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https://issues.apache.org/jira/browse/HDDS-1525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16851585#comment-16851585
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Xiaoyu Yao commented on HDDS-1525:
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Attach a POC patch on top of ozone-0.4.0 that works with hadoop 2.7.6.
A simplified non-secure docker-compose for mr that runs
wordcount/teragen/terasort/teravalidate successfully.
> Mapreduce failure when using Hadoop 2.7.5
> -----------------------------------------
>
> Key: HDDS-1525
> URL: https://issues.apache.org/jira/browse/HDDS-1525
> Project: Hadoop Distributed Data Store
> Issue Type: Bug
> Components: Ozone Filesystem
> Affects Versions: 0.4.0
> Reporter: Sammi Chen
> Priority: Major
> Attachments: HDDS-1525.poc.patch, teragen.log
>
>
> Integrate Ozone(0.4 branch) with Hadoop 2.7.5, "hdfs dfs -ls /" can pass,
> while teragen failed.
> When add -verbose:class to java options, it shows that class KeyProvider is
> loaded twice by different classloader while it is only loaded once when
> execute "hdfs dfs -ls /"
> All jars under share/ozone/lib are added into hadoop classpath except ozone
> file system current lib jar.
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