Re: Guideline To Resolve LWLock:SubtransControlLock

From: Fred Habash <fmhabash(at)gmail(dot)com>
To: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
Cc: pgsql-performance(at)lists(dot)postgresql(dot)org
Subject: Re: Guideline To Resolve LWLock:SubtransControlLock
Date: 2018-08-20 20:52:47
Message-ID: 82F3FC39-72DA-4C25-804A-212DE0E5ECB3@gmail.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-performance

Thanks.
How do we go about calculating appropriate values for these two parameters ...

> 'NUM_SUBTRANS_BUFFERS'?
TOTAL_MAX_CACHED_SUBXIDS

And do both require a recompile?

————-
Thank you.

On Aug 17, 2018, at 2:26 PM, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> wrote:

>> And as for the recompile, are you thinking 'NUM_SUBTRANS_BUFFERS'?
>
> Yes, that's one option, but there's also TOTAL_MAX_CACHED_SUBXIDS.

In response to

Responses

Browse pgsql-performance by date

  From Date Subject
Next Message Alvaro Herrera 2018-08-20 21:00:27 Re: Guideline To Resolve LWLock:SubtransControlLock
Previous Message Alvaro Herrera 2018-08-17 18:26:45 Re: Guideline To Resolve LWLock:SubtransControlLock