On 3/23/15 12:42 AM, Venkata Balaji N wrote:
> Hi,
> 
> Assuming that this might require a patch, i am posting this in
> pgsql-hackers. Apologies, if this is not the appropriate mailing list to
> start this discussion.
> 
> I performed a PITR and saw the below message in the log file is a bit
> confusing.
> 
> 2015-03-23 13:49:09.816 GMT-10 DB= PID=4707 LOG: *database system was
> interrupted; last known up at 2015-03-23 10:30:26 GMT-10*
> 2015-03-23 13:49:09.817 GMT-10 DB= PID=4707 LOG: *starting point-in-time
> recovery to 2015-03-23 10:00:26+10*
> 2015-03-23 13:49:09.827 GMT-10 DB= PID=4707 LOG:  restored log file
> "000000010000000B00000020" from archive
> 2015-03-23 13:49:09.888 GMT-10 DB= PID=4707 LOG:  redo starts at B/20000090
> 2015-03-23 13:49:09.937 GMT-10 DB= PID=4707 LOG:  consistent recovery
> state reached at B/200000B8
> 2015-03-23 13:49:09.947 GMT-10 DB= PID=4707 LOG:  restored log file
> "000000010000000B00000021" from archive
> 2015-03-23 13:49:09.950 GMT-10 DB= PID=4707 LOG:  *recovery stopping
> before commit of transaction 16267, time 2015-03-23 13:22:37.53007+10*
> 
> 
> By mistake i gave "recovery_target_time" as 10:00 GMT which is 25/30
> minutes behind the backup start/end time registered in the backup_label.
> 
> The parameter recovery_target_time is ignored and recovery proceeds
> further applying all the available WAL Archive files finally ends up
> bringing up the database.
> 
> I think it would make sense if the recovery does not proceed any further
> and error out with a message like "recovery_target_time is behind the
> backup time.. please consider using the backup taken prior to the
> recovery_target_time"

I just tried it with 9.3.5 and I do get an error:

LOG:  starting point-in-time recovery to 2015-03-23 17:26:02.721307-04
LOG:  restored log file "000000010000000000000003" from archive
LOG:  redo starts at 0/30000C8
LOG:  recovery stopping before commit of transaction 1001, time
2015-03-23 18:26:01.012593-04
LOG:  redo done at 0/3000228
FATAL:  requested recovery stop point is before consistent recovery point

Here's my recovery.conf file:

restore_command = '/usr/bin/pg_backrest.pl --stanza=db archive-get %f "%p"'
recovery_target_time = '2015-03-23 17:26:02.721307 EDT'

> recovery.conf file is as follows :
> 
> restore_command='cp /data/pgdata9400backup/pgwalarch9400backup/%f %p '
> recovery_target_time='2015-03-23 10:00:26 GMT-10'
> recovery_target_inclusive='true'

You have '2015-03-23 10:00:26 GMT-10' in recovery.conf but the log says
'starting point-in-time recovery to 2015-03-23 10:00:26+10'.  Note the -
vs +.

Could you check your log and recovery.conf and make sure the timezone
offsets are actually different?

-- 
- David Steele
da...@pgmasters.net

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