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  1. Hadoop YARN
  2. YARN-3611

Support Docker Containers In LinuxContainerExecutor

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    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: yarn
    • Labels:


      Support Docker Containers In LinuxContainerExecutor

      LinuxContainerExecutor provides useful functionality today with respect to localization, cgroups based resource management and isolation for CPU, network, disk etc. as well as security with a well-defined mechanism to execute privileged operations using the container-executor utility. Bringing docker support to LinuxContainerExecutor lets us use all of this functionality when running docker containers under YARN, while not requiring users and admins to configure and use a different ContainerExecutor.

      There are several aspects here that need to be worked through :

      • Mechanism(s) to let clients request docker-specific functionality - we could initially implement this via environment variables without impacting the client API.
      • Security - both docker daemon as well as application
      • Docker image localization
      • Running a docker container via container-executor as a specified user
      • “Isolate” the docker container in terms of CPU/network/disk/etc
      • Communicating with and/or signaling the running container (ensure correct pid handling)
      • Figure out workarounds for certain performance-sensitive scenarios like HDFS short-circuit reads
      • All of these need to be achieved without changing the current behavior of LinuxContainerExecutor


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            • Assignee:
              sidharta-s Sidharta Seethana
              sidharta-s Sidharta Seethana


              • Created:

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