File Leak Detector Plugin

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Plugin Information

Plugin ID file-leak-detector Changes In Latest Release
Since Latest Release
Latest Release
Latest Release Date
Required Core
Sep 11, 2013
Source Code
Issue Tracking
Open Issues
n/a (id: kohsuke)
Usage Installations 2013-Apr 132
2013-May 137
2013-Jun 144
2013-Jul 159
2013-Aug 158
2013-Sep 170
2013-Oct 184
2013-Nov 177
2013-Dec 177
2014-Jan 204
2014-Feb 222
2014-Mar 263

Runtime diagnosis tool for "too many open files" problem.

This plugin watches file descriptor open/close activities of JVM and allow you to see the list of what's currently opened, and Java call stack that opened the file. If you are suffering from the too many open files problem, this report enables the developers to fix the leak.


This plugin adds "Open File Handles" item in the "Manage Jenkins" page. Go to this page and click "activate" button to activate the monitoring. Once this is done, a Java agent is installed on the JVM and starts monitoring new file open/close activities. Revisit the "Open File Handles" page and you'll see the currently opened files.

To help the developers, activate this, and let Jenkins run for a while, then come back and capture the report and attach it to a ticket. Do get a few reports with intervals of 10 mins or so, so that we can distinguish real leaks from false positives.


Version 1.2 (Apr 3, 2012)

  • Improved the compatibility with the monitoring plugin by forking a separate JVM to do the attachment.

Version 1.1 (Apr 3, 2012)

  • First public release


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