Re: make async slave to wait for lsn to be replayed

From: i(dot)kartyshov(at)postgrespro(dot)ru
To: pgsql-hackers(at)postgresql(dot)org
Subject: Re: make async slave to wait for lsn to be replayed
Date: 2017-09-04 13:41:23
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I forget to include patch in last letter.

Craig Ringer wrote 2017-08-15 05:00:
> That ship sailed a long time ago unfortunately, they're all over
> pg_stat_replication and pg_replication_slots and so on. They're
> already routinely used for monitoring replication lag in bytes,
> waiting for a peer to catch up, etc.
> --
> Craig Ringer
> PostgreSQL Development, 24x7 Support, Training & Services

Function pg_replication_slots is only master, and waitlsn is async hot
standby replication function. It allows us to wait untill insert made on
master is be replayed on replica.

Ivan Kartyshov
Postgres Professional:
Russian Postgres Company

Attachment Content-Type Size
waitlsn_10dev_v6.patch text/x-diff 20.2 KB

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