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https://issues.apache.org/jira/browse/HDFS-7846?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14354980#comment-14354980
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Yi Liu commented on HDFS-7846:
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Another comment is about block replicas: the replication number of file can be
changed, then we will re-allocate off-heap memory for the blocks of file? A
better way is to allocate separate off-heap memory for the replicas of block,
then we just need to change that part?
> Create off-heap BlocksMap and BlockData structures
> --------------------------------------------------
>
> Key: HDFS-7846
> URL: https://issues.apache.org/jira/browse/HDFS-7846
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Affects Versions: HDFS-7836
> Reporter: Colin Patrick McCabe
> Assignee: Colin Patrick McCabe
> Attachments: HDFS-7846-scl.001.patch
>
>
> Create off-heap BlocksMap, BlockInfo, and DataNodeInfo structures. The
> BlocksMap will use the off-heap hash table.
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