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https://issues.apache.org/jira/browse/FTPSERVER-435?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
David Latorre closed FTPSERVER-435.
-----------------------------------
Resolution: Won't Fix
Assignee: David Latorre
> FTPClient - 3.0.1 - Randomly throwing connection timed out error during
> listfile / connect
> ------------------------------------------------------------------------------------------
>
> Key: FTPSERVER-435
> URL: https://issues.apache.org/jira/browse/FTPSERVER-435
> Project: FtpServer
> Issue Type: Bug
> Reporter: vijayan
> Assignee: David Latorre
> Priority: Critical
>
> Previously we were using common-net-2.2 version and at sometimes we used to
> get FTPconnectionclosedexception. This was resolved by upgrading to
> commons-net-3.0.1 version using control keep-alive timeout feature. Now we
> are facing another issue in a random time interval in our production
> environment. Most of the times it works fine but at time during
> ftpclient.listfiles /ftpclient.connect call we are getting the connection
> timed out exception. Please see the exception stacktrace.
> java.net.ConnectException: Connection timed out
> at java.net.PlainSocketImpl.socketConnect(Native Method)
> at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
> at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
> at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
> at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
> at java.net.Socket.connect(Socket.java:529)
> at
> org.apache.commons.net.ftp.FTPClient._openDataConnection_(FTPClient.java:726)
> at
> org.apache.commons.net.ftp.FTPClient.initiateListParsing(FTPClient.java:2990)
> at
> org.apache.commons.net.ftp.FTPClient.initiateListParsing(FTPClient.java:2965)
> at org.apache.commons.net.ftp.FTPClient.listFiles(FTPClient.java:2685)
> ================================================================
> java.net.ConnectException: Connection timed out
> at java.net.PlainSocketImpl.socketConnect(Native Method)
> at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
> at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
> at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
> at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
> at java.net.Socket.connect(Socket.java:529)
> at org.apache.commons.net.SocketClient.connect(SocketClient.java:168)
> at org.apache.commons.net.SocketClient.connect(SocketClient.java:189)
> Neven seen / faced this kind of exception when using 2.2 version. This is
> been occurring after the upgradation.
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