Re: Restore postgres to specific time

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От raghu ram
Тема Re: Restore postgres to specific time
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Msg-id CALnrrJSe1CC7WBRi81frozNFfUDYLQvcatjSz4R5_LC9kVogkA@mail.gmail.com
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Ответ на Re: Restore postgres to specific time  (wd <wd@wdicc.com>)
Ответы Re: Restore postgres to specific time  (wd <wd@wdicc.com>)
Список pgsql-general


On Fri, Nov 23, 2012 at 8:59 AM, wd <wd@wdicc.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

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