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https://issues.apache.org/jira/browse/FLINK-25648?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yang Wang updated FLINK-25648:
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Fix Version/s: 1.16.0
> Redundant to query deployment when creating task manager pods
> -------------------------------------------------------------
>
> Key: FLINK-25648
> URL: https://issues.apache.org/jira/browse/FLINK-25648
> Project: Flink
> Issue Type: Improvement
> Components: Deployment / Kubernetes
> Affects Versions: 1.14.2
> Reporter: Yuan Huang
> Assignee: Yuan Huang
> Priority: Critical
> Labels: pull-request-available
> Fix For: 1.16.0
>
> Attachments: trace.png
>
>
> When creating Task Manager (TM) Pod, the fabric client needs the deployment
> to set owner reference for the TM pod. However, repeating to querying the
> deployment each time is unnecessary which will waste a lot of time.
> [https://github.com/apache/flink/blob/36ff71f5ff63a140acc634dd1d98b2bb47a76ba5/flink-kubernetes/src/main/java/org/apache/flink/kubernetes/kubeclient/Fabric8FlinkKubeClient.java]
> (line 128-162)
>
> According to the measured result by
> [https://arthas.aliyun.com/doc/trace.html#id1]) below: Quering deployment may
> cost more than 50% (203/349 ms) of time.
> Can we save the deployment reference in memory instead of querying it each
> time to save pod creating time?
> !trace.png!
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