Postgres Pro
Downloads
Home   >   mailing lists

Re: Heavy write activity on first vacuum of fresh TOAST data - Mailing list pgsql-performance

From Kevin Grittner
Subject Re: Heavy write activity on first vacuum of fresh TOAST data
Date
Msg-id 47614D86.EE98.0025.0@wicourts.gov
Whole thread Raw
In response to Re: Heavy write activity on first vacuum of fresh TOAST data  (Simon Riggs <simon@2ndquadrant.com>)
Responses Re: Heavy write activity on first vacuum of fresh TOAST data  (Simon Riggs <simon@2ndquadrant.com>)
List pgsql-performance
Tree view 
>>> On Thu, Dec 13, 2007 at 12:12 PM, in message
<1197569564.4255.1855.camel@ebony.site>, Simon Riggs <simon@2ndquadrant.com>
wrote:
> On Thu, 2007-12-13 at 11:46 -0600, Kevin Grittner wrote:
>> If the hint bit changes are written to the WAL ...
>
> They're not.

So one would expect a write-intensive initial vacuum after a
PITR-style recovery?

What impact would lack of the hint bits have until a vacuum?

-Kevin

pgsql-performance by date:

Previous
From: "Campbell, Lance"
Date:
Subject: Re: Putting files into fields in a table
Next
From: Simon Riggs
Date:
Subject: Re: Heavy write activity on first vacuum of fresh TOAST data