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https://issues.apache.org/jira/browse/HIVE-3603?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Navis updated HIVE-3603:
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Status: Patch Available (was: Open)
> 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
> Assignee: Navis
> Priority: Minor
> Attachments: HIVE-3603.D7761.1.patch
>
>
> 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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