| From: | Kuntal Ghosh <kuntalghosh(dot)2007(at)gmail(dot)com> |
|---|---|
| To: | Michael Paquier <michael(dot)paquier(at)gmail(dot)com> |
| Cc: | "Tsunakawa, Takayuki" <tsunakawa(dot)takay(at)jp(dot)fujitsu(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: [bug fix] Stats collector is not restarted on the standby |
| Date: | 2016-10-26 12:41:34 |
| Message-ID: | CAGz5QCKrf1=4A80+iugnwpOEOTnBWRQtC3R_9hKLeJpnhEHcgg@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Wed, Oct 26, 2016 at 4:47 PM, Michael Paquier
<michael(dot)paquier(at)gmail(dot)com> wrote:
>
> If you test on a master node that would be the same: there is a delay
> until the stats process restart. I have not looked at the code closely
> enough in this area (reaper()?) to determine if there are ways to
> improve the responsiveness of this process restart that is a
> non-auxiliary proces btw, still improving this behavior is something I
> feel would be invasive, and something that would be dedicated to HEAD.
> The patch proposed here by Tsunakawa-san makes at least sure that a
> node in PM_HOT_STANDBY state restarts it.
Yes, you are right. Master also has some delay for restarting the
process. Otherwise, the patch solves the problem.
--
Thanks & Regards,
Kuntal Ghosh
EnterpriseDB: http://www.enterprisedb.com
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