HBase persistent BucketCache

You can configure HBase persistent BucketCache to ensure that the HBase cache does not reset by itself when a RegionServer restarts.

The original BucketCache implementation is always volatile. To concretize this, HBase supports configuring the persistent BucketCache functionality. This functionality ensures that the HBase cache does not reset by itself when RegionServer restarts when you deploy it with the ioengine file.