nijel created HDFS-9201:
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Summary: Namenode Performance Improvement : Using for loop without
iterator
Key: HDFS-9201
URL: https://issues.apache.org/jira/browse/HDFS-9201
Project: Hadoop HDFS
Issue Type: Improvement
Reporter: nijel
Assignee: nijel
As discussed in HBASE-12023, the for each loop syntax will create few extra
objects and garbage.
For arrays and Lists can change to the traditional syntax.
This can improve memory foot print and can result in performance gain.
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