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Date: Thu, 19 Jul 2018 10:11:51 +0300
From: Konstantin Osipov <kostja@tarantool.org>
Subject: Re: [PATCH v3 05/11] gc: keep track of vclocks instead of signatures
Message-ID: <20180719071151.GE11373@chai>
References: <cover.1531598427.git.vdavydov.dev@gmail.com>
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In-Reply-To: <5ffe27c174c737fecfb4f2b42c2ab7b9332145a2.1531598427.git.vdavydov.dev@gmail.com>
To: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: tarantool-patches@freelists.org
List-ID: <tarantool-patches.dev.tarantool.org>

* Vladimir Davydov <vdavydov.dev@gmail.com> [18/07/14 23:50]:
> In order to check if a replica needs to be rebootstrapped, we need to
> know the vclock of the oldest WAL stored on the master, but the garbage
> collector works with signatures and hence can't report the vclock it was
> last called for. Actually, all gc users have a vclock and can pass it
> instead of signature so it's pretty easy to switch garbage collection
> infrastructure to vclock.

Pushed, with a small follow-up.

-- 
Konstantin Osipov, Moscow, Russia, +7 903 626 22 32
http://tarantool.io - www.twitter.com/kostja_osipov