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From Monish r <monishs...@gmail.com>
Subject Clarification regarding major compaction logic
Date Sun, 23 Sep 2012 13:59:21 GMT
Hi guys,

i would like to clarify the following regarding Major Compaction

1) When TTL is set for a column family and major compaction is triggered by

- Does it act on the region only when *time since last major compaction is
> TTL.*

2) Does major compaction go through the index of a region to find out that
there is data to be acted upon and then start the rewriting  ( or ) does it
rewrite without any pre checks about the data  inside the region ?

3) If major compaction for a region results in a empty region , does the
empty region get deleted or left as such ?


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