On Sun, Oct 16, 2011 at 2:20 AM, Radim Kolar <h...@sendmail.cz> wrote: > Dne 10.10.2011 18:53, Mohit Anchlia napsal(a): >> >> Does it mean you are not updating a row or deleting them? > > yes. i have 350m rows and only about 100k of them are updated. >> >> Can you look at JMX values of >> >> BloomFilter* ? > > i could not find this in jconsole mbeans or in jmx over http in cassandra > 1.0
Look in jconcole -> org.apache.cassandra.db -> ColumnFamilies > > I believe if you want to keep disk seeks to 1 ssTable you will need to > compact more often. > > cassandra have max 2 disk seeks per 1 sstable read. one seek for index, > second seek for data. If bloom filters are working fine, in my case there is > no need to access more than 1 sstable. > unless your updates to a row are spread accross multiple uncompacted ssTables.
