Erik Krogen created HDFS-13262:
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Summary: Services should not start threads unnecessarily
Key: HDFS-13262
URL: https://issues.apache.org/jira/browse/HDFS-13262
Project: Hadoop HDFS
Issue Type: Improvement
Components: datanode, namenode, test
Reporter: Erik Krogen
There are a number of services in HDFS that start a thread even if they are
disabled. Some services which may not be strictly necessary do not have a way
to be disabled. This is particularly bad for the unit tests, in which the
number of threads spawned by concurrent MiniDFSCluster-based tests can grow to
be very large (e.g. see HDFS-12711)
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