Alexey Serbin created KUDU-2457:
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Summary: The catalog manager should make leader replicas step down
if they are marked with the REPLACE attribute
Key: KUDU-2457
URL: https://issues.apache.org/jira/browse/KUDU-2457
Project: Kudu
Issue Type: Improvement
Components: consensus, master
Affects Versions: 1.7.0
Reporter: Alexey Serbin
As of now (May 2018), the {{kudu tablet change_config move_replica}} tool or
the rebalancer tool (https://gerrit.cloudera.org/#/c/10399/) both have special
provision to take care of a source leader replica: they make stepping down
after the non-voter replica has caught up. That leaves the space for
situations with over-replicated tablets when the tool is interrupted after it
set the 'REPLACE' attribute but before the leader source replica is gone.
Making the catalog manager taking care of the leader replicas marked with the
'REPLACE' attribute would help to clean up tablets' configurations in such
cases.
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