demo, it will be in cassandra 1.0.7
standard cassa bloom filter
-rw-r--r-- 1 root wheel 19307376721 Dec 27 20:06 sipdb-hc-4634-Data.db
-rw-r--r-- 1 root wheel 63 Dec 27 20:06
sipdb-hc-4634-Digest.sha1
-rw-r--r-- 1 root wheel 770714896 Dec 27 20:06 sipdb-hc-4634-Filter.db
-rw-r--r-- 1 root wheel 2445750860 Dec 27 20:06 sipdb-hc-4634-Index.db
-rw-r--r-- 1 root wheel 4336 Dec 27 20:06
sipdb-hc-4634-Statistics.db
1% error ratio bloom filter (30% smaller). hbase default
-rw-r--r-- 1 root wheel 19307376721 Dec 27 23:38 sipdb-hc-4635-Data.db
-rw-r--r-- 1 root wheel 63 Dec 27 23:38
sipdb-hc-4635-Digest.sha1
-rw-r--r-- 1 root wheel 513809936 Dec 27 23:38 sipdb-hc-4635-Filter.db
-rw-r--r-- 1 root wheel 2445750860 Dec 27 23:38 sipdb-hc-4635-Index.db
-rw-r--r-- 1 root wheel 4336 Dec 27 23:38
sipdb-hc-4635-Statistics.db
