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Suresh Srinivas commented on HDFS-4465: --------------------------------------- +1 for the patch. I think we should get this into 2.1.0-beta given it is still waiting for some blockers to be done. Note that there are two branches - branch-2.1 and branch-2.1.0. > Optimize datanode ReplicasMap and ReplicaInfo > --------------------------------------------- > > Key: HDFS-4465 > URL: https://issues.apache.org/jira/browse/HDFS-4465 > Project: Hadoop HDFS > Issue Type: Improvement > Components: datanode > Affects Versions: 2.0.5-alpha > Reporter: Suresh Srinivas > Assignee: Aaron T. Myers > Attachments: dn-memory-improvements.patch, HDFS-4465.patch, > HDFS-4465.patch, HDFS-4465.patch > > > In Hadoop a lot of optimization has been done in namenode data structures to > be memory efficient. Similar optimizations are necessary for Datanode > process. With the growth in storage per datanode and number of blocks hosted > on datanode, this jira intends to optimize long lived ReplicasMap and > ReplicaInfo objects. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira