Reducing memory consumption on Namenode : Part 1
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Key: HADOOP-803
URL: http://issues.apache.org/jira/browse/HADOOP-803
Project: Hadoop
Issue Type: Bug
Reporter: Raghu Angadi
Assigned To: Raghu Angadi
There appears to be some places in Namenode that allow reducing memory
consumption without intrusive code or feature changes. This bug is an initial
attempt making those changes. Please include your thoughts as well.
One change I am planning to make :
Currently one copy of each block exists for each of the replicas and one copy
for blockMap. I think they are all supposed to be same.
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