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https://issues.apache.org/jira/browse/SPARK-33041?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Russell Spitzer updated SPARK-33041:
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Affects Version/s: 3.0.1
> Better error messages when PySpark Java Gateway Crashes
> -------------------------------------------------------
>
> Key: SPARK-33041
> URL: https://issues.apache.org/jira/browse/SPARK-33041
> Project: Spark
> Issue Type: Improvement
> Components: PySpark
> Affects Versions: 2.4.7, 3.0.1
> Reporter: Russell Spitzer
> Priority: Major
>
> Currently the startup works by opening the Gateway process and waiting until
> the the process has written the conn_info_file. Once the conn_file is written
> it proceeds to attempt to connect to the port.
> This connection can succeed and the process can start normally, but if the
> gateway process dies or is killed the error that the user ends up getting is
> a confusing "connection_failed" style error like
> {code}
> Traceback (most recent call last):
> File
> "/usr/lib/spark-packages/spark2.4.4/python/lib/py4j-0.10.7-src.zip/py4j/java_gateway.py",
> line 929, in _get_connection
> connection = self.deque.pop()
> IndexError: pop from an empty deque
> {code}
> Since we have a handle on the py4j process, we should probably check whether
> it has terminated before surfacing any exceptions like this.
> CC [~holden]
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