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https://issues.apache.org/jira/browse/SPARK-8059?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14570073#comment-14570073
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Apache Spark commented on SPARK-8059:
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User 'vanzin' has created a pull request for this issue:
https://github.com/apache/spark/pull/6600
> Reduce latency between executor requests and RM heartbeat
> ---------------------------------------------------------
>
> Key: SPARK-8059
> URL: https://issues.apache.org/jira/browse/SPARK-8059
> Project: Spark
> Issue Type: Improvement
> Components: YARN
> Affects Versions: 1.4.0
> Reporter: Marcelo Vanzin
> Priority: Minor
>
> This is a follow up to SPARK-7533. On top of the changes done as part of that
> issue, we could reduce allocation latency by waking up the allocation thread
> when the driver send new requests.
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