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Jitendra Nath Pandey commented on HADOOP-7973: ---------------------------------------------- {quote} Connections are reused right? So this should not be an issue. I remember having some issue related to having file system cache growing huge and causing memory issues. {quote} It is correct that connections are re-used and cache growing huge is also an issue that we have seen before. It was fixed by calling closeAllForUGI in TaskTracker. > DistributedFileSystem close has severe consequences > --------------------------------------------------- > > Key: HADOOP-7973 > URL: https://issues.apache.org/jira/browse/HADOOP-7973 > Project: Hadoop Common > Issue Type: Bug > Components: fs > Affects Versions: 1.0.0 > Reporter: Daryn Sharp > Assignee: Daryn Sharp > Priority: Blocker > Attachments: HADOOP-7973.patch > > > The way {{FileSystem#close}} works is very problematic. Since the > {{FileSystems}} are cached, any {{close}} by any caller will cause problems > for every other reference to it. Will add more detail in the comments. -- 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