[jira] [Created] (HADOOP-13599) s3a close() to be non-synchronized, so avoid risk of deadlock on shutdown

["Steve Loughran (JIRA)" <ji...@apache.org>]

Steve Loughran created HADOOP-13599:
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             Summary: s3a close() to be non-synchronized, so avoid risk of deadlock on shutdown
                 Key: HADOOP-13599
                 URL: https://issues.apache.org/jira/browse/HADOOP-13599
             Project: Hadoop Common
          Issue Type: Sub-task
          Components: fs/s3
    Affects Versions: 2.7.3
            Reporter: Steve Loughran
            Assignee: Steve Loughran


We've had a report of hive deadlocking on teardown, as a synchronous FS close was blocking shutdown threads, similar to HADOOP-3139

S3a close needs to be made non-synchronized. All we need is some code to prevent re-entrancy at the start; easily done



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