[jira] [Created] (HDFS-5498) Improve datanode startup time

[Kihwal Lee (JIRA)]

Kihwal Lee created HDFS-5498:
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             Summary: Improve datanode startup time
                 Key: HDFS-5498
                 URL: https://issues.apache.org/jira/browse/HDFS-5498
             Project: Hadoop HDFS
          Issue Type: Improvement
            Reporter: Kihwal Lee


Similarly to HDFS-5027, an improvement  can be made for getVomeMap(). This is 
the phase in which ReplicaMap.is populated.  But it will be even better if 
datanode scans only once and do both.



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