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  1. Hadoop YARN
  2. YARN-6895

[FairScheduler] Preemption reservation may cause regular reservation leaks

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Details

    • Bug
    • Status: Resolved
    • Blocker
    • Resolution: Fixed
    • 3.0.0-alpha4
    • 2.9.0, 3.0.0-beta1
    • fairscheduler
    • None

    Description

      We found a limitation in the implementation of YARN-6432. If the container released is smaller than the preemption request, a node reservation is created that is never deleted.

      Attachments

        1. YARN-6895.000.patch
          13 kB
          Miklos Szegedi
        2. YARN-6895.001.patch
          13 kB
          Miklos Szegedi
        3. YARN-6895.branch-2.000.patch
          13 kB
          Miklos Szegedi
        4. YARN-6895.branch-2.001.patch
          13 kB
          Miklos Szegedi

        Issue Links

        is broken by

        Sub-task - The sub-task of the issue YARN-6432 FairScheduler: Reserve preempted resources for corresponding applications

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

        Bug - A problem which impairs or prevents the functions of the product. YARN-6793 Duplicated reservation in Fair Scheduler preemption

        • Critical - Crashes, loss of data, severe memory leak.
        • Resolved
        relates to

        Improvement - An improvement or enhancement to an existing feature or task. YARN-6925 FSSchedulerNode could be simplified extracting preemption fields into a class

        • Minor - Minor loss of function, or other problem where easy workaround is present.
        • Open

        Improvement - An improvement or enhancement to an existing feature or task. YARN-6926 FSSchedulerNode reservation conflict

        • Major - Major loss of function.
        • Resolved

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            miklos.szegedi@cloudera.com Miklos Szegedi
            miklos.szegedi@cloudera.com Miklos Szegedi
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            Dates

              Created:
              Updated:
              Resolved:

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