This article[1] cites gains in read performance can be achieved when compression is enabled. The more I thought about it, even after reading the DataStax docs about reads[2], I realized I do not understand how compression improves read performance. Can someone provide some details on this?
Is the compression offsets map still used if compression is disabled for a table? If so what is its rate of growth like as compared to the growth of the map when compression is enabled? [1] whats-new-in-cassandra-1-0-compression<http://www.datastax.com/dev/blog/whats-new-in-cassandra-1-0-compression> [2] about reads<http://www.datastax.com/documentation/cassandra/1.2/webhelp/index.html?pagename=docs&version=1.2&file=index#cassandra/dml/dml_about_reads_c.html> Thanks - John
