tomscut created HDFS-16371:
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Summary: Exclude slow disks when choosing volume
Key: HDFS-16371
URL: https://issues.apache.org/jira/browse/HDFS-16371
Project: Hadoop HDFS
Issue Type: Improvement
Reporter: tomscut
Assignee: tomscut
Currently, the datanode can detect slow disks. When choosing volume, we can
exclude these slow disks according to some rules. This will prevents some slow
disks from affecting the throughput of the whole datanode.
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