| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | Josh Berkus <josh(at)agliodbs(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Remove vacuum_defer_cleanup_age |
| Date: | 2016-10-20 01:09:01 |
| Message-ID: | 20161020010901.GA20259@momjian.us |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On Wed, Oct 19, 2016 at 08:17:46PM -0400, Robert Haas wrote:
> On Wed, Oct 19, 2016 at 12:59 PM, Bruce Momjian <bruce(at)momjian(dot)us> wrote:
> > Uh, vacuum_defer_cleanup_age sets an upper limit on how long, in terms
> > of xids, that a standby query can run before cancel, like
> > old_snapshot_threshold, no?
>
> No, not really. It affects the behavior of the master, not the standby.
But it controls when/if cancels happen on the standby.
--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ As you are, so once was I. As I am, so you will be. +
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