Re: Hint Bits and Write I/O - Mailing list pgsql-hackers

From Kevin Grittner
Subject Re: Hint Bits and Write I/O
Date
Msg-id 483EE689.EE98.0025.0@wicourts.gov
Whole thread Raw
In response to Re: Hint Bits and Write I/O  ("Florian G. Pflug" <fgp@phlo.org>)
Responses Re: Hint Bits and Write I/O  ("Florian G. Pflug" <fgp@phlo.org>)
List pgsql-hackers
>>> On Wed, May 28, 2008 at  6:26 PM, in message
<483DEA2D.3010704@phlo.org>,
"Florian G. Pflug" <fgp@phlo.org> wrote: 
> I think we should put some randomness into the decision,
> to spread the IO caused by hit-bit updates after a batch load.
Currently we have a policy of doing a VACUUM FREEZE ANALYZE on a table
after a bulk load, or on the entire database after loading a pg_dump
of a database.  We do this before putting the table or database into
production.  This avoids surprising clusters of writes at
unpredictable times.  Please don't defeat that.  (I'm not sure whether
your current suggestion would.)
-Kevin



pgsql-hackers by date:

Previous
From: Tom Lane
Date:
Subject: Re: intercepting WAL writes
Next
From: Tom Lane
Date:
Subject: Re: Core team statement on replication in PostgreSQL