How do I get that statistic?
On Wed, Feb 19, 2014 at 10:34 PM, Yogi Nerella <ynerella...@gmail.com>wrote: > Could be your -Xmn800M is too low, that is why it is trying garbage > collecting very frequently. > Do you have any statistics on how much memory it is collecting on every > cycle? > > > > On Wed, Feb 19, 2014 at 8:47 AM, Sourabh Agrawal > <iitr.sour...@gmail.com>wrote: > >> Below is CPU usage from top. I don't see any steal. Idle time is pretty >> low. >> >> Cpu(s): 83.3%us, 14.5%sy, 0.0%ni, 0.5%id, 0.0%wa, 0.0%hi, 1.7%si, >> 0.0%st >> >> Any other pointers? >> >> >> On Wed, Feb 19, 2014 at 8:34 PM, Nate McCall <n...@thelastpickle.com>wrote: >> >>> You may be seeing steal from another tenant on the VM. This article has >>> a good explanation: >>> >>> http://blog.scoutapp.com/articles/2013/07/25/understanding-cpu-steal-time-when-should-you-be-worried >>> >>> In short, kill the instance and launch a new one. Depending on your >>> latency requirements and operational ability to respond, you may want to >>> consider paying for dedicated instances. >>> >>> >>> On Wed, Feb 19, 2014 at 2:30 AM, Sourabh Agrawal <iitr.sour...@gmail.com >>> > wrote: >>> >>>> Hi, >>>> >>>> I am running cassandra 2.0.3 cluster on 4 AWS nodes. memory arguments >>>> are the following for each node : >>>> -Xms8G -Xmx8G -Xmn800M >>>> >>>> I am experiencing consistent high loads on one of the nodes. Each node >>>> is getting approximately equal number of writes. I tried to have a look at >>>> the logs and seems like CMS GC is running every 1-2 seconds. >>>> >>>> Any pointers on how to debug this? >>>> >>>> -- >>>> Sourabh Agrawal >>>> Bangalore >>>> +91 9945657973 >>>> >>> >>> >>> >>> -- >>> ----------------- >>> Nate McCall >>> Austin, TX >>> @zznate >>> >>> Co-Founder & Sr. Technical Consultant >>> Apache Cassandra Consulting >>> http://www.thelastpickle.com >>> >> >> >> >> -- >> Sourabh Agrawal >> Bangalore >> +91 9945657973 >> > > -- Sourabh Agrawal Bangalore +91 9945657973
