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From "Jonathan Halterman (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ZOOKEEPER-3445) Concurrency issue in ReferenceCountedACLCache
Date Tue, 25 Jun 2019 20:30:00 GMT
Jonathan Halterman created ZOOKEEPER-3445:
---------------------------------------------

             Summary: Concurrency issue in ReferenceCountedACLCache
                 Key: ZOOKEEPER-3445
                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3445
             Project: ZooKeeper
          Issue Type: Bug
          Components: server
    Affects Versions: 3.4.14, 3.5.5
            Reporter: Jonathan Halterman


While debugging some unexpected "ACL not available for long" exceptions we were seeing, I
noticed that ReferenceCountedACLCache does not mark aclIndex as volatile, which it should
since it appears to be read from multiple threads. This may or may not be the cause of the
behavior we're seeing, but should be fixed regardless.



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