ramkrishna.s.vasudevan created HBASE-21874:
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Summary: Bucket cache on Persistent memory
Key: HBASE-21874
URL: https://issues.apache.org/jira/browse/HBASE-21874
Project: HBase
Issue Type: New Feature
Components: BucketCache
Affects Versions: 3.0.0
Reporter: ramkrishna.s.vasudevan
Fix For: 3.0.0
Non volatile persistent memory devices are byte addressable like DRAM (for eg.
Intel DCPMM). Bucket cache implementation can take advantage of this new memory
type and can make use of the existing offheap data structures to serve data
directly from this memory area without having to bring the data to onheap.
The patch is a new IOEngine implementation that works with the persistent
memory.
Note : Here we don't make use of the persistence nature of the device and just
make use of the big memory it provides.
Performance numbers to follow.
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