Hi, I am in the middle of some load testing on a 1-node Cassandra setup. We are not on very high loads yet. We have recorded the timings taken up by mutator.execute() calls and we see this kind of variation during the test run:
So, 25% of the times, execute() calls come back in 25 milli-seconds, but the longer calls go upto 4 seconds. Can someone please provide some pointers on what and where to focus on in my Hector / Cassandra setup? We are mostly on the default Cassandra configuration at this time - only change is the max connection pool size (CassandraHostConfigurator.maxActive) is changed to 300 from a default of 50. I would also like to add that the time increase is not linear - it starts fast, goes, slow, very slow, and becomes faster again. ------------------------ 25% 29 50% 105 66% 185 70% 208 75% 240 80% 297 90% 510 95% 854 98% 1075 99% 1215 100% 4442 ------------------------ -- Roshan Blog: http://roshandawrani.wordpress.com/ Twitter: @roshandawrani <http://twitter.com/roshandawrani> Skype: roshandawrani
