Re: WAL archiving - Mailing list pgsql-admin
From | Shilpa Sudhakar |
---|---|
Subject | Re: WAL archiving |
Date | |
Msg-id | 47C1FCB2.3070401@internode.com.au Whole thread Raw |
In response to | WAL archiving (Shilpa Sudhakar <ssudhakar@internode.com.au>) |
Responses |
Re: WAL archiving
(Vishal Arora <aroravishal22@hotmail.com>)
|
List | pgsql-admin |
Shilpa Sudhakar wrote: > Hi Vishal, > > Below is the setup in the postgresql.conf file > > fsync = true # turns forced synchronization on or off > wal_sync_method = fsync # the default varies across platforms: > #wal_buffers = 8 # min 4, 8KB each > #commit_delay = 0 # range 0-100000, in microseconds > #commit_siblings = 5 # range 1-1000 > > # - Checkpoints - > > checkpoint_segments = 3 # in logfile segments, min 1, 16MB each > checkpoint_timeout = 300 # range 30-3600, in seconds > checkpoint_warning = 30 # 0 is off, in seconds > > # - Archiving - > > archive_command = 'cp -i %p /usr/local/var/pgsql/data/wal_log/%f' > # command to use to archive a logfile segment > > Since this is the test system i've put the wal_log folder in the data > folder itself. But, later on i'll be moving this to a different disk. > > We have thousands and thousands of records that get inserted and > updated so the wal logs would be increasing in a large rate. I was > thinking if i want to delete the wal logs after a period of time, do i > take a base backup again and then delete those old files? > > Thanks and Regards, > Shilpa > > > Vishal Arora wrote: >> >> Hi Shilpa, >> >> You need not take base backup again and again. You have WAL >> Archiveing in place, that is enough to restore the database. BTW, >> what archiving command are you using for WAL Archiving in you >> postgresql.conf. >> >> - Vishal >> >> ------------------------------------------------------------------------ >> >> > Date: Fri, 22 Feb 2008 09:53:25 +1030 >> > From: ssudhakar@internode.com.au >> > To: pgsql-admin@postgresql.org >> > Subject: [ADMIN] WAL archiving >> > >> > Hi All, >> > >> > I am new to postgres and have been slowly learning the concepts. >> > >> > Regarding WAL archiving, we first take a base backup and then save all >> > the wal logs for PITR. >> > >> > Both the base backup and wal logs are stored in another disk. >> > >> > Since the wal logs keep increasing, do we take the base backup >> every now >> > and then so that we can delete the old log files? >> > How often do we take a base filesystem backup keeping in mind that our >> > systems are 24 x 7. >> > >> > Any suggestions are appreciated. >> > >> > Thanks and Regards, >> > Shilpa >> > >> > >> > ---------------------------(end of >> broadcast)--------------------------- >> > TIP 9: In versions below 8.0, the planner will ignore your desire to >> > choose an index scan if your joining column's datatypes do not >> > match >> >> >> ------------------------------------------------------------------------ >> It's about getting married. Click here! Try it! >> <http://ss1.richmedia.in/recurl.asp?pid=201> > >
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