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)
