DFS Scalability: high cpu usage in addStoredBlock
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Key: HADOOP-1149
URL: https://issues.apache.org/jira/browse/HADOOP-1149
Project: Hadoop
Issue Type: Bug
Components: dfs
Reporter: dhruba borthakur
I have seen addStoredBlock() consume lots of CPU. One possible cause is that it
invokes proccessOverReplicatedBlock. The logic to find and purge
over-replicated blocks can be done much less often.
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