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Suresh Srinivas commented on HDFS-5242: --------------------------------------- Alternatively, this can be done in a lockless fashion using AtomicReference. Let me know if you want me to upload a patch for that. > Reduce contention on DatanodeInfo instances > ------------------------------------------- > > Key: HDFS-5242 > URL: https://issues.apache.org/jira/browse/HDFS-5242 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: namenode > Affects Versions: 2.0.0-alpha, 3.0.0 > Reporter: Daryn Sharp > Assignee: Daryn Sharp > Attachments: HDFS-5242.patch > > > Synchronization in {{DatanodeInfo}} instances causes unnecessary contention > between call handlers. -- This message was sent by Atlassian JIRA (v6.1.4#6159)