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* Standby server crashes in master and REL9_5_STABLE branches
@ 2015-09-30 07:15 [email protected]
2015-09-30 07:30 ` Re: Standby server crashes in master and REL9_5_STABLE branches Michael Paquier <[email protected]>
0 siblings, 1 reply; 4+ messages in thread
From: [email protected] @ 2015-09-30 07:15 UTC (permalink / raw)
To: [email protected]
Hi,
Today, I found that standby server crashes with latest code of master branch and REL9_5_STABLE branch.
This happens not always but sometimes after doing pg_start_backup and pg_stop_backup for master server.
The below error messages were shown in standby server log:
FATAL: could not access status of transaction 9009
DETAIL: Could not read from file "pg_commit_ts/0000" at offset 90112: Success.
CONTEXT: xlog redo Transaction/COMMIT: 2015-09-30 15:52:41.924141+09
LOG: startup process (PID 23199) exited with exit code 1
LOG: terminating any other active server processes
Before this FATAL, there were some INFO but annoying messages:
LOG: file "pg_commit_ts/0000" doesn't exist, reading as zeroes
CONTEXT: xlog redo Transaction/COMMIT: 2015-09-30 15:47:14.747566+09; inval msgs: catcache 49 catcache 49 catcache 49 catcache 49
I cannot explain why but this crash seems to disappear if I moved HEAD to before commit 6b61955135e94b39d85571fdbb0c5a749af767f1.
Regards,
========
Takashi Ohnishi
[email protected]
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^ permalink raw reply [nested|flat] 4+ messages in thread
* Re: Standby server crashes in master and REL9_5_STABLE branches
2015-09-30 07:15 Standby server crashes in master and REL9_5_STABLE branches [email protected]
@ 2015-09-30 07:30 ` Michael Paquier <[email protected]>
2015-09-30 08:51 ` Re: Standby server crashes in master and REL9_5_STABLE branches [email protected]
2015-09-30 11:45 ` Re: Standby server crashes in master and REL9_5_STABLE branches Alvaro Herrera <[email protected]>
0 siblings, 2 replies; 4+ messages in thread
From: Michael Paquier @ 2015-09-30 07:30 UTC (permalink / raw)
To: [email protected]; +Cc: PostgreSQL mailing lists <[email protected]>; Masao Fujii <[email protected]>; Alvaro Herrera <[email protected]>; Petr Jelinek <[email protected]>
On Wed, Sep 30, 2015 at 4:15 PM, <[email protected]> wrote:
> FATAL: could not access status of transaction 9009
> DETAIL: Could not read from file "pg_commit_ts/0000" at offset 90112:
> Success.
> CONTEXT: xlog redo Transaction/COMMIT: 2015-09-30 15:52:41.924141+09
> LOG: startup process (PID 23199) exited with exit code 1
> LOG: terminating any other active server processes
>
> I cannot explain why but this crash seems to disappear if I moved HEAD to
> before commit 6b61955135e94b39d85571fdbb0c5a749af767f1.
>
Even if I have the feeling that Alvaro, Petr and/or Fujii-san already know
what is going on, do you have a backtrace at hand?
--
Michael
^ permalink raw reply [nested|flat] 4+ messages in thread
* Re: Standby server crashes in master and REL9_5_STABLE branches
2015-09-30 07:15 Standby server crashes in master and REL9_5_STABLE branches [email protected]
2015-09-30 07:30 ` Re: Standby server crashes in master and REL9_5_STABLE branches Michael Paquier <[email protected]>
@ 2015-09-30 08:51 ` [email protected]
1 sibling, 0 replies; 4+ messages in thread
From: [email protected] @ 2015-09-30 08:51 UTC (permalink / raw)
To: [email protected]; [email protected]; +Cc: [email protected]; [email protected]; [email protected]
No, I do not have a backtrace.
I 'm sorry about using misleading word ‘crash’.
The standby server did not cause process crash.
It exited abnormally.
Regards,
======
Takashi Ohnishi
[email protected]
From: Michael Paquier [mailto:[email protected]]
Sent: Wednesday, September 30, 2015 4:30 PM
To: SPS 大西 高史(三技術) <[email protected]>
Cc: PostgreSQL mailing lists <[email protected]>; Masao Fujii <[email protected]>; Alvaro Herrera <[email protected]>; Petr Jelinek <[email protected]>
Subject: Re: [HACKERS] Standby server crashes in master and REL9_5_STABLE branches
On Wed, Sep 30, 2015 at 4:15 PM, <[email protected]<mailto:[email protected]>> wrote:
FATAL: could not access status of transaction 9009
DETAIL: Could not read from file "pg_commit_ts/0000" at offset 90112: Success.
CONTEXT: xlog redo Transaction/COMMIT: 2015-09-30 15:52:41.924141+09
LOG: startup process (PID 23199) exited with exit code 1
LOG: terminating any other active server processes
I cannot explain why but this crash seems to disappear if I moved HEAD to before commit 6b61955135e94b39d85571fdbb0c5a749af767f1.
Even if I have the feeling that Alvaro, Petr and/or Fujii-san already know what is going on, do you have a backtrace at hand?
--
Michael
^ permalink raw reply [nested|flat] 4+ messages in thread
* Re: Standby server crashes in master and REL9_5_STABLE branches
2015-09-30 07:15 Standby server crashes in master and REL9_5_STABLE branches [email protected]
2015-09-30 07:30 ` Re: Standby server crashes in master and REL9_5_STABLE branches Michael Paquier <[email protected]>
@ 2015-09-30 11:45 ` Alvaro Herrera <[email protected]>
1 sibling, 0 replies; 4+ messages in thread
From: Alvaro Herrera @ 2015-09-30 11:45 UTC (permalink / raw)
To: Michael Paquier <[email protected]>; +Cc: [email protected]; PostgreSQL mailing lists <[email protected]>; Masao Fujii <[email protected]>; Petr Jelinek <[email protected]>
Michael Paquier wrote:
> On Wed, Sep 30, 2015 at 4:15 PM, <[email protected]> wrote:
>
> > FATAL: could not access status of transaction 9009
> > DETAIL: Could not read from file "pg_commit_ts/0000" at offset 90112:
> > Success.
> > CONTEXT: xlog redo Transaction/COMMIT: 2015-09-30 15:52:41.924141+09
> > LOG: startup process (PID 23199) exited with exit code 1
> > LOG: terminating any other active server processes
> >
> > I cannot explain why but this crash seems to disappear if I moved HEAD to
> > before commit 6b61955135e94b39d85571fdbb0c5a749af767f1.
Sigh. Will fix.
--
Álvaro Herrera http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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2015-09-30 07:15 Standby server crashes in master and REL9_5_STABLE branches [email protected]
2015-09-30 07:30 ` Michael Paquier <[email protected]>
2015-09-30 08:51 ` [email protected]
2015-09-30 11:45 ` Alvaro Herrera <[email protected]>
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