[Tarantool-patches] [RFC] gc/xlog: delay xlog cleanup until relays are subscribed
v.shpilevoy at tarantool.org
Thu Mar 18 23:36:33 MSK 2021
On 18.03.2021 08:51, Konstantin Osipov via Tarantool-patches wrote:
> * Cyrill Gorcunov <gorcunov at gmail.com> [21/03/18 10:42]:
>> Good point, thanks! Kostya, lets clarify some moments:
>> 1) We introduce "wal_keep_logs" option which defines
>> a timeout to kick the cleanup fiber.
>> 2) If node is anonymous replica we simply ignore this
>> 3) If this option is set then we have a few subcases:
>> a) The `_cluster` space is not empty thus thus once
>> all replicas are subscribed _before_ the timeout
>> expired we trigger the cleanup fiber since it is
>> safe to process;
>> b) If replicas are not connected and timeout is
>> expired we kick the cleanup fiber;
> I mean this.
Then it should have 'replication_' prefix, not 'wal_'. Because
it is ignored if replicas connect before the timeout expires.
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