hbase-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Jonathan Gray (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-1183) New MR splitting algorithm and other new features need a way to split a key range in N chunks
Date Tue, 03 Feb 2009 22:07:59 GMT
New MR splitting algorithm and other new features need a way to split a key range in N chunks
---------------------------------------------------------------------------------------------

                 Key: HBASE-1183
                 URL: https://issues.apache.org/jira/browse/HBASE-1183
             Project: Hadoop HBase
          Issue Type: Improvement
          Components: util
            Reporter: Jonathan Gray
            Assignee: Jonathan Gray
            Priority: Minor
             Fix For: 0.19.1, 0.20.0


For HBASE-1172 and other functionality coming soon, we need to be able to take a [start,stop)
range and divide it into chunks.

For example, we have 10 regions but want to run 30 maps.  We need to divide each region into
three key ranges for the start/stop of each scanner.

Implementing using java.math.BigInteger

Will also include a couple additional helpers in Bytes to make life easy.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message