Erik Krogen created SPARK-35672:
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Summary: Spark fails to launch executors with very large user
classpath lists on YARN
Key: SPARK-35672
URL: https://issues.apache.org/jira/browse/SPARK-35672
Project: Spark
Issue Type: Bug
Components: Spark Core, YARN
Affects Versions: 3.1.2
Environment: Linux RHEL7
Spark 3.1.1
Reporter: Erik Krogen
When running Spark on YARN, the {{user-class-path}} argument to
{{CoarseGrainedExecutorBackend}} is used to pass a list of user JAR URIs to
executor processes. The argument is specified once for each JAR, and the URIs
are fully-qualified, so the paths can be quite long. With large user JAR lists
(say 1000+), this can result in system-level argument length limits being
exceeded, typically manifesting as the error message:
{code}
/bin/bash: Argument list too long
{code}
A [Google
search|https://www.google.com/search?q=spark%20%22%2Fbin%2Fbash%3A%20argument%20list%20too%20long%22&oq=spark%20%22%2Fbin%2Fbash%3A%20argument%20list%20too%20long%22]
indicates that this is not a theoretical problem and afflicts real users,
including ours. This issue was originally observed on Spark 2.3, but has been
confirmed to exist in the master branch as well.
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