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[ACTIVE REP] [ENHANCEMENT] Set a static replication ID
When a master node reboots, its replication id is automatically set to a different value. All read-only replicas attached to the master will need to perform a full resync [due to the master's new replication id]. If there are ALOT of read-only replicas, this will significantly drain hardware/network resources as each master reboot forces a resync per read-only replica.
A way to address this would be to offer a configuration option that allows replication ids to be static.
There might be consistency issues (such as lost writes) with this option but at least attached replicas do a partial sync rather than a full resync.
Related issue by a community member : https://github.com/redis/redis/pull/9166