Details
Description
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.
Attachments
Attachments
Issue Links
- duplicates
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HDFS-8361 Choose SSD over DISK in block placement
- Closed