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Kihwal Lee commented on HDFS-3646: ---------------------------------- Thanks Uma. That makes sense. > LeaseRenewer can hold reference to inactive DFSClient instances forever > ----------------------------------------------------------------------- > > Key: HDFS-3646 > URL: https://issues.apache.org/jira/browse/HDFS-3646 > Project: Hadoop HDFS > Issue Type: Bug > Components: hdfs client > Affects Versions: 0.23.3, 2.0.0-alpha > Reporter: Kihwal Lee > Assignee: Kihwal Lee > Priority: Critical > Fix For: 0.23.3, 2.0.1-alpha, 3.0.0 > > > If {{LeaseRenewer#closeClient()}} is not called, {{LeaseRenewer}} keeps the > reference to a {{DFSClient}} instance in {{dfsclients}} forever. This > prevents {{DFSClient}}, {{LeaseRenewer}}, conf, etc. from being garbage > collected, leading to memory leak. > {{LeaseRenewer}} should remove the reference after some delay, if a > {{DFSClient}} instance no longer has active streams. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira