On Wed, Jul 27, 2011 at 7:40 AM, lebron james <lebron.m...@gmail.com> wrote:
> Why when i give jvm 1 GB heap size and try launch cassandra with 37GB > database, cassandra start loading database, but after memory usage full, > they fall with OutOfMemory Exception. Cassandra can`t work with low memory? > or she critical need more RAM if database grows? > here is link to download cassndra dist 0.8.2 with my 37GB database > http://213.186.117.181/apache-cassandra-0.8.2-bin.zip > > Cassandra's bloom filters must fit in memory. In addition each index file is sampled (check the index_interval in cassandra.yaml) # The Index Interval determines how large the sampling of row keys # is for a given SSTable. The larger the sampling, the more effective # the index is at the cost of space. index_interval: 128 You can adjust index_interval to load large datasets with not-so-large memory JVM, but 1GB heap for 37 GB database is not the best way to go. How much ram does your system have?
