[jira] Commented: (HADOOP-2616) hbase not spliting when the total size of region reaches max region size * 1.5

["stack (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-2616?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12560047#action_12560047 ] 

stack commented on HADOOP-2616:
-------------------------------

Jim makes the point that the config. is actually the size of any one HStore HStoreFile.  Reading the description, I can see that it could be interpreted as region size.  Lets fix that at least as part of this issue.

> hbase not spliting when the total size of region reaches max region size * 1.5
> ------------------------------------------------------------------------------
>
>                 Key: HADOOP-2616
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2616
>             Project: Hadoop
>          Issue Type: Bug
>          Components: contrib/hbase
>            Reporter: Billy Pearson
>            Priority: Minor
>             Fix For: 0.17.0
>
>
> right now a region may get larger then the max size set in the conf 
> HRegion.needsSplit
> Checks the largest column to see if its larger then max region size * 1.5 and then desides to split or not 
> But  if we have more then one column the region could be vary large
> example
> Say we have 10 columns all about the same size lets say 40MB and the max file size is 64MB we would not split even thought the region size is 400MB well over the 96MB needed to trip a split to happen.

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