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Re: Sync Rep v17

From: Simon Riggs <simon(at)2ndQuadrant(dot)com>
To: Fujii Masao <masao(dot)fujii(at)gmail(dot)com>
Cc: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, pgsql-hackers(at)postgresql(dot)org, Daniel Farina <daniel(at)heroku(dot)com>
Subject: Re: Sync Rep v17
Date: 2011-03-01 00:19:15
Message-ID: 1298938755.12992.2208.camel@ebony (view raw or flat)
Thread:
Lists: pgsql-hackers
On Mon, 2011-02-28 at 18:40 +0000, Simon Riggs wrote:
> > SyncRepReleaseWaiters should be called when walsender exits. Otherwise,
> > if the standby crashes while a transaction is waiting for replication,
> > it waits infinitely.
> 
> Will think on this.

The behaviour seems correct to me:

If allow_standalone_primary = off then you wish to wait forever (at your
request...)

If allow_standalone_primary = on then we sit and wait until we hit
client timeout, which occurs even after last standby has gone.

-- 
 Simon Riggs           http://www.2ndQuadrant.com/books/
 PostgreSQL Development, 24x7 Support, Training and Services
 


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