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From: Vladimir Davydov <vdavydov.dev@gmail.com>
To: Konstantin Osipov <kostja@tarantool.org>
Cc: tarantool-patches@freelists.org
Subject: Re: [RFC PATCH 06/12] box: refactor hot standby recovery
Date: Fri, 8 Jun 2018 16:30:01 +0300	[thread overview]
Message-ID: <20180608133001.crnhnkq2jhlstjm3@esperanza> (raw)
In-Reply-To: <20180608131524.GD10854@chai>

On Fri, Jun 08, 2018 at 04:15:24PM +0300, Konstantin Osipov wrote:
> * Vladimir Davydov <vdavydov.dev@gmail.com> [18/06/08 11:28]:
> > No, it doesn't. See, even though it removes recover_remaining_wals()
> > from recovery_finalize(), it makes hot_standby_f() call it before
> > returning, so that we will rescan the xlog dir just before leaving
> > hot standby mode:
> 
> This is quite tricky. And I don't see why you need to do it this
> way - why not add recover_remaining_wals to box_init instead,
> where it will be more visible.

Hmm, I guess you're right. I'll move the invocation of
recover_remaining_wals from hot_standby_f to be called right after
recovery_stop_local.

Just so you understand why I'm doing this: if this patch set is applied,
we will init replicaset.vclock before reading snapshot for normal
recovery while in case of hot standby we will also have to promote it
after recovery_stop_local. I want to separate those two paths so that we
don't set replicaset.vclock twice in case of normal recovery.

> 
> > > @@ -490,6 +486,7 @@ hot_standby_f(va_list ap)
> > >  
> > >  		subscription.events = 0;
> > >  	}
> > > +	recover_remaining_wals(r, stream, NULL, true);
> > >  	return 0;

  reply	other threads:[~2018-06-08 13:30 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-06 17:45 [RFC PATCH 00/12] Replica rejoin Vladimir Davydov
2018-06-06 17:45 ` [RFC PATCH 01/12] recovery: drop unused recovery_exit Vladimir Davydov
2018-06-08  4:13   ` Konstantin Osipov
2018-06-06 17:45 ` [RFC PATCH 02/12] recovery: constify vclock argument Vladimir Davydov
2018-06-08  4:14   ` Konstantin Osipov
2018-06-06 17:45 ` [RFC PATCH 03/12] applier: remove extra new line in log message printed on connect Vladimir Davydov
2018-06-08  4:15   ` Konstantin Osipov
2018-06-06 17:45 ` [RFC PATCH 04/12] xrow: add helper function for encoding vclock Vladimir Davydov
2018-06-08  4:16   ` Konstantin Osipov
2018-06-06 17:45 ` [RFC PATCH 05/12] box: retrieve instance uuid before starting local recovery Vladimir Davydov
2018-06-08  4:22   ` Konstantin Osipov
2018-06-06 17:45 ` [RFC PATCH 06/12] box: refactor hot standby recovery Vladimir Davydov
2018-06-08  4:40   ` Konstantin Osipov
2018-06-08  6:43     ` Vladimir Davydov
2018-06-08 13:15       ` Konstantin Osipov
2018-06-08 13:30         ` Vladimir Davydov [this message]
2018-06-06 17:45 ` [RFC PATCH 07/12] box: retrieve end vclock before starting local recovery Vladimir Davydov
2018-06-06 17:45 ` [RFC PATCH 08/12] box: open the port " Vladimir Davydov
2018-06-06 17:45 ` [RFC PATCH 09/12] box: connect to remote peers " Vladimir Davydov
2018-06-06 17:45 ` [RFC PATCH 10/12] box: factor out local recovery function Vladimir Davydov
2018-06-06 17:45 ` [RFC PATCH 11/12] applier: inquire oldest vclock on connect Vladimir Davydov
2018-06-06 17:45 ` [RFC PATCH 12/12] replication: rebootstrap instance on startup if it fell behind Vladimir Davydov

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