[HBASE-11627] RegionSplitter's rollingSplit terminated with "/ by zero", and the _balancedSplit file was not deleted properly

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.96.2, 0.98.1
• Fix Version/s: 0.99.0, 0.98.6
• Component/s: Admin, util
• Labels: beginner

Environment

CentOS release 6.4 (Final) x86_64 && hbase-0.98.1-cdh5.1.0

• Hadoop Flags: Reviewed
• Tags: RegionSplitter, UniformSplit,/ by zero
• Assignee: Sean Busbey
• Reporter: louis hust
• Created: 31/Jul/14 13:30
• Updated: 06/Apr/18 17:51
• Resolved: 15/Aug/14 00:49

Description

First create a table

> create 't1', 'f1'

Then split the table with util:

> bin/hbase org.apache.hadoop.hbase.util.RegionSplitter -r -o 2 t1 UniformSplit

Finally get the following error :

12/11/08 19:21:12 DEBUG util.RegionSplitter: All regions have been successfully split!
12/11/08 19:21:12 DEBUG util.RegionSplitter: TOTAL TIME = 30sec
12/11/08 19:21:12 DEBUG util.RegionSplitter: Splits = 0
Exception in thread "main" java.lang.ArithmeticException: / by zero
at org.apache.hadoop.hbase.util.RegionSplitter.rollingSplit(RegionSplitter.java:576)
at org.apache.hadoop.hbase.util.RegionSplitter.main(RegionSplitter.java:349)