Re: High-read latency for non-existing rows with LCS and 1.2.5

2013-06-30 Thread aaron morton
> We are using Leveled Compaction with Cassandra 1.2.5. Our sstable size is > 100M. On each node, > we have anywhere from 700+ to 800+ sstables (for all levels). The > bloom_filter_fp_chance is set at 0.000744. The current default bloom_filter_fp_chance is 0.1 for levelled compaction. Reducing t

Re: High-read latency for non-existing rows with LCS and 1.2.5

2013-06-27 Thread sankalp kohli
Try doing request tracing. http://www.datastax.com/dev/blog/tracing-in-cassandra-1-2 On Thu, Jun 27, 2013 at 2:40 PM, Bao Le wrote: > Hi, > > We are using Leveled Compaction with Cassandra 1.2.5. Our sstable size > is 100M. On each node, > we have anywhere from 700+ to 800+ sstables (for al

High-read latency for non-existing rows with LCS and 1.2.5

2013-06-27 Thread Bao Le
Hi,     We are using Leveled Compaction with Cassandra 1.2.5. Our sstable size is 100M. On each node, we have anywhere from 700+ to 800+ sstables (for all levels). The bloom_filter_fp_chance is set at 0.000744.   For read requests that ask for existing row records, the latency is great, mostly