Also Attached is a flamed graph generated from a thread dump. On Mon, Feb 27, 2017 at 2:32 AM, Kant Kodali <k...@peernova.com> wrote:
> Hi, > > Attached are the stats of my Cassandra node running on a 4-core CPU. I am > using sjk-plus tool for the first time so what are the things I should > watched out for in my attached screenshot? I can see the CPU is almost > maxed out but should I say that is because of compaction or > shared-worker-pool threads (which btw, I dont know what they are doing > perhaps I need to take threadump)? Also what is alloc for each thread? > > I have a insert heavy workload (almost like an ingest running against > cassandra cluster) and in my case all writes are LWT. > > The current throughput is 1500 writes/sec where each write is about 1KB. > How can I tune something for a higher throughput? Any pointers or > suggestions would help. > > Thanks much, > kant >
