Can you help please ? On Monday, April 25, 2016, sam mohel <sammoh...@gmail.com> wrote:
> 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 <owenzhang1...@gmail.com > <javascript:_e(%7B%7D,'cvml','owenzhang1...@gmail.com');>> 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 <sammoh...@gmail.com >> <javascript:_e(%7B%7D,'cvml','sammoh...@gmail.com');>> wrote: >> >>> Can anybody help ? >>> >>> On Saturday, April 23, 2016, sam mohel <sammoh...@gmail.com >>> <javascript:_e(%7B%7D,'cvml','sammoh...@gmail.com');>> 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 >>> > >>> >> >
