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https://issues.apache.org/jira/browse/SPARK-54640?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18043877#comment-18043877
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Wojciech Szlachta commented on SPARK-54640:
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Duplicate of SPARK-51966
I think this only partially fixes the issue as similar can occur in
`python/pyspark/accumulators.py`, where polling function uses `select.select()`
and can fail for file descriptor numbers >=1024.
This was addressed in: https://github.com/apache/spark/pull/53306
> Replace select.select with select.poll in worker
> ------------------------------------------------
>
> Key: SPARK-54640
> URL: https://issues.apache.org/jira/browse/SPARK-54640
> Project: Spark
> Issue Type: Improvement
> Components: PySpark
> Affects Versions: 4.2.0
> Reporter: Tian Gao
> Assignee: Tian Gao
> Priority: Minor
> Labels: pull-request-available
> Fix For: 4.2.0
>
>
> We use select.select in worker.py to communicate with daemon. However,
> select.select has a limit that it can't deal with fd > 1024. This might be an
> issue on a heavy load system. We should use the more modern select.poll to do
> this.
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