Details
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Improvement
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Status: Patch Available
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Major
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Resolution: Unresolved
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2.6.0, 2.7.0
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None
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None
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hdfs-client, heterogeneous storage
Description
We want to improve random read performance of HDFS for HBase, so enabled the heterogeneous storage in our cluster. But there are only ~50% of datanode & regionserver hosts with SSD. we can set hfile with only ONE_SSD not ALL_SSD storagepolicy and the regionserver on none-SSD host can only read the local disk replica . So we developed this feature in hdfs client to read even remote SSD/RAM prior to local disk replica.
Attachments
Attachments
Issue Links
- is related to
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HBASE-14061 Support CF-level Storage Policy
- Closed
1.
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make new chooseDataNode policy work in more operation like seek, fetch | Patch Available | Unassigned |