Derive both vnode_effective_replication_map
and local_effective_replication_map from
static_effective_replication_map as both are static and per-keyspace.
However, local_effective_replication_map does not need vnodes
for the mapping of all tokens to the local node.
Note that everywhere_replication_strategy is not abstracted in a similar
way, although it could, since the plan is to get rid of it
once all system keyspaces areconverted to local or tablets replication
(and propagated everywhere if needed using raft group0)
Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
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