It’s sloppy language in the doc. It is indeed a “ratio” – scroll down to the 
example.

See:
http://www.datastax.com/documentation/cassandra/2.0/cassandra/tools/toolsCFstats.html

-- Jack Krupansky

From: Kevin Burton 
Sent: Sunday, June 29, 2014 12:33 AM
To: user@cassandra.apache.org 
Subject: SSTable compression ratio… percentage or 0.0 -> 1.0???

I can't find documentation on this...

SSTable Compression Ratio: 0.31685324166491696


One entry on the datastax site says that it's the "percentage"

but is it 0.31% or 31% ?

I think it's 31% … but I don't see where this is specified..

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