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Chris Nauroth commented on HDFS-7836: ------------------------------------- I have one additional operability concern. With off-heaping, we're going to lose the ability to measure the size of the block map with well-known tools like {{jmap}}. Do you have any thoughts on compensating for this? Maybe we could publish new JMX counters with the off-heap size stats? > BlockManager Scalability Improvements > ------------------------------------- > > Key: HDFS-7836 > URL: https://issues.apache.org/jira/browse/HDFS-7836 > Project: Hadoop HDFS > Issue Type: Improvement > Reporter: Charles Lamb > Assignee: Charles Lamb > Attachments: BlockManagerScalabilityImprovementsDesign.pdf > > > Improvements to BlockManager scalability. -- This message was sent by Atlassian JIRA (v6.3.4#6332)