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https://issues.apache.org/jira/browse/SPARK-5357?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen updated SPARK-5357:
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Priority: Minor (was: Major)
Assignee: Matt Whelan
> 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: 1.1.0, 1.2.0
> Reporter: Matthew Whelan
> Assignee: Matt Whelan
> Priority: Minor
> Fix For: 1.3.0
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> 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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