From: | Andres Freund <andres(at)2ndquadrant(dot)com> |
---|---|
To: | Sergey Konoplev <gray(dot)ru(at)gmail(dot)com> |
Cc: | Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: pg_basebackup -x/X doesn't play well with archive_mode & wal_keep_segments |
Date: | 2015-02-13 00:18:11 |
Message-ID: | 20150213001811.GF9449@alap3.anarazel.de |
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Thread: | |
Lists: | pgsql-hackers |
On 2015-02-12 11:44:05 -0800, Sergey Konoplev wrote:
> On Thu, Feb 12, 2015 at 11:40 AM, Andres Freund <andres(at)2ndquadrant(dot)com> wrote:
> > This obviously should not be the case. I'll have a look in a couple of hours. Until then you can likely just work around the problem by creating the archive_status directory.
>
> Thank you. Just let me know if you need some extra info or debugging.
No need for debugging. It's plain and simply a (cherry-pick) conflict I
resolved wrongly during backpatching. 9.3, 9.4 and master do not have
that problem. That whole fix was quite painful because every single
release had significantly different code :(. pg_basebackup/ is pretty
messy.
I'm not sure why my testsuite didn't trigger that problem. Possibly
because a retry makes things work :(
Somewhat uckily it's 9.2 only (9.3, 9.4 and master look correct, earlier
releases don't have pg_receivexlog) and can quite easily be worked
around by creating the archive_status directory.
If you want to fix it locally, you just need to replace
ReceiveXlogStream(conn, startpos, timeline, NULL, basedir,
stop_streaming, standby_message_timeout, false, true);
by
ReceiveXlogStream(conn, startpos, timeline, NULL, basedir,
stop_streaming, standby_message_timeout, false, false);
Yes, that and pretty much all other functions in that directory have too
many parameters.
Greetings,
Andres Freund
--
Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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