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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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Phabricator updated HIVE-3603:
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Attachment: HIVE-3603.D7761.1.patch
navis requested code review of "HIVE-3603 [jira] Enable client-side caching for
scans on HBase".
Reviewers: JIRA
DPAL-1955 Enable client-side caching for scans on HBase
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.
TEST PLAN
EMPTY
REVISION DETAIL
https://reviews.facebook.net/D7761
AFFECTED FILES
hbase-handler/src/java/org/apache/hadoop/hive/hbase/HBaseSerDe.java
hbase-handler/src/java/org/apache/hadoop/hive/hbase/HBaseStorageHandler.java
hbase-handler/src/java/org/apache/hadoop/hive/hbase/HiveHBaseTableInputFormat.java
hbase-handler/src/test/queries/positive/hbase_scan_params.q
hbase-handler/src/test/results/positive/hbase_scan_params.q.out
MANAGE HERALD DIFFERENTIAL RULES
https://reviews.facebook.net/herald/view/differential/
WHY DID I GET THIS EMAIL?
https://reviews.facebook.net/herald/transcript/18699/
To: JIRA, navis
> 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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