Description
Related dev. issue(s): tarantool/tarantool#10088
Product: Tarantool
Since: 3.2
Root document:
- https://www.tarantool.io/en/doc/latest/concepts/replication/repl_sync/
- https://www.tarantool.io/en/doc/latest/how-to/replication/repl_bootstrap_auto/#adding-and-removing-instances
- https://www.tarantool.io/en/doc/latest/reference/configuration/configuration_reference/#configuration-reference-replication-synchro-quorum
SME: @ CuriousGeorgiy
Details
The deleted replica will now apply its own deletion from the _cluster
space. This will allow to delete a node regardless of
the current configuration in case the _cluster space is synchronous. The
deleted replica will need to be resubscribed, and if it is restarted
before resubscription, it needs to be started as an anonymous replica.
However, if a replica is down, then it will still be impossible to remove
it from a 2-member cluster without manual lowering of the
replication_synchro_quorum option. In such a scenario the instance should
not be turned off before it is dropped from the _cluster space when
synchronous replication is enabled for the _cluster space.
Requested by @ CuriousGeorgiy in tarantool/tarantool@25aac11.