[jira] [Created] (YARN-5886) Dynamically prioritize execution of opportunistic containers (NM queue reordering)

["Konstantinos Karanasos (JIRA)" <ji...@apache.org>]

Konstantinos Karanasos created YARN-5886:
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             Summary: Dynamically prioritize execution of opportunistic containers (NM queue reordering)
                 Key: YARN-5886
                 URL: https://issues.apache.org/jira/browse/YARN-5886
             Project: Hadoop YARN
          Issue Type: Sub-task
            Reporter: Konstantinos Karanasos


Currently the {{ContainerScheduler}} in the NM picks the next queued opportunistic container to be executed in a FIFO manner. That is, we first execute containers that arrived first at the NM.

This JIRA proposes to add pluggable queue reordering strategies at the NM that will dynamically determine which opportunistic container will be executed next.
For example, we can choose to prioritize containers that belong to jobs which are closer to completion, or containers that are short-running (if such information is available).



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