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https://issues.apache.org/jira/browse/SPARK-55888?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated SPARK-55888:
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Labels: pull-request-available (was: )
> Parallel pod creation for Kubernetes executor allocation
> --------------------------------------------------------
>
> Key: SPARK-55888
> URL: https://issues.apache.org/jira/browse/SPARK-55888
> Project: Spark
> Issue Type: Improvement
> Components: Kubernetes
> Affects Versions: 4.1.1
> Reporter: Dejiu Lu
> Priority: Major
> Labels: pull-request-available
>
> Right now, `ExecutorPodsAllocator` creates pods one by one — it sends a
> create request to the K8s API, waits for the response, then moves on to the
> next one. This works fine for small jobs, but becomes a real bottleneck when
> you need thousands of executors.
> In our production environment, it takes 3412s to request 10,000 executors in
> Kubernetes mode, but only 34s in YARN mode. We achieved a significant speedup
> by changing the executor request from serial to parallel.
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