Good day, I agree with Emmanuel suggestions on this issue. Still, if you cannot resolve this issue, I think Niklas implemented in the Trunk version some changes on the way passive ports are allocated, so you might want to try that version.
2015-06-30 17:52 GMT+02:00 Michael Benovich <m...@hostedftp.com>: > Hi, > > We have been running ftpserver 1.0.6 in a production environment for > several years. Last week we encountered an issue that we have not > encountered before. > > We began to see intermittent failures when trying to enter passive mode. A > review of our logs showed multiple errors (sample trace below) with the > warning "Failed to open passive data connection... (Cannot find an > available passive port)". Our configuration includes a passive port range > of 800 ports, and based on our internal metrics and "netstat" output, we do > not believe we were using anywhere near this many ports at the time of > these errors. Restarting our java application resolved the issue. > > Are there any known conditions where ftpserver could be consuming a larger > number of passive ports than expected? If so, what is the recommended > approach to detect and resolve? > > > Many thanks, > Mike > > > Detailed error trace: > > Jun 25, 2015 12:07:03 PM org.apache.ftpserver.command.impl.PASV execute > WARNING: Failed to open passive data connection > org.apache.ftpserver.DataConnectionException: Cannot find an available > passive port. > at > > org.apache.ftpserver.impl.IODataConnectionFactory.initPassiveDataConnection(IODataConnectionFactory.java:170) > at org.apache.ftpserver.command.impl.PASV.execute(PASV.java:73) > at > > org.apache.ftpserver.impl.DefaultFtpHandler.messageReceived(DefaultFtpHandler.java:210) > at > > org.apache.ftpserver.listener.nio.FtpHandlerAdapter.messageReceived(FtpHandlerAdapter.java:61) > at > > org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.messageReceived(DefaultIoFilterChain.java:716) > at > > org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434) > at > > org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46) > at > > org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796) > at > > org.apache.ftpserver.listener.nio.FtpLoggingFilter.messageReceived(FtpLoggingFilter.java:85) > at > > org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434) > at > > org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46) > at > > org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796) > at > org.apache.mina.core.filterchain.IoFilterEvent.fire(IoFilterEvent.java:75) > at > > org.apache.mina.filter.logging.MdcInjectionFilter.filter(MdcInjectionFilter.java:136) > at > > org.apache.mina.filter.util.CommonEventFilter.messageReceived(CommonEventFilter.java:70) > at > > org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434) > at > > org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46) > at > > org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796) > at > > org.apache.mina.filter.codec.ProtocolCodecFilter$ProtocolDecoderOutputImpl.flush(ProtocolCodecFilter.java:427) > at > > org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:245) > at > > org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434) > at > > org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46) > at > > org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796) > at > org.apache.mina.core.filterchain.IoFilterEvent.fire(IoFilterEvent.java:75) > at org.apache.mina.core.session.IoEvent.run(IoEvent.java:63) > at > > org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.runTask(OrderedThreadPoolExecutor.java:780) > at > > org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.runTasks(OrderedThreadPoolExecutor.java:772) > at > > org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.run(OrderedThreadPoolExecutor.java:714) > at java.lang.Thread.run(Thread.java:722) > > Jun 25, 2015 12:07:03 PM org.apache.mina.filter.logging.LoggingFilter log > INFO: SENT: 425 Can't open passive connection. >
