LeaseChecker daemon should not be started in DFSClient constructor
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Key: HADOOP-3169
URL: https://issues.apache.org/jira/browse/HADOOP-3169
Project: Hadoop Core
Issue Type: Improvement
Components: dfs
Reporter: Tsz Wo (Nicholas), SZE
LeaseChecker daemon periodically renew leases with NameNode. However, if there
is no file creation, LeaseChecker daemon should not be started for saving
resources and better performance.
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