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https://issues.apache.org/jira/browse/FLINK-30962?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated FLINK-30962:
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Labels: pull-request-available (was: )
> Improve error messaging when launching py4j gateway server
> ----------------------------------------------------------
>
> Key: FLINK-30962
> URL: https://issues.apache.org/jira/browse/FLINK-30962
> Project: Flink
> Issue Type: Improvement
> Components: API / Python
> Reporter: Juntao Hu
> Priority: Minor
> Labels: pull-request-available
> Fix For: 1.18.0
>
>
> In some cases, e.g. JVM_ARGS does not match the java executable version that
> pyflink uses when launching py4j gateway server, there'll be only a general
> message "Exception: Java gateway process exited before sending its port
> number". It would be easier to investigate the error cause if we expose
> stderr from java process.
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