From: | "Chris Barnes" <cbarnes(at)recognia(dot)com> |
---|---|
To: | <pgsql-general(at)postgresql(dot)org> |
Subject: | Postgres online backup and restore |
Date: | 2009-06-25 13:40:30 |
Message-ID: | 7B0F8FD1EE6E4E39A8A41790B941FA13@Chris |
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Thread: | |
Lists: | pgsql-general |
Sorry if posting twice, wasn't part of general when sent and didn't see it
received by group.
I started an online backup of postgres, tar'd my data folder, copy to usb
drive in production
and restored it into my RC environment. Have I missed something important?
Online Backup
psql
checkpoint;
SELECT pg_switch_xlog();
SELECT pg_start_backup('postres_full_backup_June222009');
tar -czvf pgprd01_June22_2009_production.dmp.tar.gz data/
SELECT pg_stop_backup();
Restore
tar -xzvf pgprd01_June22_2009_production.dmp.tar.gz
When starting the database I receive many errors that look like the backup
was corrupted.
2009-06-23 08:29:15 EDT:@:7614ERROR: xlog flush request 10D/590D6578 is not
satisfied --- flushed only to 10D/510C4FB8
2009-06-23 08:29:15 EDT:@:7614CONTEXT: writing block 2 of relation
16403/16884/2696
2009-06-23 08:29:16 EDT:@:7614ERROR: xlog flush request 10D/590D6578 is not
satisfied --- flushed only to 10D/510C4FB8
2009-06-23 08:29:16 EDT:@:7614CONTEXT: writing block 2 of relation
16403/16884/2696
2009-06-23 08:29:16 EDT:@:7614WARNING: could not write block 2 of
16403/16884/2696
pgdb001=> select criteria_rank from client001.t1020screen where
criteria_rank like '%TR009%';
ERROR: missing chunk number 0 for toast value 738680
Version
[postgres(at)pgprd01 data]$ cat PG_VERSION
8.3
Chris Barnes
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