Eungsop Yoo created HDFS-16198:
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Summary: Short circuit read leaks Slot objects when InvalidToken
exception is thrown
Key: HDFS-16198
URL: https://issues.apache.org/jira/browse/HDFS-16198
Project: Hadoop HDFS
Issue Type: Bug
Reporter: Eungsop Yoo
In secure mode, 'dfs.block.access.token.enable' should be set 'true'. With this
configuration SecretManager.InvalidToken exception may be thrown if the access
token expires when we do short circuit reads. It doesn't matter because the
failed reads will be retried. But it causes the leakage of ShortCircuitShm.Slot
objects. We found this problem in our secure HBase clusters.
The fix is trivial. Just free the slot when InvalidToken exception is thrown.
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