hu xiaodong created HDFS-13046:
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Summary: consider load of datanodes when read blocks of file
Key: HDFS-13046
URL: https://issues.apache.org/jira/browse/HDFS-13046
Project: Hadoop HDFS
Issue Type: New Feature
Reporter: hu xiaodong
Assignee: hu xiaodong
When sorting block locations, we just consider the distance of datanodes. can
we consider the load of datanodes? We can add a configuration such as
'dfs.namenode.reading.considerLoad', if set to true, then sort the
blocklocations by load of the datanodes, otherwise sort by distance.
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