Re: pgsql: Fast promote mode skips checkpoint at end of recovery.

From: Simon Riggs <simon(at)2ndQuadrant(dot)com>
To: Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, Heikki Linnakangas <hlinnakangas(at)vmware(dot)com>
Cc: pgsql-committers(at)postgresql(dot)org
Subject: Re: pgsql: Fast promote mode skips checkpoint at end of recovery.
Date: 2013-01-30 17:26:26
Message-ID: CA+U5nMJGJkiLH-+GH+NHvrZm=czxQjeRvZn4umODH2sL8kcMZQ@mail.gmail.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-committers pgsql-hackers

On 29 January 2013 16:51, Simon Riggs <simon(at)2ndquadrant(dot)com> wrote:
> On 29 January 2013 16:38, Fujii Masao <masao(dot)fujii(at)gmail(dot)com> wrote:
>
>> On second thought, we don't need such a complicated test case to produce
>> the problem which derives from the same cause of reported problem. The
>> procedure to produce the problem is:
>>
>> 1. Set up one master (A) and one standby (B)
>> 2. Promote (B) with fast mode after running pgbench -i -s 10
>> 3. Execute the write transaction on new master (B)
>> 4. Shut down (B) with immediate mode before end-of-recovery checkpoint
>> has been completed
>> 5. Restart (B)
>>
>> Then you can confirm that the write transaction that you executed in #3 has
>> been lost.
>
> Thanks for the test case, that was quick!

OK, I can confirm this bug.

This needs more work as is, so I'll revert and re-post.

--
Simon Riggs http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services

In response to

Responses

Browse pgsql-committers by date

  From Date Subject
Next Message Tom Lane 2013-01-30 19:18:26 pgsql: Fix grammar for subscripting or field selection from a sub-SELEC
Previous Message Peter Eisentraut 2013-01-30 04:01:08 pgsql: pg_regress: Allow overriding diff options

Browse pgsql-hackers by date

  From Date Subject
Next Message Dimitri Fontaine 2013-01-30 17:59:52 Re: sql_drop Event Trigger
Previous Message Dimitri Fontaine 2013-01-30 17:10:24 Event Triggers Patch Series