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  1. ZooKeeper
  2. ZOOKEEPER-3019

Add a metric to track number of slow fsyncs

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      Description

      Add jmx bean and Command to ZooKeeper server to expose the the number of slow fsyncs as a metric.

      FileTxnLog.commit() should count the number of times fsync exceeds fsyncWarningThresholdMS.

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            • Assignee:
              nkalmar Norbert Kalmár
              Reporter:
              nkalmar Norbert Kalmár
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