[jira] [Created] (HDFS-6919) Consider enforcing single limit for RAM disk usage and replicas cached via locking

[Arpit Agarwal (JIRA)]

Arpit Agarwal created HDFS-6919:
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             Summary: Consider enforcing single limit for RAM disk usage and 
replicas cached via locking
                 Key: HDFS-6919
                 URL: https://issues.apache.org/jira/browse/HDFS-6919
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: Arpit Agarwal


The DataNode can have a single limit for memory usage which applies to both 
replicas cached via CCM and replicas on RAM disk.

See comments 
[1|https://issues.apache.org/jira/browse/HDFS-6581?focusedCommentId=14106025&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14106025],
 
[2|https://issues.apache.org/jira/browse/HDFS-6581?focusedCommentId=14106245&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14106245]
 and 
[3|https://issues.apache.org/jira/browse/HDFS-6581?focusedCommentId=14106575&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14106575]
 for discussion.



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