[jira] [Created] (HDFS-13265) MiniDFSCluster should set reasonable defaults to reduce resource consumption

["Erik Krogen (JIRA)" <ji...@apache.org>]

Erik Krogen created HDFS-13265:
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             Summary: MiniDFSCluster should set reasonable defaults to reduce resource consumption
                 Key: HDFS-13265
                 URL: https://issues.apache.org/jira/browse/HDFS-13265
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: datanode, namenode, test
            Reporter: Erik Krogen


MiniDFSCluster takes its defaults from {{DFSConfigKeys}} defaults, but many of these are not suitable for a unit test environment. For example, the default handler thread count of 10 is definitely more than necessary for (almost?) any unit test. We should set reasonable, lower defaults unless a test specifically requires more.



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