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  1. Hadoop YARN
  2. YARN-445

Ability to signal containers

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Details

    • Task
    • Status: Open
    • Major
    • Resolution: Unresolved
    • None
    • None
    • nodemanager

    Description

      It would be nice if an ApplicationMaster could send signals to contaniers such as SIGQUIT, SIGUSR1, etc.

      For example, in order to replicate the jstack-on-task-timeout feature implemented by MAPREDUCE-1119 in Hadoop 0.21 the NodeManager needs an interface for sending SIGQUIT to a container. For that specific feature we could implement it as an additional field in the StopContainerRequest. However that would not address other potential features like the ability for an AM to trigger jstacks on arbitrary tasks without killing them. The latter feature would be a very useful debugging tool for users who do not have shell access to the nodes.

      Attachments

        1. YARN-445-signal-container-via-rm.patch
          131 kB
          Ming Ma
        2. MRTasks.png
          39 kB
          Ming Ma
        3. MRJob.png
          36 kB
          Ming Ma
        4. YARNContainers.png
          32 kB
          Ming Ma
        5. YARN-445--n4.patch
          81 kB
          Andrey Klochkov
        6. YARN-445--n3.patch
          80 kB
          Andrey Klochkov
        7. YARN-445--n2.patch
          80 kB
          Andrey Klochkov
        8. YARN-445.patch
          79 kB
          Andrey Klochkov

        Issue Links

          is depended upon by

          New Feature - A new feature of the product, which has yet to be developed. YARN-896 Roll up for long-lived services in YARN

          • Major - Major loss of function.
          • Open

          Task - A task that needs to be done. MAPREDUCE-5783 web UI update to allow people to request thread dump of a running task.

          • Major - Major loss of function.
          • Open

          Task - A task that needs to be done. MAPREDUCE-5784 CLI update so that people can send signal to a specific task

          • Major - Major loss of function.
          • Open
          is duplicated by

          New Feature - A new feature of the product, which has yet to be developed. YARN-1619 Add cli to kill yarn container

          • Major - Major loss of function.
          • Closed
          is required by

          Improvement - An improvement or enhancement to an existing feature or task. MAPREDUCE-5044 Have AM trigger jstack on task attempts that timeout before killing them

          • Major - Major loss of function.
          • Resolved
          relates to

          Sub-task - The sub-task of the issue YARN-4131 Add API and CLI to kill container on given containerId

          • Major - Major loss of function.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. HADOOP-9752 Latest Ubuntu (13.04) /bin/kill parameter for process group requires a 'double dash kill -0 -- -<pid>

          • Major - Major loss of function.
          • Patch Available

          Improvement - An improvement or enhancement to an existing feature or task. MAPREDUCE-5387 Implement Signal.TERM on Windows

          • Major - Major loss of function.
          • Open

          Improvement - An improvement or enhancement to an existing feature or task. MAPREDUCE-5044 Have AM trigger jstack on task attempts that timeout before killing them

          • Major - Major loss of function.
          • Resolved

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              Unassigned Unassigned
              jlowe Jason Darrell Lowe
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              Dates

                Created:
                Updated: