Tony Wu created HDFS-9282:
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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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