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Jonathan Gray commented on HBASE-1183: -------------------------------------- Wow, really got me thinking back. I honestly don't remember exactly why. We convert them to BigInteger so we can do: (stop - start) / numsplits = interval Something related to signed/unsigned? Reading the code it does seem okay. Good thing I didn't write a unit test. Are you seeing that it's broken in some way? I can spend a little more time looking at it if necessary. > 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: HBase > Issue Type: Improvement > Components: util > Reporter: Jonathan Gray > Assignee: Jonathan Gray > Priority: Minor > Fix For: 0.20.0 > > Attachments: hbase-1183-v1.patch, hbase-1183-v2.patch, > hbase-1183-v3.patch, hbase-1183-v4.patch > > > 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. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira