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From Vidhyashankar Venkataraman <vidhy...@yahoo-inc.com>
Subject Questions on Region split..
Date Thu, 17 Jun 2010 17:37:32 GMT
I am repeating the mail that I sent yesterday:  Hope the questions were non-trivial enough.

Data from a parent region is copied on to its child regions when compactions are requested..
Is the compaction referred to here major or minor? (I have turned major compactions off in
my table, but I still see some child regions each having one big store file which possibly
means they were major compacted from their parent regions:

And I do see debug messages of the form:
2010-06-16 20:57:52,840 DEBUG org.apache.hadoop.hbase.regionserver.Store:  loaded /hbase/DocDB/90955749/bigColumn/6896592738209003301.1155422223,
isReference=true, sequence id=1276651030300, length=2147588214, majorCompaction=true)

I am trying to understand what happens to splits when major compactions are disabled..

Would be glad if someone helps..
Thank you
Vidhya




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