Re: On Bloom filters and Key Cache

2012-03-21 Thread aaron morton
> Regarding bloom filters, have I understood correctly that they are stored on > Heap, yes. > and that the "Bloom Filter Space Used" reported by 'nodetool cfstats' is an > approximation of the heap space used by bloom filters? Yes, it's the on serialised on disk size. This will be smaller than

On Bloom filters and Key Cache

2012-03-21 Thread Erik Forsberg
Hi! We're currently testing Cassandra with a large number of row keys per node - nodetool cfstats approximated number of keys to something like 700M per node. This seems to have caused a very large heap consumption. After reading http://wiki.apache.org/cassandra/LargeDataSetConsiderations I