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https://issues.apache.org/jira/browse/FLINK-26370?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17500619#comment-17500619
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Gyula Fora commented on FLINK-26370:
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Thanks [~kelemensanyi] , in that case I suggest we go with configuring the
threadpool size now. We should expose a config option for this and document it
to make it easy
> Make Flink cluster communication asynchronous
> ---------------------------------------------
>
> Key: FLINK-26370
> URL: https://issues.apache.org/jira/browse/FLINK-26370
> Project: Flink
> Issue Type: Sub-task
> Components: Kubernetes Operator
> Reporter: Gyula Fora
> Assignee: Sandor Kelemen
> Priority: Major
>
> In the current architecture calls to the flink clusters (through the rest
> client) are made synchronously from the reconcile loop.
> These calls often take a long time due to various (compeltely normal) reasons:
> - Cluster is not ready -> long call + timeoutexception
> - Operation takes a long time -> cancel/savepoint operations are often
> expected to take seconds/minutes
> Both the observer and reconciler components make these calls.
> We should come up with a way to avoid making these sync calls from the main
> loop while still preserving the logic of the operator.
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