[ https://issues.apache.org/jira/browse/HIVE-3603?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Phabricator updated HIVE-3603: ------------------------------ 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. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira