Matthew Whelan created SPARK-5357:
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Summary: Upgrade from commons-codec 1.5
Key: SPARK-5357
URL: https://issues.apache.org/jira/browse/SPARK-5357
Project: Spark
Issue Type: Bug
Components: Spark Core
Affects Versions: 1.2.0, 1.1.0
Reporter: Matthew Whelan
Spark uses commons-codec 1.5, which has a race condition in Base64. That race
was introduced in commons-codec 1.4 and resolved in 1.7. The current version
of commons-codec is 1.10.
Code that runs in Workers and assumes that Base64 is thread-safe will break
because spark is using a non-thread-safe version. See CODEC-96
In addition, the spark.files.userClassPathFirst mechanism is currently broken,
(bug to come), so there isn't a viable work around for this issue.
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