ZanderXu created HDFS-16737:
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Summary: Fix number of threads in
FsDatasetAsyncDiskService#addExecutorForVolume
Key: HDFS-16737
URL: https://issues.apache.org/jira/browse/HDFS-16737
Project: Hadoop HDFS
Issue Type: Bug
Reporter: ZanderXu
Assignee: ZanderXu
The number of threads in FsDatasetAsyncDiskService#addExecutorForVolume is
elastic right now, make it fixed.
Presently the corePoolSize is set to 1 and maximumPoolSize is set to
maxNumThreadsPerVolume, but since the size of Queue is Integer.MAX, the queue
doesn't tend to get full and threads are always confined to 1 irrespective of
maxNumThreadsPerVolume.
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