[tarantool-patches] Re: [PATCH v2 1/2] box: added replication_dead/rw_gap options
kostja at tarantool.org
Tue Oct 23 10:10:13 MSK 2018
* Olga Arkhangelskaia <arkholga at 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
More information about the Tarantool-patches