ade created HDFS-9667:
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Summary: StorageType: SSD precede over DISK
Key: HDFS-9667
URL: https://issues.apache.org/jira/browse/HDFS-9667
Project: Hadoop HDFS
Issue Type: Bug
Components: namenode
Affects Versions: 2.7.0, 2.6.0
Reporter: ade
Assignee: ade
Fix For: 2.6.0
We enabled the heterogeneous storage in our cluster and there are only ~50% of
datanode & regionserver hosts with SSD. We set hfile with ONE_SSD storagepolicy
but we found block's all replica are DISK often even local host with SSD
storage. The block placement do not choose SSD first to place replica.
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