Re: Demoting master to slave without an rsync...is it safe?

Chris Redekop wrote:
>
>
>     I have two questions:
>     (1) Did you set recovery_target_timeline='latest' in both master
>     and slave?
>
>
> Yes....but it's in recovery.conf so it only really applies to
> whichever server is currently the slave...
>
>
>     (2) Did you make any changes after promote the slave to be master?
>
>
> Yes, some....however I'm not sure I've done enough changes to have the
> slave rotate+archive an xlog before bringing the old master back up as
> a slave....I would assume that wouldn't make a difference but it's
> something to test I guess....
Did you set trigger_file in recovery?  That is the required step to
switch slave to master.   I set my log rotate+archive to 15 minutes.
When I touch fail over file, it mostly like force it to rotate+archive.

--
Best regards,


Alex Lai
OMI SIPS DBA ADNET Systems , Inc.
7515 Mission Drive,
Suite A100 Lanham, MD 20706
301-352-4657 (phone)
301-352-0437 (fax)
alai@sesda2.com