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* after failover?
@ 2011-10-14 14:02 Ray Stell <stellr@cns.vt.edu>
0 siblings, 1 reply; 4+ messages in thread
From: Ray Stell @ 2011-10-14 14:02 UTC (permalink / raw)
To: pgsql-admin@postgresql.org
The tutorial here excludes an important issue:
http://wiki.postgresql.org/wiki/Binary_Replication_Tutorial#Failing_Over_To_The_Standby
After the failover is complete, it seems like a restart is required to
make the new primary capable of supporting a new hot standby. Can the
config values be changed without an interuption of service? I'm using
a hotstandby config in 9.0.x. Anything different in this regard in 9.1?
Thanks.
^ permalink raw reply [nested|flat] 4+ messages in thread
* Re: after failover?
@ 2011-10-16 19:21 Simon Riggs <simon@2ndQuadrant.com>
parent: Ray Stell <stellr@cns.vt.edu>
0 siblings, 1 reply; 4+ messages in thread
From: Simon Riggs @ 2011-10-16 19:21 UTC (permalink / raw)
To: Ray Stell <stellr@cns.vt.edu>; +Cc: pgsql-admin <pgsql-admin@postgresql.org>
On Fri, Oct 14, 2011 at 3:02 PM, Ray Stell <stellr@cns.vt.edu> wrote:
> The tutorial here excludes an important issue:
> http://wiki.postgresql.org/wiki/Binary_Replication_Tutorial#Failing_Over_To_The_Standby
> After the failover is complete, it seems like a restart is required to
> make the new primary capable of supporting a new hot standby. Can the
> config values be changed without an interuption of service? I'm using
> a hotstandby config in 9.0.x. Anything different in this regard in 9.1?
> Thanks.
There's no reason not to have wal_level = hot_standby on the standby also.
--
Simon Riggs http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
^ permalink raw reply [nested|flat] 4+ messages in thread
* Re: after failover?
@ 2011-10-17 13:44 Ray Stell <stellr@cns.vt.edu>
parent: Simon Riggs <simon@2ndQuadrant.com>
0 siblings, 1 reply; 4+ messages in thread
From: Ray Stell @ 2011-10-17 13:44 UTC (permalink / raw)
To: Simon Riggs <simon@2ndQuadrant.com>; +Cc: pgsql-admin <pgsql-admin@postgresql.org>; pgsql-docs
On Sun, Oct 16, 2011 at 08:21:31PM +0100, Simon Riggs wrote:
> On Fri, Oct 14, 2011 at 3:02 PM, Ray Stell <stellr@cns.vt.edu> wrote:
>
> > The tutorial here excludes an important issue:
> > http://wiki.postgresql.org/wiki/Binary_Replication_Tutorial#Failing_Over_To_The_Standby
> > After the failover is complete, it seems like a restart is required to
> > make the new primary capable of supporting a new hot standby. ?Can the
> > config values be changed without an interuption of service? ?I'm using
> > a hotstandby config in 9.0.x. ?Anything different in this regard in 9.1?
> > Thanks.
>
> There's no reason not to have wal_level = hot_standby on the standby also.
That's helpful, thanks. Seems like a worthy addition to the doc and
tutorial.
^ permalink raw reply [nested|flat] 4+ messages in thread
* Re: after failover?
@ 2011-10-17 14:28 Simon Riggs <simon@2ndQuadrant.com>
parent: Ray Stell <stellr@cns.vt.edu>
0 siblings, 0 replies; 4+ messages in thread
From: Simon Riggs @ 2011-10-17 14:28 UTC (permalink / raw)
To: Ray Stell <stellr@cns.vt.edu>; +Cc: pgsql-admin <pgsql-admin@postgresql.org>; pgsql-docs
On Mon, Oct 17, 2011 at 2:44 PM, Ray Stell <stellr@cns.vt.edu> wrote:
> On Sun, Oct 16, 2011 at 08:21:31PM +0100, Simon Riggs wrote:
>> On Fri, Oct 14, 2011 at 3:02 PM, Ray Stell <stellr@cns.vt.edu> wrote:
>>
>> > The tutorial here excludes an important issue:
>> > http://wiki.postgresql.org/wiki/Binary_Replication_Tutorial#Failing_Over_To_The_Standby
>> > After the failover is complete, it seems like a restart is required to
>> > make the new primary capable of supporting a new hot standby. ?Can the
>> > config values be changed without an interuption of service? ?I'm using
>> > a hotstandby config in 9.0.x. ?Anything different in this regard in 9.1?
>> > Thanks.
>>
>> There's no reason not to have wal_level = hot_standby on the standby also.
>
> That's helpful, thanks. Seems like a worthy addition to the doc and
> tutorial.
Doc patches welcome. Wiki changes can be made directly. Thanks.
--
Simon Riggs http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
^ permalink raw reply [nested|flat] 4+ messages in thread
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2011-10-14 14:02 after failover? Ray Stell <stellr@cns.vt.edu>
2011-10-16 19:21 ` Simon Riggs <simon@2ndQuadrant.com>
2011-10-17 13:44 ` Ray Stell <stellr@cns.vt.edu>
2011-10-17 14:28 ` Simon Riggs <simon@2ndQuadrant.com>
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