Rory,

I've just tried to drop in the new JAR, but apparently there are some
changes to the API (e.g. setReaderThread() method was not found), so I'll
have to modify servicemix's FTP component to be able to test it.  I'll try
to do it over the weekend so I can test it next week.  Expect some feedback
by then...

Thanks for the help,

Gert


Rory Winston wrote:
> 
> Hi Gert
> 
> There may be a combination of issues here. Can you try the 2.0 RC?
> 
> http://people.apache.org/~rwinston/commons-net-2.0/commons-net-ftp-2.0.0-SNAPSHOT.jar
> 
> You will need to be running JDK 5.0/6.0 for this. This has fixes for
> various threading issues. Of course, if you are constrained toJDK 1.4.x,
> this wont work for you. As regards the potential IIS issue, this is
> difficult for me to comment on, as I dont currently have access to an IIS
> 6.0 FTP server. If anyone knows of a public one that I can make use of
> somewhere, then I could try to reproduce your issue. 
> 
> Thanks
> Rory
> 
> 
> 
> "Jakarta Commons Users List" <commons-user@jakarta.apache.org> wrote:
> 
>> 
>> 
>> And yet another piece of the puzzle...  I also get the stacktrace [2]
>> below
>> when closing the application.  Is this the same thing that is fixed with
>> JIRA issue NET-3 [1]?  
>> 
>> Regards, 
>> 
>> Gert
>> 
>> [1] https://issues.apache.org/jira/browse/NET-3
>> [2] the stack trace
>> java.io.IOException: Fatal thread interruption during read.
>> 
>>         at
>> org.apache.commons.net.telnet.TelnetInputStream.read(TelnetInputStream.java:344)
>> 
>>         at
>> org.apache.commons.net.telnet.TelnetInputStream.read(TelnetInputStream.java:466)
>> 
>>         at
>> java.io.BufferedInputStream.read1(BufferedInputStream.java:254)
>> 
>>         at java.io.BufferedInputStream.read(BufferedInputStream.java:313)
>> 
>>         at
>> sun.nio.cs.StreamDecoder$CharsetSD.readBytes(StreamDecoder.java:411)
>> 
>>         at
>> sun.nio.cs.StreamDecoder$CharsetSD.implRead(StreamDecoder.java:453)
>> 
>>         at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:183)
>> 
>>         at java.io.InputStreamReader.read(InputStreamReader.java:167)
>> 
>>         at java.io.BufferedReader.fill(BufferedReader.java:136)
>> 
>>         at java.io.BufferedReader.readLine(BufferedReader.java:299)
>> 
>>         at java.io.BufferedReader.readLine(BufferedReader.java:362)
>> 
>>         at org.apache.commons.net.ftp.FTP.__getReply(FTP.java:264)
>> 
>>         at org.apache.commons.net.ftp.FTP.getReply(FTP.java:605)
>> 
>>         at
>> org.apache.commons.net.ftp.FTPClient.completePendingCommand(FTPClient.java:1253)
>> 
>>         at
>> org.apache.commons.net.ftp.FTPClient.initiateListParsing(FTPClient.java:2400)
>> 
>>         at
>> org.apache.commons.net.ftp.FTPClient.initiateListParsing(FTPClient.java:2364)
>> 
>>         at
>> org.apache.commons.net.ftp.FTPClient.listFiles(FTPClient.java:2141)
>> 
>>         at
>> org.apache.servicemix.ftp.FtpPollerEndpoint.pollFileOrDirectory(FtpPollerEndpoint.java:210)
>> 
>>         at
>> org.apache.servicemix.ftp.FtpPollerEndpoint.pollFileOrDirectory(FtpPollerEndpoint.java:202)
>> 
>>         at
>> org.apache.servicemix.ftp.FtpPollerEndpoint.poll(FtpPollerEndpoint.java:77)
>> 
>>         at
>> org.apache.servicemix.common.endpoints.PollingEndpoint$PollSchedulerTask$1.run(PollingEndpoint.java:155)
>> 
>>         at
>> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
>> 
>>         at
>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
>> 
