| From: | Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com> |
|---|---|
| To: | Konstantin Knizhnik <k(dot)knizhnik(at)postgrespro(dot)ru>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Deadlock in ALTER SUBSCRIPTION REFRESH PUBLICATION |
| Date: | 2017-11-02 20:56:10 |
| Message-ID: | 71582aab-85ba-36ec-dec0-bd30e6de2430@2ndquadrant.com |
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| Lists: | pgsql-hackers |
On 10/24/17 13:13, Konstantin Knizhnik wrote:
> The reason of this deadlock seems to be clear: ALTER SUBSCRIPTION starts transaction at one node and tries to create slot at other node, which waiting for completion of all active transaction while building scnapshpot.
> Is there any way to avoid this deadlock?
I don't see a way to avoid it in general, unless we come up with a novel
way of creating replication slots.
--
Peter Eisentraut http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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