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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