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https://issues.apache.org/jira/browse/HIVE-3603?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13553809#comment-13553809
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Phabricator commented on HIVE-3603:
-----------------------------------
navis has commented on the revision "HIVE-3603 [jira] Enable client-side
caching for scans on HBase".
INLINE COMMENTS
hbase-handler/src/test/queries/positive/hbase_scan_params.q:7 It makes MR
task and I don't want add more test time. Furthermore, hbase returns rows
always in deterministic way(ordered by row key)
REVISION DETAIL
https://reviews.facebook.net/D7761
To: JIRA, navis
Cc: zhenxiao
> 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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