Re: Postgresql 9.3.4 Streaming Replication Standby invalid Page block

show data_checksums;=0A=
 data_checksums =0A=
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 off=0A=
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tabsdb=3D# select version();=0A=
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                   version=0A=
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PostgreSQL 9.3.4 on x86_64-unknown-linux-gnu, compiled by gcc (GCC) 4.4.7 2=
0120313 (Red Hat 4.4.7-4). 64-bit=0A=
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On both Master/Standby=0A=
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The standby replayed all of the outstanding WAL logs overnight and we have =
caught up with the primary database now, and streaming replication is runni=
ng fine now.=0A=
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The relation "pg_tblspc/16435/PG_9.3_201306121/16444/125127698" points to a=
 Partition tablespace with data from the year 2007. I verified that the row=
 counts match up between the master/slave on the tables that reside on that=
 tablespace.=0A=
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Is there anything else I can do to verify the consistency on the standby?=
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thanks=0A=
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________________________________________=0A=
From: Andres Freund [andres@2ndquadrant.com]=0A=
Sent: Wednesday, July 02, 2014 7:09 AM=0A=
To: Heikki Linnakangas=0A=
Cc: Burgess, Freddie; "PostgreSQL Bugs =FD[pgsql-bugs@postgresql.org]=FD"=
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Subject: Re: [BUGS] Postgresql 9.3.4 Streaming Replication Standby invalid =
Page block=0A=
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On 2014-07-02 14:02:27 +0300, Heikki Linnakangas wrote:=0A=
> On 07/02/2014 02:03 AM, Burgess, Freddie wrote:=0A=
> >  PostgreSQL version: 9.3.4=0A=
> >  Operating system:   rhel 6.4 linux=0A=
> >  Action: stream replication Master/Slave=0A=
> >  Description:=0A=
> >=0A=
> >Last entries in the PostgreSQL log file before the standby crashed, the =
primary seems unaffected=0A=
> >=0A=
> >LOG: restored log file "0000000100001127000000cc" from archive=0A=
> >FATAL: invalid page in block 464698 of relation pg_tblspc/16435/PG_9.3_2=
01306121/16444/125127698=0A=
> >CONTEXT: xlog redo vacuum: rel 16435/16444/125127698; blk 512019, lastBl=
ockVacuumed 0=0A=
> >LOG: startup process (PID 27797) exited with exit code 1=0A=
> >LOG: terminating any other active server processes=0A=
> >=0A=
> >We did re-started the database and the process of restoring the log file=
 has continued beyond this point, but is are standby server corrupted?=0A=
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Do you run with data checksums enabled?=0A=
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> Sounds exactly like this bug:=0A=
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> http://www.postgresql.org/message-id/flat/CAL_0b1s4QCkFy_55kk_8XWcJPs7wsg=
VWf8vn4=3DjXe6V4R7Hxmg@mail.gmail.com=0A=
>=0A=
> but that was fixed in 9.3.3 already. Are you sure you're running 9.3.4 in=
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> the standby too?=0A=
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Hm - that bug was about uninitialized pages, not invalid ones. I don't=0A=
immediately see why it'd be legal to have a invalid page (as in=0A=
!PageIsVerified()) somewhere? At least not after reaching consistency.=0A=
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Greetings,=0A=
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Andres Freund=0A=
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--=0A=
 Andres Freund                     http://www.2ndQuadrant.com/=0A=
 PostgreSQL Development, 24x7 Support, Training & Services=0A=