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  1. Undertow
  2. UNDERTOW-239

Linux Pipe Leak

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Details

    • Bug
    • Resolution: Won't Do
    • Major
    • None
    • 1.0.8.Final
    • Core
    • None
    • Hide

      After deploying the sample WAR attached, invoke:

      wget "http://localhost:1099/leak-test/test-service/getBytes?size=2450000" -O /dev/null

      multiple times.

      Running:

      lsof -p <jboss-pid> | grep pipe | wc -l

      will show growth. For smaller byte sizes, we do not see the leak.

      Show
      After deploying the sample WAR attached, invoke: wget "http://localhost:1099/leak-test/test-service/getBytes?size=2450000" -O /dev/null multiple times. Running: lsof -p <jboss-pid> | grep pipe | wc -l will show growth. For smaller byte sizes, we do not see the leak.

    Description

      Hello,

      We have identified a leak that we believe is coming from undertow. Using the Wildlfy 8.1CR, we are able to cause the system to leak system pipes (and java.nio.channels.spi.AbstractSelector$1). This bug causes the system to run out of file handles and the server to stop servicing clients.

      Attachments

        1. CallStack.png
          CallStack.png
          83 kB
        2. leak-test.tgz
          2 kB

        Issue Links

          is related to

          Feature Request - Feature requests from customers and/or users WFLY-3337 Server should limit number of workers based on available FD's

          • 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

          Activity

            People

              sdouglas1@redhat.com Stuart Douglas
              thammoud_jira Tarek Hammoud (Inactive)
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              Dates

                Created:
                Updated:
                Resolved: