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From Radim Kolar <...@sendmail.cz>
Subject new configurable bloom filters - coming soon
Date Tue, 27 Dec 2011 23:31:40 GMT
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


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