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https://issues.apache.org/jira/browse/SPARK-40096?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-40096:
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Assignee: (was: Apache Spark)
> Finalize shuffle merge slow due to connection creation fails
> ------------------------------------------------------------
>
> Key: SPARK-40096
> URL: https://issues.apache.org/jira/browse/SPARK-40096
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 3.3.0
> Reporter: Wan Kun
> Priority: Major
>
> *How to reproduce this issue*
> * Enable push based shuffle
> * Remove some merger nodes before sending finalize RPCs
> * Driver try to connect those merger shuffle services and send finalize RPC
> one by one, each connection creation will timeout after
> SPARK_NETWORK_IO_CONNECTIONCREATIONTIMEOUT_KEY (120s by default)
>
> We can send these RPCs in *shuffleMergeFinalizeScheduler* thread pool and
> handle the connection creation exception
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