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From: Konstantin Osipov <kostja@tarantool.org>
To: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: tarantool-patches@freelists.org
Subject: Re: [PATCH v2 1/6] xlog: store prev vclock in xlog header
Date: Thu, 5 Jul 2018 09:49:00 +0300	[thread overview]
Message-ID: <20180705064900.GA11571@chai> (raw)
In-Reply-To: <25eb188a0085216aef3a2e292fe14d0df71ede13.1530287767.git.vdavydov.dev@gmail.com>

* Vladimir Davydov <vdavydov.dev@gmail.com> [18/06/29 19:49]:
> This patch adds a new key to xlog header, PrevVclock, which contains the
> vclock of the previous xlog file in the xlog directory. It is set by
> xdir_create_xlog() to the last vclock in xdir::index. The new key is
> only present in XLOG files (it doesn't make sense for SNAP or VYLOG
> anyway). It will be used to make the check for xlog gaps more thorough.

I don't like has_prev_vclock. 

I don't know what to do with it yet. Ideally, I would make it xdir
property - and set it on for xlog dir.

I'm not sure it's feasible, looking.

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

  reply	other threads:[~2018-07-05  6:49 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-29 16:48 [PATCH v2 0/6] Create empty xlog on shutdown Vladimir Davydov
2018-06-29 16:48 ` [PATCH v2 1/6] xlog: store prev vclock in xlog header Vladimir Davydov
2018-07-05  6:49   ` Konstantin Osipov [this message]
2018-07-05  6:52   ` Konstantin Osipov
2018-07-05  8:23     ` Vladimir Davydov
2018-07-05 11:22       ` Konstantin Osipov
2018-07-10 16:28         ` [PATCH] xlog: get rid of xlog_meta::has_prev_vclock Vladimir Davydov
2018-06-29 16:48 ` [PATCH v2 2/6] xlog: differentiate between closed and never opened cursor Vladimir Davydov
2018-06-29 16:48 ` [PATCH v2 3/6] recovery: make LSN gap check more thorough Vladimir Davydov
2018-06-29 16:48 ` [PATCH v2 4/6] recovery: promote recovery clock even if the WAL is empty Vladimir Davydov
2018-06-29 16:48 ` [PATCH v2 5/6] wal: create empty xlog on shutdown Vladimir Davydov
2018-06-29 16:48 ` [PATCH v2 6/6] error: move XlogGapError to box/error.h Vladimir Davydov

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