[jira] [Created] (HDFS-6690) Deduplicate xattr names in memory

[Andrew Wang (JIRA)]

Andrew Wang created HDFS-6690:
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             Summary: Deduplicate xattr names in memory
                 Key: HDFS-6690
                 URL: https://issues.apache.org/jira/browse/HDFS-6690
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: namenode
    Affects Versions: 2.5.0
            Reporter: Andrew Wang
            Assignee: Andrew Wang


When the same string is used repeatedly for an xattr name, we could potentially 
save some NN memory by deduplicating the strings.



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