| From: | Adrien NAYRAT <adrien(dot)nayrat(at)anayrat(dot)info> |
|---|---|
| To: | Jeremy Finzel <finzelj(at)gmail(dot)com>, Andres Freund <andres(at)anarazel(dot)de> |
| Cc: | <pgsql-hackers(at)lists(dot)postgresql(dot)org>, "Postgres-BDR and pglogical Mailing List" <bdr-list(at)2ndquadrant(dot)com> |
| Subject: | Re: No such file or directory in pg_replslot |
| Date: | 2018-12-11 11:46:56 |
| Message-ID: | a2578862-481a-0906-7af5-b6cbee7823f3@anayrat.info |
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| Thread: | |
| Lists: | pgsql-hackers |
On 12/8/18 8:21 PM, Jeremy Finzel wrote:
> There are 2.1 million files in pg_replslot which I don't think is
> normal? Any ideas as to where I should be looking or what could cause this?
Postgres spills changes on disk when you have a big transaction:
https://blog.anayrat.info/en/2018/03/10/logical-replication-internals/
You can monitor it with check_pgactivity's replication_slots service:
https://github.com/OPMDG/check_pgactivity/blob/master/check_pgactivity#L5664
(You have to use master version, this feature has not been released yet)
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