Re: Excessive vacuum times

From: Wes <wespvp(at)syntegra(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: <pgsql-general(at)postgresql(dot)org>
Subject: Re: Excessive vacuum times
Date: 2005-12-13 16:04:47
Message-ID: BFC44D3F.1B34F%wespvp@syntegra.com
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On 12/12/05 5:26 PM, "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:

>> The problem was determined to be due to the fact that indexes are vacuumed
>> in index order, not in disk storage order. I don't see anything about this
>> in the "What's new" for 8.1. Has anything been done to resolve this?
>
> No. Avoiding that would require a new approach to
> vacuum-vs-ordinary-indexscan interlocking, so it won't happen until
> someone has a Bright Idea (tm).

Any ideas on how I might I reconfigure to mitigate the issue? Separating
the most offending indexes to separate drives probably isn't an option.

Wes

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