Lars Hofhansl created HBASE-13109: ------------------------------------- Summary: Use scanner look ahead for timeranges as well Key: HBASE-13109 URL: https://issues.apache.org/jira/browse/HBASE-13109 Project: HBase Issue Type: Bug Reporter: Lars Hofhansl Priority: Minor
This is a continuation of HBASE-9778. We've seen a scenario of a very slow scan over a region using a timerange that happens to fall after the ts of any Cell in the region. Turns out we spend a lot of time seeking. Tested with a 5 column table, and the scan is 5x faster when the timerange falls before all Cells' ts. We can use the lookahead hint introduced in HBASE-9778 to do opportunistic SKIPing before we actually seek. -- This message was sent by Atlassian JIRA (v6.3.4#6332)