Re: wal logs in pg_xlog

Michael Fuhr wrote:

>On Mon, Jun 27, 2005 at 11:04:50AM +0500, Nasir Iqbal Danish wrote:
>
>
>>I am using postgres 8.0.3, and wanted to use Point In Time Recovery enable.
>>could any one tell me about how to indentify the current WAL file, also
>>let me know if there is any fix patteren for WAL log file generations.
>>documentaion says it will generate ever increasing number starting from
>>some thing like "0000000100000000000000000". but I have observed
>>different behaviour.
>>
>>
>
>What behavior have you observed?
>
>
>
the files in pg_xlog like 000010000000000005, 000010000000000006,
000010000000000007, 000010000000000008, (in short term call these 5,6,7,8).
with file 8 being most recent and 5 being 2 months back, with respect to
time stamp. after I did some work and then observed log files, now 5 and
6 were showing me latest time stamps. I was confused which is the latest
one.
I also want to know when new WAL segment files is created, is it 16MB or
this will start from 0 bytes and size inceases as soon as db server will
manupulate.

Please provide me if u can some script to identify which one is latest
file so that I can copy this to some other place.
One more question. Is there a way to build or configure the database
server to replicate pg_xlogs ?
-Nasir