Re: pg_xlog symlink

On Feb 15, 2008, at 10:17 , Tore Halset wrote:

> Hello.
>
> I have just moved our database from one server to another using warm
> standby. It worked very well.
>
> The setup: PostgreSQL 8.2.5 on Ubuntu. One partition for OS, one for
> backup including wal archiving, one for base and one for pg_xlog. It
> is set up to archive wals to /backup/masterhostname/wal
>
> There is something strange in the pg_xlog directory of our new master.
>
> %:/usr/local/postgresql-8.2.5/data/pg_xlog# ls -l
> total 49220
> -rw------- 1 postgres postgres      257 2008-02-15 00:35
> 000000010000003A00000046.00004D60.backup
> -rw------- 1 postgres postgres 16777216 2008-02-15 10:04
> 000000010000003A0000006C
> -rw------- 1 postgres postgres 16777216 2008-02-15 10:04
> 000000010000003A0000006D
> lrwxrwxrwx 1 postgres postgres       45 2008-02-14 21:56
> 000000010000003A0000006E -> /backup/oldmasterhostname/wal/
> 000000010000003A0000003B
> -rw------- 1 postgres postgres 16777216 2008-02-15 10:08
> 000000010000003A0000006F
> drwx------ 2 postgres root         4096 2008-02-15 10:08
> archive_status
>
> As you see, one of the wal files is a symlink to a file on the
> backup partition. I would like all the wal files to exist on the
> pg_xlog for performance and clarity. Can I safely fix this situation
> without restarting the database? Why did not PostgreSQL fix this
> automatically?

The problem seem to be that I used pg_standby with the "-l" option.

Regards,
  - Tore.