From: Konstantin Osipov <kostja@tarantool.org>
To: tarantool-patches@freelists.org
Cc: Olga Arkhangelskaia <arkholga@tarantool.org>
Subject: [tarantool-patches] Re: [PATCH v2 1/2] box: added replication_dead/rw_gap options
Date: Tue, 23 Oct 2018 10:10:13 +0300 [thread overview]
Message-ID: <20181023071013.GC9849@chai> (raw)
In-Reply-To: <20181012194557.7445-2-arkholga@tarantool.org>
* Olga Arkhangelskaia <arkholga@tarantool.org> [18/10/13 08:20]:
> In scope of gh-3110 we need options that store periods of time,
> to be compared with time of last activity of relay and applier.
> This patch introduces replication_dead_gap and replication_rw_gap options.
>
> replication_dead_gap is configured in box.cfg, with default 0 value.
> If time that passed from now till last reader/writer activity of given replica
> exceeds replication_dead_gap value, replica is suspected to be dead.
> replication_dead_gap is measured in hours.
>
> replication_rw_gap is configured in box.cfg, with default 0 value.
> If time difference between last reader activity and last writer activity of
> given replica exceeds replication_rw_gap value, replica is suspected to be dead.
> replication_rw_gap is measured in hours.
Why do we need this if we have heartbeats?
And with swim on board we will have gossip information about entire replica set?
> --
--
Konstantin Osipov, Moscow, Russia, +7 903 626 22 32
http://tarantool.io - www.twitter.com/kostja_osipov
next prev parent reply other threads:[~2018-10-23 7:10 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-12 19:45 [tarantool-patches] [PATCH v2 0/2] detect and throw away dead replicas Olga Arkhangelskaia
2018-10-12 19:45 ` [tarantool-patches] [PATCH v2 1/2] box: added replication_dead/rw_gap options Olga Arkhangelskaia
2018-10-15 10:22 ` Vladimir Davydov
2018-10-23 7:10 ` Konstantin Osipov [this message]
2018-10-12 19:45 ` [tarantool-patches] [PATCH v2 2/2] ctl: added functionality to detect and prune dead replicas Olga Arkhangelskaia
2018-10-15 12:43 ` Vladimir Davydov
2018-10-23 18:32 [tarantool-patches] Re: [tarantool-patches] Re: [PATCH v2 1/2] box: added replication_dead/rw_gap options Olga Arkhangelskaia
2018-10-24 16:49 ` Konstantin Osipov
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