334886 was uninitialized
2012-06-14 11:51:09 BRT [18653]: [38-1] user=,db= WARNING: page 14329 of
relation base/16407/80430266 was uninitialized
2012-06-14 11:51:09 BRT [18653]: [39-1] user=,db= WARNING: page 134145 of
relation base/16407/38334880 was uninitialized
2012-06-14 11:51:09 BRT [18653]: [40-1] user=,db= WARNING: page 134144 of
relation base/16407/38334880 was uninitialized
2012-06-14 11:51:09 BRT [18653]: [41-1] user=,db= WARNING: page 317957 of
relation base/16407/38334884 was uninitialized
2012-06-14 11:51:09 BRT [18653]: [42-1] user=,db= WARNING: page 129230 of
relation base/16407/38334886 was uninitialized
2012-06-14 11:51:09 BRT [18653]: [43-1] user=,db= WARNING: page 156201 of
relation base/16407/38334883 was uninitialized
2012-06-14 11:51:09 BRT [18653]: [44-1] user=,db= PANIC: WAL contains
references to invalid pages
2012-06-14 11:51:09 BRT [18651]: [4-1] user=,db= LOG: startup process (PID
18653) was terminated by signal 6: Aborted
2012-06-14 11:51:09 BRT [18651]: [5-1] user=,db= LOG: terminating any
other active server processes

PostgreSQL version 9.1.3.

Thanks in advance for any suggestions.

-Matheus

2011/7/1 Fujii Masao <masao(dot)fujii(at)gmail(dot)com>

> On Fri, Jul 1, 2011 at 2:18 PM, Mikko Partio <mpartio(at)gmail(dot)com> wrote:
> > Hello list
> > I have two a machine cluster with PostgreSQL 9.0.4 and streaming
> > replication. In a normal situation I did a failover -- touched the
> trigger
> > file in standby to promote it to production mode. I have done this
> > previously without any complications but now the
> to-be-production-database
> > had a PANIC and shut itself down. From the logs:
> > postgres[10751]: [2-1] 2011-06-30 17:25:24 EEST [10751]: [1-1] user=,db=
> > LOG: streaming replication successfully connected to primary
> > postgres[10736]: [10-1] 2011-07-01 07:50:29 EEST [10736]: [10-1]
> user=,db=
> > LOG: trigger file found: /postgresql/data/finish_replication.trigger
> > postgres[10751]: [3-1] 2011-07-01 07:50:29 EEST [10751]: [2-1] user=,db=
> > FATAL: terminating walreceiver process due to administrator command
> > postgres[10736]: [11-1] 2011-07-01 07:50:30 EEST [10736]: [11-1]
> user=,db=
> > LOG: redo done at AE/8B1855C8
> > postgres[10736]: [12-1] 2011-07-01 07:50:30 EEST [10736]: [12-1]
> user=,db=
> > LOG: last completed transaction was at log time 2011-07-01
> > 07:50:14.67424+03
> > postgres[10736]: [13-1] 2011-07-01 07:50:30 EEST [10736]: [13-1]
> user=,db=
> > LOG: restored log file "00000006000000AE0000008B" from archive
> > postgres[10736]: [14-1] 2011-07-01 07:50:30 EEST [10736]: [14-1]
> user=,db=
> > LOG: selected new timeline ID: 7
> > postgres[10736]: [15-1] 2011-07-01 07:50:30 EEST [10736]: [15-1]
> user=,db=
> > LOG: restored log file "00000006.history" from archive
> > postgres[10736]: [16-1] 2011-07-01 07:50:30 EEST [10736]: [16-1]
> user=,db=
> > LOG: archive recovery complete
> > postgres[10736]: [17-1] 2011-07-01 07:50:30 EEST [10736]: [17-1]
> user=,db=
> > WARNING: page 68975 of relation base/3711580/4398155 was uninitialized
> > postgres[10736]: [18-1] 2011-07-01 07:50:30 EEST [10736]: [18-1]
> user=,db=
> > WARNING: page 782 of relation base/3711580/4395394 was uninitialized
> > postgres[10736]: [19-1] 2011-07-01 07:50:30 EEST [10736]: [19-1]
> user=,db=
> > WARNING: page 68948 of relation base/3711580/4398155 was uninitialized
> > postgres[10736]: [20-1] 2011-07-01 07:50:30 EEST [10736]: [20-1]
> user=,db=
> > WARNING: page 68986 of relation base/3711580/4398155 was uninitialized
> > [ there are maybe 50 lines of these WARNING messages for all together six
> > different relations, all indexes ]
> > postgres[10736]: [73-1] 2011-07-01 07:50:31 EEST [10736]: [73-1]
> user=,db=
> > PANIC: WAL contains references to invalid pages
> > postgres[10727]: [2-1] 2011-07-01 07:50:31 EEST [10727]: [2-1] user=,db=
> > LOG: startup process (PID 10736) was terminated by signal 6: Aborted
> > postgres[10727]: [3-1] 2011-07-01 07:50:31 EEST [10727]: [3-1] user=,db=
> > LOG: terminating any other active server processes
> > Then I started postgres as it was shut down:
> > postgres[12191]: [1-1] 2011-07-01 07:50:59 EEST [12191]: [1-1] user=,db=
> > LOG: database system was interrupted while in recovery at log time
> > 2011-07-01 07:44:02 EEST
> > postgres[12191]: [1-2] 2011-07-01 07:50:59 EEST [12191]: [2-1] user=,db=
> > HINT: If this has occurred more than once some data might be corrupted
> and
> > you might need to choose an earlier recovery target.
> > postgres[12191]: [2-1] 2011-07-01 07:50:59 EEST [12191]: [3-1] user=,db=
> > LOG: database system was not properly shut down; automatic recovery in
> > progress
> > postgres[12191]: [3-1] 2011-07-01 07:50:59 EEST [12191]: [4-1] user=,db=
> > LOG: redo starts at AE/8B13E398
> > postgres[12191]: [4-1] 2011-07-01 07:50:59 EEST [12191]: [5-1] user=,db=
> > LOG: consistent recovery state reached at AE/8C000000
> > postgres[12191]: [5-1] 2011-07-01 07:50:59 EEST [12191]: [6-1] user=,db=
> > LOG: unexpected pageaddr AE/6E000000 in log file 174, segment 140,
> offset 0
> > postgres[12191]: [6-1] 2011-07-01 07:50:59 EEST [12191]: [7-1] user=,db=
> > LOG: redo done at AE/8B1855C8
> > postgres[12191]: [7-1] 2011-07-01 07:50:59 EEST [12191]: [8-1] user=,db=
> > LOG: last completed transaction was at log time 2011-07-01
> > 07:50:14.67424+03
> > postgres[12194]: [1-1] 2011-07-01 07:50:59 EEST [12194]: [1-1] user=,db=
> > LOG: autovacuum launcher started
> > postgres[12189]: [1-1] 2011-07-01 07:50:59 EEST [12189]: [1-1] user=,db=
> > LOG: database system is ready to accept connections
> > Are these log messages something to worry about?
>
> http://archives.postgresql.org/pgsql-hackers/2008-12/msg01335.php
> According to the above thread, this issue seems to exist for a few years,
> and be unsolved yet. Could you provide a self-contained test case?
>
> Regards,
>
> --
> Fujii Masao
> NIPPON TELEGRAPH AND TELEPHONE CORPORATION
> NTT Open Source Software Center
>
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