Re: Restore postgres to specific time

On Fri, Nov 23, 2012 at 8:59 AM, wd <wd(at)wdicc(dot)com> wrote:

> Thanks for your reply, the logs are something like bellow，postgres will
> restore every wal log I put in the xlog directory，and then continues
> waiting for next wal log. The postgres version is 9.1.6.
>
> [ 2012-11-22 18:49:24.175 CST 25744 50ae0334.6490 1 0]LOG: database
> system was shut down in recovery at 2012-11-22 18:49:22 CST
> [ 2012-11-22 18:49:24.176 CST 25744 50ae0334.6490 2 0]LOG: entering
> standby mode
> [ 2012-11-22 18:49:24.210 CST 25744 50ae0334.6490 3 0]LOG: restored
> log file "000000010000002800000023" from archive
> [ 2012-11-22 18:49:24.213 CST 25744 50ae0334.6490 4 0]LOG: redo starts
> at 28/23001900
> [ 2012-11-22 18:49:24.619 CST 25744 50ae0334.6490 5 0]LOG: consistent
> recovery state reached at 28/23FFFFC8
> [ 2012-11-22 18:49:24.620 CST 25736 50ae0333.6488 2 0]LOG: database
> system is ready to accept read only connections
> cp: cannot stat `/export/t/xlog/000000010000002800000024': No such file or
> directory
> cp: cannot stat `/export/t/xlog/000000010000002800000024': No such file or
> directory
> cp: cannot stat `/export/t/xlog/000000010000002800000024': No such file or
> directory
> cp: cannot stat `/export/t/xlog/000000010000002800000024': No such file or
> directory
> cp: cannot stat `/export/t/xlog/000000010000002800000024': No such file or
> directory
> cp: cannot stat `/export/t/xlog/000000010000002800000024': No such file or
> directory
> cp: cannot stat `/export/t/xlog/000000010000002800000024': No such file or
> directory
> cp: cannot stat `/export/t/xlog/000000010000002800000024': No such file or
> directory
> cp: cannot stat `/export/t/xlog/000000010000002800000024': No such file or
> directory
> cp: cannot stat `/export/t/xlog/000000010000002800000024': No such file or
> directory
> cp: cannot stat `/export/t/xlog/000000010000002800000024': No such file or
> directory
> cp: cannot stat `/export/t/xlog/000000010000002800000024': No such file or
> directory
> cp: cannot stat `/export/t/xlog/000000010000002800000024': No such file or
> directory
> cp: cannot stat `/export/t/xlog/000000010000002800000024': No such file or
> directory
> cp: cannot stat `/export/t/xlog/000000010000002800000024': No such file or
> directory
> cp: cannot stat `/export/t/xlog/000000010000002800000024': No such file or
> directory
> cp: cannot stat `/export/t/xlog/000000010000002800000024': No such file or
> directory
> cp: cannot stat `/export/t/xlog/000000010000002800000024': No such file or
> directory
> [ 2012-11-22 18:50:49.828 CST 25744 50ae0334.6490 6 0]LOG: restored
> log file "000000010000002800000024" from archive
> [ 2012-11-22 18:50:50.291 CST 25744 50ae0334.6490 7 0]LOG: restored
> log file "000000010000002800000025" from archive
> [ 2012-11-22 18:50:50.759 CST 25744 50ae0334.6490 8 0]LOG: restored
> log file "000000010000002800000026" from archive
> [ 2012-11-22 18:50:51.220 CST 25744 50ae0334.6490 9 0]LOG: restored
> log file "000000010000002800000027" from archive
> [ 2012-11-22 18:50:51.686 CST 25744 50ae0334.6490 10 0]LOG: restored
> log file "000000010000002800000028" from archive
> [ 2012-11-22 18:50:52.145 CST 25744 50ae0334.6490 11 0]LOG: restored
> log file "000000010000002800000029" from archive
> [ 2012-11-22 18:50:52.613 CST 25744 50ae0334.6490 12 0]LOG: restored
> log file "00000001000000280000002A" from archive
> [ 2012-11-22 18:50:53.073 CST 25744 50ae0334.6490 13 0]LOG: restored
> log file "00000001000000280000002B" from archive
> [ 2012-11-22 18:50:53.538 CST 25744 50ae0334.6490 14 0]LOG: restored
> log file "00000001000000280000002C" from archive
> [ 2012-11-22 18:50:53.999 CST 25744 50ae0334.6490 15 0]LOG: restored
> log file "00000001000000280000002D" from archive
> [ 2012-11-22 18:50:54.459 CST 25744 50ae0334.6490 16 0]LOG: restored
> log file "00000001000000280000002E" from archive
> [ 2012-11-22 18:50:54.920 CST 25744 50ae0334.6490 17 0]LOG: restored
> log file "00000001000000280000002F" from archive
> cp: cannot stat `/export/t/xlog/000000010000002800000030': No such file or
> directory
> cp: cannot stat `/export/t/xlog/000000010000002800000030': No such file or
> directory
>
>
>
> As per logs,it is working as a host-standby. For doing the point in time
recovery,recovery.conf file requires only two settings:

restore_command='cp /t/xlog/%f %p'
recovery_target_time='2012-11-22 5:01:09 CST'

--Raghu Ram