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https://issues.apache.org/jira/browse/STORM-258?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13947915#comment-13947915
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P. Taylor Goetz commented on STORM-258:
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I'm +1 for upgrading to version 2.4.
The old version can also create conflicts with the dependencies required by the
Hadoop 2.x HDFS and HBase clients, which are commonly used in combination with
Storm.
> Upgrading Apache Commons IO to 2.x
> ----------------------------------
>
> Key: STORM-258
> URL: https://issues.apache.org/jira/browse/STORM-258
> Project: Apache Storm (Incubating)
> Issue Type: Improvement
> Reporter: Daniel Cruver
> Priority: Minor
>
> The version of commons-io is 1.4 in Storm is very old, it was release about 6
> years ago. This can causes issues when deploying applications to Storm that
> are using the newer version of common-io. For example Hadoop is currently
> depending on commons-io-2.1. We currently have issues running our
> application on Storm and we currently are using commons-io 2.4.
> According to the release documentation:
> https://commons.apache.org/proper/commons-io/upgradeto2_0.html
> https://commons.apache.org/proper/commons-io/upgradeto2_2.html
> https://commons.apache.org/proper/commons-io/upgradeto2_4.html
> It only looks like their is some incompatibilities when upgrading to 2.4 but
> these may not apply to Storm.
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