Thread: [GENERAL] Veritas cluster management

[GENERAL] Veritas cluster management

From
Ron Johnson
Date:
Hi,

For any of you with those failover clusters, do you know if "pg_ctl reload"
works (for compatible config file changes), or must we bounce the database
using "hares -offline" then "hares -online"?

Thanks

--
World Peace Through Nuclear Pacification



Re: [GENERAL] Veritas cluster management

From
Scott Mead
Date:


On Wed, Aug 30, 2017 at 9:43 AM, Ron Johnson <ron.l.johnson@cox.net> wrote:
Hi,

For any of you with those failover clusters, do you know if "pg_ctl reload" works (for compatible config file changes), or must we bounce the database using "hares -offline" then "hares -online"?

pg_ctl reload does work in this case. HOWEVER, if you do something that could cause trouble to the cluster (i.e.  a pg_hba.conf change that breaks connectivity), this could cause veritas to try and failover.  It's recommended that you test your changes to avoid these scenarios.

  Technically however, pg_ctl reload works just fine, just don't break anything :)

--Scott

 

Thanks

--
World Peace Through Nuclear Pacification



--
Sent via pgsql-general mailing list (pgsql-general@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-general



--
--
Scott Mead
Sr. Architect
OpenSCG

Re: [GENERAL] Veritas cluster management

From
Ron Johnson
Date:
On 08/30/2017 08:48 AM, Scott Mead wrote:


On Wed, Aug 30, 2017 at 9:43 AM, Ron Johnson <ron.l.johnson@cox.net> wrote:
Hi,

For any of you with those failover clusters, do you know if "pg_ctl reload" works (for compatible config file changes), or must we bounce the database using "hares -offline" then "hares -online"?

pg_ctl reload does work in this case. HOWEVER, if you do something that could cause trouble to the cluster (i.e.  a pg_hba.conf change that breaks connectivity), this could cause veritas to try and failover.  It's recommended that you test your changes to avoid these scenarios.

  Technically however, pg_ctl reload works just fine, just don't break anything :)

That's great news.  Many thanks.

-- 
World Peace Through Nuclear Pacification