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https://issues.apache.org/jira/browse/HADOOP-14498?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16148479#comment-16148479
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Allen Wittenauer commented on HADOOP-14498:
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I think this fixes the immediate problem, but I'm wondering if we shouldn't
purge the usage of hadoop_add_entry and hadoop_verify_entry while we're here...
especially since it is only used by the HOT code anyway.
> HADOOP_OPTIONAL_TOOLS not parsed correctly
> ------------------------------------------
>
> Key: HADOOP-14498
> URL: https://issues.apache.org/jira/browse/HADOOP-14498
> Project: Hadoop Common
> Issue Type: Bug
> Components: build
> Affects Versions: 3.0.0-alpha1
> Reporter: Mingliang Liu
> Assignee: Sean Mackrory
> Attachments: HADOOP-14498.001.patch, HADOOP-14498.002.patch,
> HADOOP-14498.003.patch
>
>
> # This will make hadoop-azure not show up in the hadoop classpath, though
> both hadoop-aws and hadoop-azure-datalake are in the
> classpath.{code:title=hadoop-env.sh}
> export HADOOP_OPTIONAL_TOOLS="hadoop-azure,hadoop-aws,hadoop-azure-datalake"
> {code}
> # And if we put only hadoop-azure and hadoop-aws, both of them are shown in
> the classpath.
> {code:title=hadoop-env.sh}
> export HADOOP_OPTIONAL_TOOLS="hadoop-azure,hadoop-aws"
> {code}
> This makes me guess that, while parsing the {{HADOOP_OPTIONAL_TOOLS}}, we
> make some assumptions that hadoop tool modules have a single "-" in names,
> and the _hadoop-azure-datalake_ overrides the _hadoop-azure_. Or any other
> assumptions about the {{${project.artifactId\}}}?
> Ping [~aw].
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