[jboss-jira] [JBoss JIRA] (JGRP-1616) a memory leak on TCP protocol (leak object is java.net.socket)

Thu Apr 11 02:44:55 EDT 2013

freeliuade freeliuade created JGRP-1616:
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             Summary: a memory leak on TCP protocol (leak object is java.net.socket)
                 Key: JGRP-1616
                 URL: https://issues.jboss.org/browse/JGRP-1616
             Project: JGroups
          Issue Type: Feature Request
    Affects Versions: 2.12.1
         Environment: two node using TCP as transport protocol
            Reporter: freeliuade freeliuade
            Assignee: Bela Ban
            Priority: Minor

in our product stress test, we will kill/restart one node continouslly, and we using GC Viewer find there is a tiny memory leak, and finally we find the leak object is java.net.Socket.

next we find the socket object is hold by DefaultSocketFactory's sockets map.

more investigate/debug, (uncertain, hope it can help identify the issue) 
in TCPConnectionMap$Mapper.getConnection(Address dest), it will get a TCPConnection from conns hashmap, then it find the conn is not open, and recreated a new connection, but it seems hasn't close the old one.

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