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https://issues.apache.org/jira/browse/HDFS-11923?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chen Liang updated HDFS-11923:
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Attachment: HDFS-11923.001.patch
> Stress test of DFSNetworkTopology
> ---------------------------------
>
> Key: HDFS-11923
> URL: https://issues.apache.org/jira/browse/HDFS-11923
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: namenode
> Reporter: Chen Liang
> Assignee: Chen Liang
> Attachments: HDFS-11923.001.patch
>
>
> I wrote a stress test with {{DFSNetworkTopology}} to verify its correctness
> under huge number of datanode changes e.g., data node insert/delete, storage
> addition/removal etc. The goal is to show that the topology maintains the
> correct counters all time. The test is written that, unless manually
> terminated, it will keep randomly performing the operations nonstop. (and
> because of this, the test is ignored in the patch).
> My local test lasted 40 min before I stopped it, it involved more than one
> million datanode changes, and no error happened. We believe this should be
> sufficient to show the correctness of {{DFSNetworkTopology}}
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