Re: [HACKERS] Tracking latest timeline in standby mode

2011-12-07 Thread senthilnathan
We are using 9.1., We have a set up like a master and 2 standby servers. M -- S1,S2 . Both standby S1 and S2 share the same archive. Master will have an Virtual IP. Both stand by servers will be replicated using this virtual ip. Assume the master fails,using our heart beat mechanism Virtual IP

Re: [HACKERS] Tracking latest timeline in standby mode

2011-10-03 Thread senthilnathan
Whether this feature is available in version 9.1.0. ?? -- View this message in context: http://postgresql.1045698.n5.nabble.com/Tracking-latest-timeline-in-standby-mode-tp3238829p4863900.html Sent from the PostgreSQL - hackers mailing list archive at Nabble.com. -- Sent via pgsql-hackers

Re: [HACKERS] Tracking latest timeline in standby mode

2011-10-03 Thread Fujii Masao
On Mon, Oct 3, 2011 at 3:18 PM, senthilnathan senthilnatha...@gmail.com wrote: Whether this feature is available in version 9.1.0. ?? Yes, it's available in 9.1.x. Regards, -- Fujii Masao NIPPON TELEGRAPH AND TELEPHONE CORPORATION NTT Open Source Software Center -- Sent via pgsql-hackers

Re: [HACKERS] Tracking latest timeline in standby mode

2011-03-07 Thread Heikki Linnakangas
On 08.02.2011 06:27, Robert Haas wrote: On Mon, Jan 24, 2011 at 2:00 AM, Fujii Masaomasao.fu...@gmail.com wrote: On Wed, Jan 5, 2011 at 5:08 AM, Heikki Linnakangas heikki.linnakan...@enterprisedb.com wrote: I finally got around to look at this. I wrote a patch to validate that the TLI on

Re: [HACKERS] Tracking latest timeline in standby mode

2011-03-07 Thread Magnus Hagander
On Mon, Mar 7, 2011 at 11:52, Heikki Linnakangas heikki.linnakan...@enterprisedb.com wrote: On 08.02.2011 06:27, Robert Haas wrote: On Mon, Jan 24, 2011 at 2:00 AM, Fujii Masaomasao.fu...@gmail.com  wrote: On Wed, Jan 5, 2011 at 5:08 AM, Heikki Linnakangas

Re: [HACKERS] Tracking latest timeline in standby mode

2011-03-07 Thread Fujii Masao
On Mon, Mar 7, 2011 at 9:06 PM, Magnus Hagander mag...@hagander.net wrote: I dropped the ball on this one, but now that we have pg_basebackup and pg_ctl promote which make it easy to set up a standby and failover, I think we should still do this in 9.1. Otherwise you need a restart to have a

Re: [HACKERS] Tracking latest timeline in standby mode

2011-03-07 Thread Heikki Linnakangas
On 07.03.2011 14:35, Fujii Masao wrote: Comments: + if (!list_member_int(expectedTLIs, +(int) recoveryTargetTLI)) + ereport(LOG, + (errmsg(new timeline %u is not a

Re: [HACKERS] Tracking latest timeline in standby mode

2011-02-07 Thread Robert Haas
On Mon, Jan 24, 2011 at 2:00 AM, Fujii Masao masao.fu...@gmail.com wrote: On Wed, Jan 5, 2011 at 5:08 AM, Heikki Linnakangas heikki.linnakan...@enterprisedb.com wrote: I finally got around to look at this. I wrote a patch to validate that the TLI on xlog page header matches ThisTimeLineID

Re: [HACKERS] Tracking latest timeline in standby mode

2011-01-23 Thread Fujii Masao
On Wed, Jan 5, 2011 at 5:08 AM, Heikki Linnakangas heikki.linnakan...@enterprisedb.com wrote: I finally got around to look at this. I wrote a patch to validate that the TLI on xlog page header matches ThisTimeLineID during recovery, and noticed quickly in testing that it doesn't catch all the

Re: [HACKERS] Tracking latest timeline in standby mode

2011-01-04 Thread Heikki Linnakangas
On 02.11.2010 07:15, Fujii Masao wrote: On Mon, Nov 1, 2010 at 8:32 PM, Heikki Linnakangas heikki.linnakan...@enterprisedb.com wrote: Yeah, that's one approach. Another is to validate the TLI in the xlog page header, it should always match the current timeline we're on. That would feel more

Re: [HACKERS] Tracking latest timeline in standby mode

2010-11-02 Thread Heikki Linnakangas
On 02.11.2010 07:15, Fujii Masao wrote: On Mon, Nov 1, 2010 at 8:32 PM, Heikki Linnakangas heikki.linnakan...@enterprisedb.com wrote: Yeah, that's one approach. Another is to validate the TLI in the xlog page header, it should always match the current timeline we're on. That would feel more

Re: [HACKERS] Tracking latest timeline in standby mode

2010-11-01 Thread Fujii Masao
On Wed, Oct 27, 2010 at 11:42 PM, Heikki Linnakangas heikki.linnakan...@enterprisedb.com wrote: At the moment, when you specify recovery_target_timeline='latest', we scan for the latest timeline at the beginning of recovery, and pick that as the target. If new timelines appear during recovery,

Re: [HACKERS] Tracking latest timeline in standby mode

2010-11-01 Thread Heikki Linnakangas
On 01.11.2010 12:32, Fujii Masao wrote: A related issue is that we should have a check for the issue I also mentioned in the comments: /* * If the current timeline is not part of the history of the * new timeline, we cannot proceed to it. * * XXX

Re: [HACKERS] Tracking latest timeline in standby mode

2010-11-01 Thread Fujii Masao
On Mon, Nov 1, 2010 at 8:32 PM, Heikki Linnakangas heikki.linnakan...@enterprisedb.com wrote: Yeah, that's one approach. Another is to validate the TLI in the xlog page header, it should always match the current timeline we're on. That would feel more robust to me. Yeah, that seems better.

[HACKERS] Tracking latest timeline in standby mode

2010-10-27 Thread Heikki Linnakangas
At the moment, when you specify recovery_target_timeline='latest', we scan for the latest timeline at the beginning of recovery, and pick that as the target. If new timelines appear during recovery, we stick to the target chosen in the beginning, the new timelines are ignored. That's