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https://issues.apache.org/jira/browse/FTPSERVER-260?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12665178#action_12665178
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David Latorre commented on FTPSERVER-260:
-----------------------------------------
After checking jakarta-jmeter source code it showed up that JMeter tests
failing were due to their misuse of commons-net ftp. Commons javadoc for
retrieveFileStream states:
To finalize the file transfer you must call completePendingCommand
and check its return value to verify success.
In case you don't call completePendingCommand any subsequent attempt to
retrieve a file will fail - this is why those errors appeared on FTPServer.
Please note that the 'equivalent' retrieveFile doesn't need a call to
completePendingCommand afterwards.
John can you check you are not having the same problem (or a equivalent one) ?
> IOException under high load
> ---------------------------
>
> Key: FTPSERVER-260
> URL: https://issues.apache.org/jira/browse/FTPSERVER-260
> Project: FtpServer
> Issue Type: Bug
> Components: Core
> Affects Versions: 1.0.0-M3, 1.0.0-M4
> Environment: Windows XP SP3
> Reporter: John Hearn
> Attachments: FTP_LOAD_TEST.jmx
>
>
> Under high load I noticed that strange IOExceptions started appearing in the
> server log:
> java.io.IOException: Se ha anulado una conexión establecida por el software
> en su equipo host.
> at sun.nio.ch.SocketDispatcher.read0(Native Method)
> at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:25)
> at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:233)
> at sun.nio.ch.IOUtil.read(IOUtil.java:206)
> at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:207)
> at
> org.apache.mina.transport.socket.nio.NioProcessor.read(NioProcessor.java:175)
> at
> org.apache.mina.transport.socket.nio.NioProcessor.read(NioProcessor.java:42)
> at
> org.apache.mina.core.polling.AbstractPollingIoProcessor.read(AbstractPollingIoProcessor.java:561)
> at
> org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:540)
> at
> org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:532)
> at
> org.apache.mina.core.polling.AbstractPollingIoProcessor.access$400(AbstractPollingIoProcessor.java:58)
> at
> org.apache.mina.core.polling.AbstractPollingIoProcessor$Worker.run(AbstractPollingIoProcessor.java:857)
> at
> org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:51)
> 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)
> (The message is in spanish because I am in Spain. I believe the exception in
> english is "Software caused connection abort" but I may be wrong).
> I couldn't find a related bug so as a test I set up a JMeter test rig with a
> Thread Group and a basic (passive) FTP Request (user admin, RETR README.txt).
> Sure enough when I increase the concurrent threads this error starts
> appearing. In fact the error can appear occacionally with a single thread
> downloading many files consecutively.
> I have tried this with the latest versions of both JMeter and FtpServer and
> the error is the same.
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