Attila Bukor created KUDU-2436:
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Summary: Add WRONG_SERVER_UUID for master server matrix
Key: KUDU-2436
URL: https://issues.apache.org/jira/browse/KUDU-2436
Project: Kudu
Issue Type: Improvement
Reporter: Attila Bukor
KUDU-2364 and KUDU-2426 added a WRONG_SERVER_UUID status for tablet servers
where the UUID doesn't match the expected one (i.e a new tablet server was
created on an existing bind address). This should be added for masters as well.
This is trickier for masters as the tablet server's UUIDs are known ahead of
time from a central authority (leader masters). We do not have authoritative
uuids for the masters, just the addresses from the command line. The test that
comes to mind is that if a leader master expected UUID A but the master reports
UUID B, it's an imposter. We can't do that check in FetchInfo. We also can't do
it if there's no leader master.
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