On Wed, Feb 14, 2018 at 7:35 AM, Tatsuo Ishii <is...@sraoss.co.jp> wrote:
> Today one of Pgpool-II users reported an interesting fatal error
> message from PostgreSQL:
> FATAL: terminating connection due to conflict with recovery
> DETAIL: User was holding shared buffer pin for too long.
> HINT: In a moment you should be able to reconnect to the database and repeat 
> your command.
> "User was holding shared buffer pin for too long" sounds unusual to
> me. Is this a bug? PostgreSQL version is 10.1 according to the user.

Sounds normal to me.  Maybe the message could use some work, but this
is how hot standby works: if max_standby_archive_delay or
max_standby_streaming_delay expires, whatever is blocking recovery
gets blasted out of the way.

Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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