Hi, we would need more information here (if you did not solve it yet). What is your Cassandra version? Does this 3 node cluster use a Replication Factor of 3? Did you change the bloom_filter_fp_chance recently?
That table has about 16M keys and 140GB of data. > Is that the total value or per node? In any case, we need the data size for the 3 nodes to understand. It might have been a temporary situation, but in this case you would know by now. C*heers, 2016-05-03 18:47 GMT+02:00 Kai Wang <dep...@gmail.com>: > Hi, > > I have a table on 3-node cluster. I notice bloom filter memory usage are > very different on one of the node. For a given table, I checked > CassandraMetricsRegistry$JmxGauge.[table]_BloomFilterOffHeapMemoryUsed.Value. > 2 of 3 nodes show 1.5GB while the other shows 2.5 GB. > > What could be the reason? > > That table is using LCS. > bloom_filter_fp_chance=0.1 > That table has about 16M keys and 140GB of data. > > Thanks. >
