Thanks for helping , it helped me a lot But how can i set up Ganglia i mean i have two machines Should i install ganglia in machine 1 which i run on it nimbus or on worker machine ?
On Mon, Apr 25, 2016 at 12:29 AM, Manu Zhang <[email protected]> wrote: > Hi Sam, > > Generally, Ganglia gives usage of CPU, Memory, Disk and Network of the > whole cluster while visual VM shows CPU and Memory metrics per JVM. > > If the topology is the only running job on your cluster, Ganglia will let > you know whether your topology has fully utilized the resources of the > cluster and where the bottleneck is. For example, is the CPU abnormally > high for very simple logics ? is the GbE network already full ? > > With visual VM, you might be able to pinpoint the problem. It shows the > CPU condition of each thread at runtime, whether it's running, sleeping or > blocking and the thread can be dumped. Plus, you can also do sampling or > profiling for CPU / memory which can help you to find the hot spots in your > code. > > Hope this helps. > > Regards, > Manu > > On Sun, Apr 24, 2016 at 3:20 PM sam mohel <[email protected]> wrote: > >> Can anybody help ? >> >> On Saturday, April 23, 2016, sam mohel <[email protected]> wrote: >> >> > I submitted topology and want to measure performance of CPU by like >> > getting graph >> > >> > Can I use ganglia ? or visual VM can do it ? >> > >> > Iam using storm -0.9.6 and it has already visulaization for spout and >> > bolts . how can I understand it well ? I don't understand numbers that >> > appeared in the graph . and how can I use it in evaluation of toplogy >> > >> > Thanks for any help >> > >> >
