[PATCH v2 1/6] xlog: store prev vclock in xlog header

[Konstantin Osipov]

* Vladimir Davydov <vdavydov.dev at 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.

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