Karthik Ranganathan created HIVE-3603:
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Summary: Enable client-side caching for scans on HBase
Key: HIVE-3603
URL: https://issues.apache.org/jira/browse/HIVE-3603
Project: Hive
Issue Type: Improvement
Reporter: Karthik Ranganathan
Priority: Minor
HBaseHandler sets up a TableInputFormat MR job against HBase to read data in.
The underlying implementation (in HBaseHandler.java) makes an RPC call per
row-key, which makes it very inefficient. Need to specify a client side cache
size on the scan.
Note that HBase currently only supports num-rows based caching (no way to
specify a memory limit). Created HBASE-6770 to address this.
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