On 27/07/16 18:54, Chris Travers wrote:
> Another one I think they obliquely referred to (in the subtle problems
> section) was the fact that if you have longer-running queries on the
> replica with a lot of updates, you can get funny auto-vacuum-induced
> errors (writes from autovacuum on the master can interrupt queries on
> the slave).  BTW if there is interest in what could be done for that,
> something which allows autovacuum to decide how long to wait before
> cleaning up dead tuples would be a great enhancement.

You mean something like hot_standby_feedback?

https://www.postgresql.org/docs/current/static/runtime-config-replication.html#GUC-HOT-STANDBY-FEEDBACK
-- 
Vik Fearing                                          +33 6 46 75 15 36
http://2ndQuadrant.fr     PostgreSQL : Expertise, Formation et Support


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