Ragnar Hafstaš wrote: > On Sat, 2005-04-16 at 23:06 -0400, Bruce Momjian wrote: > [about backup procedure with PITR documentation > > > I see in the docs: > > > > To make use of this backup, you will need to keep around all the WAL > > segment files generated at or after the starting time of the backup. To > > aid you in doing this, the pg_stop_backup function creates a backup > > history file that is immediately stored into the WAL archive area. This > > file is named after the first WAL segment file that you need to have to > > make use of the backup. For example, if the starting WAL file is > > 0000000100001234000055CD the backup history file will be named something > > like 0000000100001234000055CD.007C9330.backup. (The second part of this > > file name stands for an exact position within the WAL file, and can > > ordinarily be ignored.) Once you have safely archived the backup dump > > file, you can delete all archived WAL segments with names numerically > > preceding this one. > > > > I am not clear on what the "backup dump file" is? I assume it means > > 0000000100001234000055CD. It is called "WAL segment file" above. I > > will rename that phrase to match the above terminology. Patch attached > > and applied. > > Doesn't it refer to the backup file itself (the tar file of the data > directory) ?
No. That is what I thought it meant on first reading, but looking closer it is referring to the numbered file, and the tar file has no specific number. > You do not want to start deleting WAL segments until that one is safely > archived. Right, but the point of the paragraph is that you need the WAL file that goes with the backup history file number. -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073 ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster
