### What changes were proposed in this pull request? This pull PR is an integral component of #1639 . It primarily focuses on updating configuration settings and metrics terminology, while ensuring compatibility with older client versions by refraining from introducing changes related to RPC. ### Why are the changes needed? In order to distinguish it from the existing master/worker, refactor data replication terminology to 'primary/replica' for improved clarity and inclusivity in the codebase ### Does this PR introduce _any_ user-facing change? No ### How was this patch tested? existing tests. Closes #1650 from cfmcgrady/primary-replica-metrics. Authored-by: Fu Chen <cfmcgrady@gmail.com> Signed-off-by: Cheng Pan <chengpan@apache.org> |
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