Daryn Sharp created HDFS-14533:
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             Summary: Datanode short circuit cache can become blocked
                 Key: HDFS-14533
                 URL: https://issues.apache.org/jira/browse/HDFS-14533
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: datanode
            Reporter: Daryn Sharp


Errors in the short circuit cache can leave clients indefinitely blocked in 
{{ShortCircuitCache#fetch}} on a waitable's condition that will never be 
signaled.  The condition wait should be bounded with a timeout.



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