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From "B. Todd Burruss" <bto...@gmail.com>
Subject leveled compaction and tombstoned data
Date Thu, 08 Nov 2012 18:12:27 GMT
we are having the problem where we have huge SSTABLEs with tombstoned data
in them that is not being compacted soon enough (because size tiered
compaction requires, by default, 4 like sized SSTABLEs).  this is using
more disk space than we anticipated.

we are very write heavy compared to reads, and we delete the data after N
number of days (depends on the column family, but N is around 7 days)

my question is would leveled compaction help to get rid of the tombstoned
data faster than size tiered, and therefore reduce the disk space usage?

thx

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