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https://issues.apache.org/jira/browse/FTPSERVER-333?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12756736#action_12756736
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Niklas Gustavsson commented on FTPSERVER-333:
---------------------------------------------
In this case, it looks like you get a time out in the TCP/IP stack, rather than
FtpServer. That is, your OS gives up on establishing a socket back to the
client after a timeout. Thus, this is not related to the timeouts set in the
FtpServer configuration. You probably need to look into why the server can not
reach the client e.g. due to a firewall setting
> Connection Timed Out Prior to Idle Timeout
> ------------------------------------------
>
> Key: FTPSERVER-333
> URL: https://issues.apache.org/jira/browse/FTPSERVER-333
> Project: FtpServer
> Issue Type: Bug
> Affects Versions: 1.0.2
> Reporter: Nick Padgett
>
> The connection has timed out (189s) prior to the idle timeout (at 300s) 10
> times in the last 16 days. Am I misinterpreting which idle timeout value is
> being used, or is something else going on? Of the 10 times I've seen this
> issue, the connection timed out at exactly 189s +/-1s (188.968, 188.971,
> 188.972, 188.971, 188.97, 188.972, 188.971, 188.963, 189.375, 188.97). 189
> is less than the 300 value configured.
> <code>
> 896164276 [pool-2-thread-260] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - OPENED
> 896164277 [pool-2-thread-260] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - SENT: 220 Service ready
> for new user.
> 896164338 [pool-2-thread-260] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - RECEIVED: USER npadgett
> 896164385 [pool-2-thread-260] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - SENT: 331 User name
> okay, need password for npadgett.
> 896164408 [pool-2-thread-260] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - SENT: 230 User logged
> in, proceed.
> 896164410 [pool-2-thread-260] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - RECEIVED: PWD
> 896164410 [pool-2-thread-260] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - SENT: 257 "/" is
> current directory.
> 896164411 [pool-2-thread-260] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - RECEIVED: TYPE A
> 896164412 [pool-2-thread-260] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - SENT: 200 Command TYPE
> okay.
> 896164414 [pool-2-thread-260] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - RECEIVED: LIST
> 896353789 [pool-2-thread-260] WARN
> org.apache.ftpserver.impl.IODataConnectionFactory -
> FtpDataConnection.getDataSocket()
> java.net.ConnectException: Connection timed out
> at java.net.PlainSocketImpl.socketConnect(Native Method)
> at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
> at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
> at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
> at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
> at java.net.Socket.connect(Socket.java:519)
> at java.net.Socket.connect(Socket.java:469)
> at
> org.apache.ftpserver.impl.IODataConnectionFactory.createDataSocket(IODataConnectionFactory.java:314)
> at
> org.apache.ftpserver.impl.IODataConnectionFactory.openConnection(IODataConnectionFactory.java:259)
> at org.apache.ftpserver.command.impl.LIST.execute(LIST.java:114)
> 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:721)
> at
> org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:433)
> at
> org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:47)
> at
> org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:801)
> at
> org.apache.ftpserver.listener.nio.FtpLoggingFilter.messageReceived(FtpLoggingFilter.java:85)
> at
> org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:433)
> at
> org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:47)
> at
> org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:801)
> at
> org.apache.mina.core.filterchain.IoFilterEvent.fire(IoFilterEvent.java:71)
> 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:433)
> at
> org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:47)
> at
> org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:801)
> at
> org.apache.mina.filter.codec.ProtocolCodecFilter$ProtocolDecoderOutputImpl.flush(ProtocolCodecFilter.java:375)
> at
> org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:229)
> at
> org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:433)
> at
> org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:47)
> at
> org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:801)
> at
> org.apache.mina.core.filterchain.IoFilterEvent.fire(IoFilterEvent.java:71)
> at org.apache.mina.core.session.IoEvent.run(IoEvent.java:63)
> at
> org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.runTask(OrderedThreadPoolExecutor.java:801)
> at
> org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.runTasks(OrderedThreadPoolExecutor.java:793)
> at
> org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.run(OrderedThreadPoolExecutor.java:735)
> at java.lang.Thread.run(Thread.java:619)
> 896353790 [pool-2-thread-260] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - SENT: 150 File status
> okay; about to open data connection.
> 896353790 [pool-2-thread-260] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - CLOSED
> </code>
> From spring.xml:
> <code>
> <bean id="dataConnectionConfigurationFactory"
> class="org.apache.ftpserver.DataConnectionConfigurationFactory">
> <property name="activeEnabled" value="true" />
> <property name="activeIpCheck" value="false" />
> <property name="idleTime" value="60" />
> ...
> </bean>
> ...
> <bean id="listenerFactory"
> class="org.apache.ftpserver.listener.ListenerFactory">
> <property name="idleTimeout" value="300" />
> ...
> </bean>
> ...
> </code>
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