[ https://issues.jboss.org/browse/WFLY-8160?page=com.atlassian.jira.plugin.... ] Tomaz Cerar commented on WFLY-8160: ----------------------------------- Looking at the output of the file leak detector, there are no leaks in any of WildFly related code. However, you do have somewhat a problem with **LOTS** of open sockets that are opened by zeromq. This is the trace that repeates pretty much through the whole file: {noformat} 2017-03-23 17:30:38,412 ERROR [AbstractLoggingWriter] (iothread-2) Opened socket channel by thread:iothread-2 on Thu Mar 23 17:30:38 PDT 2017 at sun.nio.ch.SocketChannelImpl.<init>(SocketChannelImpl.java:108) at sun.nio.ch.SelectorProviderImpl.openSocketChannel(SelectorProviderImpl.java:60) at java.nio.channels.SocketChannel.open(SocketChannel.java:145) at zmq.TcpConnecter.open(TcpConnecter.java:292) at zmq.TcpConnecter.startConnecting(TcpConnecter.java:215) at zmq.TcpConnecter.timerEvent(TcpConnecter.java:206) at zmq.IOObject.timerEvent(IOObject.java:129) at zmq.PollerBase.executeTimers(PollerBase.java:131) at zmq.Poller.run(Poller.java:187) at java.lang.Thread.run(Thread.java:745) {noformat} In linux open socket channel also consumes file descriptor and this is most probably your root cause of the issue. -- This message was sent by Atlassian JIRA (v7.2.3#72005)