2011/3/8 Paul Pak <p...@yellowseo.com> > Hi Ruslan, > > Is it possible for you to tell us the details on what you have done which > measurably helped your situation, so we can start a "best practices" doc on > growing cassandra systems? > > So far, I see that under load, cassandra is rarely "ready" to take heavy > load in it's default configuration and a number of steps need to be done > with the configuration of cassandra for proper sizing of memtables, > flushing, jvm. Unfortunately, it's very difficult to gauge what the proper > or appropriate settings are for a given workload. > > It would be helpful if you could share, what happened in the default > config, what steps you did that helped the situation, h Tow much each step > helped your situation. That way we can start a checklist of things to > address as we grow in load. > > It will be great if you provide options that need tuning from best throput, i know only 3:
in cassandra.yaml binary_memtable_throughput_in_mb And jvm options: -Xms with -Xmx - for heap size -Xmn - for minor young generation GC
