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https://issues.apache.org/jira/browse/SPARK-55401?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kent Yao resolved SPARK-55401.
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Fix Version/s: 4.2.0
Resolution: Fixed
Issue resolved by pull request 54183
[https://github.com/apache/spark/pull/54183]
> Add retry logic and timeout handling to pyspark install download
> ----------------------------------------------------------------
>
> Key: SPARK-55401
> URL: https://issues.apache.org/jira/browse/SPARK-55401
> Project: Spark
> Issue Type: Improvement
> Components: PySpark
> Affects Versions: 4.2.0
> Reporter: Kent Yao
> Assignee: Kent Yao
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.2.0
>
>
> The test_install_spark test in pyspark.tests.test_install_spark is flaky in
> CI due to network issues when downloading Spark distributions from Apache
> mirrors.
> Current issues in pyspark/install.py:
> 1. No connection/read timeout on urllib.request.urlopen() - downloads can
> hang indefinitely
> 2. No retry logic on download failures - a single transient network error
> causes complete failure
> 3. Mirror failover only happens on exception, not on timeout/stall
> Proposed fix:
> - Add configurable timeout to urlopen() calls (both for mirror resolution and
> download)
> - Add retry logic with exponential backoff for download attempts
> - Improve error reporting for debugging CI failures
> This affects the pyspark-install CI job which downloads ~400MB from Apache
> mirrors and frequently fails due to network instability.
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