When a directory with huge number of files is deleted, the NN becomes
unresponsive
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Key: HDFS-1393
URL: https://issues.apache.org/jira/browse/HDFS-1393
Project: Hadoop HDFS
Issue Type: Bug
Components: name-node
Reporter: dhruba borthakur
If one deletes a directory with about 2 million files, the namenode becomes
unresponsive for close to 20 seconds. The reason being that the FSnamesystem
lock is held while all the blocks/namespace-entries are freed.
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