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Posted to hdfs-issues@hadoop.apache.org by "Xiaobing Zhou (JIRA)" <ji...@apache.org> on 2016/06/24 21:24:16 UTC

[jira] [Created] (HDFS-10577) Support building MiniDFSCluster from JSON

Xiaobing Zhou created HDFS-10577:
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             Summary: Support building MiniDFSCluster from JSON
                 Key: HDFS-10577
                 URL: https://issues.apache.org/jira/browse/HDFS-10577
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Xiaobing Zhou
            Assignee: Xiaobing Zhou


To build an imbalanced MiniDFSCluster, there are much work to do (e.g. TestDiskBalancer#testDiskBalancerEndToEnd). It's even more given tens of data nodes are built, on the other hand, Diskbalancer data model can easily dump and build any kinds of imbalanced cluster (e.g. data-cluster-64node-3disk.json used by TestDiskBalancerCommand#setUp). This proposes to support building MiniDFSCluster from dumped JSON file to make writing tests easy.



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