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Jeongdae Kim commented on PHOENIX-3486: --------------------------------------- failed tests are not related to this patch. could anyone give me reviews for this patch? > RoundRobinResultIterator doesn't work correctly because of setting Scan's > cache size inappropriately in PhoenixInputForamt > -------------------------------------------------------------------------------------------------------------------------- > > Key: PHOENIX-3486 > URL: https://issues.apache.org/jira/browse/PHOENIX-3486 > Project: Phoenix > Issue Type: Bug > Reporter: Jeongdae Kim > Assignee: Jeongdae Kim > Labels: HivePhoenix > Attachments: PHOENIX-3486.patch > > > RoundRobinResultIterator uses "hbase.client.scanner.caching" to fill caches > in parallel for all scans, but by setting Scan.setCaching() in > PhoenixInputForrmat(phoenix-hive), RoundRobinResultIterator doesn't work > correctly, because if Scan have cache size by setCaching(), HBase uses cache > size from Scan.getCaching() to fill cache, not > "hbase.client.scanner.caching", and RoundRobinResultIterator scans the table > in parallel to fill caches every "hbase.client.scanner.caching", resulting in > unintended parallel scan operation, this causes scan performance degradation. -- This message was sent by Atlassian JIRA (v6.3.15#6346)