[test] FlussAuthorizationITCase leaks server tag state

[litiliu]

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Fluss version

main (development)

Please describe the bug 🐞

FlussAuthorizationITCase.testAddServerTag adds the PERMANENT_OFFLINE tag to tablet server 0 and starts removing it during cleanup, but does not wait for the returned future.

The next test can therefore create its default replication-factor-3 table while the coordinator still considers only two tablet servers available. This causes InvalidReplicationFactorException: Replication factor: 3 larger than available tablet servers: 2 and may fail several subsequent test setups.

Solution

Wait for removeServerTag(...) to complete before testAddServerTag returns, ensuring the cluster state is restored before the next test starts.

Are you willing to submit a PR?

• I'm willing to submit a PR!