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https://issues.apache.org/jira/browse/HDFS-11037?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiaobing Zhou updated HDFS-11037:
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Fix Version/s: (was: 2.9.0)
> DiskBalancer: redirect stdout/stderr stream for easy tests
> ----------------------------------------------------------
>
> Key: HDFS-11037
> URL: https://issues.apache.org/jira/browse/HDFS-11037
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: balancer & mover
> Reporter: Xiaobing Zhou
> Assignee: Xiaobing Zhou
>
> Currently, disk balancer command maintains PrintStream so that it makes it
> easy to buffer any outputs for test verification. This is not clean approach
> as we might also need to adding other print streams for inputs, outputs and
> errors. The better way is to use System.setErr() or System.setIn(),
> System.setOut() to do stream redirection.
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