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From "Tony Wu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-9282) Make data directory count and storage raw capacity related tests FsDataset-agnostic
Date Thu, 22 Oct 2015 00:12:27 GMT
Tony Wu created HDFS-9282:
-----------------------------

             Summary: Make data directory count and storage raw capacity related tests FsDataset-agnostic
                 Key: HDFS-9282
                 URL: https://issues.apache.org/jira/browse/HDFS-9282
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: HDFS, test
    Affects Versions: 2.7.1
            Reporter: Tony Wu
            Assignee: Tony Wu
            Priority: Minor


DFSMiniCluster and several tests have hard coded assumption of the underlying storage having
2 data directories (volumes). As HDFS-9188 pointed out, with new FsDataset implementations,
these hard coded assumption about number of data directories and raw capacities of storage
may change as well.

We need to extend FsDatasetTestUtils to provide:
* Number of data directories of underlying storage per DataNode
* Raw storage capacity of underlying storage per DataNode.
* Have MiniDFSCluster automatically pick up the correct values.



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