| From: | Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com> |
|---|---|
| To: | Josh Berkus <josh(at)agliodbs(dot)com> |
| Cc: | Magnus Hagander <magnus(at)hagander(dot)net>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Greg Smith <greg(at)2ndquadrant(dot)com>, Selena Deckelmann <selenamarie(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Simon Riggs <simon(at)2ndQuadrant(dot)com> |
| Subject: | Re: Dividing progress/debug information in pg_standby, and stat before copy |
| Date: | 2010-01-26 18:48:52 |
| Message-ID: | 4B5F3914.8070503@enterprisedb.com |
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| Lists: | pgsql-hackers |
Josh Berkus wrote:
>> *That* makes pg_standby obsolete, not streaming replication per se.
>> Setting standby_mode=on, with a valid restore_command using e.g 'cp' and
>> no connection info for walreceiver is more or less the same as using
>> pg_standby.
>
> What about deletion of no-longer-needed WALfile copies?
Yeah, good point. You can still use a shell script as restore_command,
pass the %r option to it, and do the deletion there.
I didn't intend to replace pg_standby when I started this, it just kind
of happened. Maybe we should provide a sample script similar to
pg_standby, to be used instead of plain 'cp', that does the cleanup too.
--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com
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