Date: Tue, 10 Jun 2014 09:48:42 -0400
From: Alvaro Herrera <alvherre@2ndquadrant.com>
To: Serge Negodyuck <petr@petrovich.kiev.ua>
Cc: pgsql-bugs@postgresql.org
Subject: Re: BUG #8673: Could not open file
 "pg_multixact/members/xxxx" on slave during hot_standby
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Serge Negodyuck wrote:
> 2014-06-09 22:49 GMT+03:00 Alvaro Herrera <alvherre@2ndquadrant.com>:

> > > An ugly hack "cp pg_multixact/members/14077 pg_multixact/members/14078"
> > > helped me to start master server in replica.
> > >
> > > Then, did pg_basebackup to slave database. It does not help
> > > 2014-06-02 09:58:49 EEST 172.18.10.17 db2 DETAIL: Could not open file
> > > "pg_multixact/members/1112D": No such file or directory.
> > > 2014-06-02 09:58:49 EEST 172.18.10.18 db2 DETAIL: Could not open file
> > > "pg_multixact/members/11130": No such file or directory.
> > > 2014-06-02 09:58:51 EEST 172.18.10.34 db2 DETAIL: Could not open file
> > > "pg_multixact/members/11145": No such file or directory.
> > > 2014-06-02 09:58:51 EEST 172.18.10.38 db2 DETAIL: Could not open file
> > > "pg_multixact/members/13F76": No such file or directory
> >
> > This is strange also; if the files are present in master, how come they
> > weren't copied to the replica?  I think we need more info about this
> > problem.
> I've thoroughly looked through the logs once again and I have not
> found anything interesting.
> I just know there were very few pg_multixact/members files starting
> from 0000. It was on both slave servers. So I've observed this issue
> two times.

But it was OK on master, right?  It had the full set of files and no
file got remove improperly?  (minus 14078, which wasn't created on time,
of course)

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


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