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-M4, 1.0.0-M3
Environment: Windows XP SP3
Reporter: John Hearn
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.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