>>         at java.lang.Thread.run(Thread.java:595)
>> 
>> 
>> Gert Vanthienen wrote:
>> > 
>> > L.S.,
>> > 
>> > I have changed the FTP poller's code, so the stream is always closed
>> and
>> > completePendingCommand is called, but that doesn't solve my problem. 
>> One
>> > additional observation though: the problem only occurs when the FTP
>> server
>> > is Microsoft's IIS...  Any thoughts?
>> > 
>> > Regards,
>> > 
>> > Gert
>> > 
>> > 
>> > Gert Vanthienen wrote:
>> >> 
>> >> L.S.,
>> >> 
>> >> Still trying to solve the FTP problem in ServiceMix, I'm a bit unsure
>> >> about the usage of completePendingCommand() in our code, which looks
>> >> about like this:
>> >> - calling retrieveInputStream() 
>> >> - reading from the the stream
>> >> - closing the stream 
>> >> - call the completePendingCommand() method
>> >> 
>> >> Under some conditions (Exceptions being thrown), the close() and
>> >> completePendingCommand() are never called.  Could the Exception below
>> be
>> >> caused by continuing to use the same FTPClient instance for other FTP
>> >> operations afterwards?
>> >> 
>> >> Regards,
>> >> 
>> >> Gert
>> >> 
>> >> 
>> >> Gert Vanthienen wrote:
>> >>> 
>> >>> Rory,
>> >>> 
>> >>> We are using commons-net-1.4.1.jar.
>> >>> 
>> >>> Gert
>> >>> 
>> >>> 
>> >>> 
>> >>> Rory Winston wrote:
>> >>>> 
>> >>>> Gert
>> >>>> 
>> >>>> What version of [net] are you using?
>> >>>> Rory
>> >>>> 
>> >>>> "Jakarta Commons Users List" <commons-user@jakarta.apache.org>
>> wrote:
>> >>>> 
>> >>>>> 
>> >>>>> 
>> >>>>> L.S.,
>> >>>>> 
>> >>>>> 
>> >>>>> I'm using Apache ServiceMix's FTP component, which uses commons net
>> >>>>> FTPClient classes internally to poll for files on an FTP server. 
>> >>>>> After a
>> >>>>> while, the polling threads lock up with the stacktrace mentioned
>> >>>>> below: I'm
>> >>>>> trying to solve this issue.  What can be the cause of this lockup
>> and
>> >>>>> how
>> >>>>> can I avoid this?  Is there a way to specify a time-out on this
>> >>>>> operation?
>> >>>>> 
>> >>>>> 
>> >>>>> Regards,
>> >>>>> 
>> >>>>> Gert Vanthienen
>> >>>>> 
>> >>>>> 
>> >>>>> 
>> >>>>> Stack trace:
>> >>>>>    java.net.PlainSocketImpl.socketAccept(Native Method)
>> >>>>>    java.net.PlainSocketImpl.accept(PlainSocketImpl.java:384)
>> >>>>>    java.net.ServerSocket.implAccept(ServerSocket.java:450)
>> >>>>>    java.net.ServerSocket.accept(ServerSocket.java:421)
>> >>>>>   
>> >>>>>
>> org.apache.commons.net.ftp.FTPClient._openDataConnection_(FTPClient.java:502)
>> >>>>>   
>> >>>>>
>> org.apache.commons.net.ftp.FTPClient.initiateListParsing(FTPClient.java:2390)
>> >>>>>   
>> >>>>>
>> org.apache.commons.net.ftp.FTPClient.initiateListParsing(FTPClient.java:2364)
>> >>>>>   
>> org.apache.commons.net.ftp.FTPClient.listFiles(FTPClient.java:2141)
>> >>>>>   
>> >>>>>
>> org.apache.servicemix.ftp.FtpPollerEndpoint.pollFileOrDirectory(FtpPollerEndpoint.java:211)
>> >>>>>   
>> >>>>>
>> org.apache.servicemix.ftp.FtpPollerEndpoint.pollFileOrDirectory(FtpPollerEndpoint.java:203)
>> >>>>>   
>> >>>>>
>> org.apache.servicemix.ftp.FtpPollerEndpoint.poll(FtpPollerEndpoint.java:78)
>> >>>>>    ...
>> >>>>> -- 
>> >>>>> View this message in context:
>> >>>>>
>> http://www.nabble.com/-net--FTPClient.listFiles-stalls...-tf3491086.html#a9749725
>> >>>>> Sent from the Commons - User mailing list archive at Nabble.com.
>> >>>>> 
>> >>>>> 
>> >>>>>
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>> > 
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