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  1. JBoss Enterprise Application Platform
  2. JBEAP-8805

[GSS] (7.0.z) XNIO-286 - QueuedNioTcpServer does not response if accepts fails

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Details

    • Bug
    • Resolution: Won't Do
    • Major
    • None
    • 7.0.5.CR1
    • Remoting
    • None
    • +

    Description

      Scenario:
      1. EAP 7 started in standalone mode
      2. ulimit set: ulimit -n 500
      3. test application deployed (attached long-running-servlet.war servlet doing Thread.sleep(duration))
      4. HTTP server benchmarking tool run with parameters

      ab -n 1000 -c 1000 -k http://127.0.0.1:8080/long-running-servlet/HeavyProcessing?duration=2500

      Benchmarking tool produced output:

      This is ApacheBench, Version 2.3 <$Revision: 1748469 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
 
Benchmarking 127.0.0.1 (be patient)
socket: Too many open files (24)

      Server logged ERROR:

      ERROR [org.xnio.nio.tcp.server] (default Accept) Exception accepting request, closing server channel TCP server (NIO) <10541d74>: java.io.IOException: Too many open files
	at sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method)
	at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:422)
	at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:250)
	at org.xnio.nio.QueuedNioTcpServer.handleReady(QueuedNioTcpServer.java:477)
	at org.xnio.nio.QueuedNioTcpServerHandle.handleReady(QueuedNioTcpServerHandle.java:38)
	at org.xnio.nio.WorkerThread.run(WorkerThread.java:567)

      5. Run: 'curl http://127.0.0.1:8080' , server does not respond anymore

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        Issue Links

          clones

          Bug - A problem that impairs or prevents the functions of the product. JBEAP-8804 [GSS](7.1.z) XNIO-286 - QueuedNioTcpServer does not response if accepts fails

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Closed
          incorporates

          Bug - A problem that impairs or prevents the functions of the product. XNIO-286 QueuedNioTcpServer does not respond if accept fails

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Resolved
          is caused by

          Bug - A problem that impairs or prevents the functions of the product. JBEAP-8081 (7.0.z) XNIO-279 - QueuedNioTcpServer can go into an infinite loop if accept fails

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Verified

          Activity

            People

              rhn-engineering-lgao Lin Gao
              rhn-engineering-lgao Lin Gao
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              Dates

                Created:
                Updated:
                Resolved: