John Zhuge created HDFS-9728:
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Summary: TestDFSShell should not create MiniDFSCluster in each
test case
Key: HDFS-9728
URL: https://issues.apache.org/jira/browse/HDFS-9728
Project: Hadoop HDFS
Issue Type: Improvement
Reporter: John Zhuge
Assignee: John Zhuge
Priority: Critical
Create the MiniDFSCluster in @BeforeClass method, and shut it down in
@AfterClass method. This fix will speed up unit testing of HDFS component.
When a test case needs 2 clusters, use the default one, and create a second one
in the test case. If there are too many test cases that need 2 clusters, move
them to a different test file.
Only when a custom cluster specific to that test case is needed, create the
cluster in the test case.
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