From: | Scott Mead <scottm(at)openscg(dot)com> |
---|---|
To: | Selva manickaraja <mavles78(at)gmail(dot)com>, pgsql-admin(at)postgresql(dot)org |
Subject: | Re: Timeline Issue |
Date: | 2011-02-17 01:43:09 |
Message-ID: | AANLkTikXPqVXTO_Cqrq-2KoNMongop6hQhSudHUZQkhg@mail.gmail.com |
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Lists: | pgsql-admin |
(Added list back to keep me honest :-)
On Wed, Feb 16, 2011 at 8:41 PM, Selva manickaraja <mavles78(at)gmail(dot)com>wrote:
> So what would be the best option for there on? Should the standby be
> converted to primary and the initial primary now nominated as standby?
Once you convert to a primary, you're stuck on it. You'll have to create a
new standby from it, the old primary can't be used as a standby.
--Scott
>
>
> On Thu, Feb 17, 2011 at 9:36 AM, Scott Mead <scottm(at)openscg(dot)com> wrote:
>
>> On Wed, Feb 16, 2011 at 8:29 PM, Selva manickaraja <mavles78(at)gmail(dot)com>wrote:
>>
>>> Dear All,
>>>
>>> We have a primary running continous archiving to a secondary. We managed
>>> to test fail-over to the secondary by stopping the database in the primary.
>>> Then some transactions were tested in the secondary. It was acting well as a
>>> primary to accept both read and write.
>>>
>>> Now we want to revert this acting primary back to secondary and bring up
>>> the actual primary. We know that the secondary had gone out of synch in
>>> ahead of primary. So we do a PITR in this secondary before the time when the
>>> initial primary was brought down. Now the primary is up and the secondary is
>>> brought up as hot-standby. The secondary complaints that it cannot recover
>>> because its Timeline 2 does not match with the Timeline 1 of the primary.
>>>
>>
>> Once you open the standby for use, it cannot be put back into standby
>> mode. You will need to rebuild the standby server from the primary.
>>
>> --Scott
>>
>>
>>
>>>
>>> How can this be resolved?
>>>
>>> Thank you.
>>>
>>> Regards,
>>>
>>> Selvam
>>>
>>
>>
>
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