Thanks for help On Tuesday, April 26, 2016, Stephen Powis <[email protected]> wrote:
> There's no real "right" answer to this, it depends on your hardware, > utilization of your hardware, and all sorts of other kinds of parameters. > > I've never used Ganglia myself, but my naive understanding is you have an > agent that runs on every node you want to monitor. Then the agents "report > back" metrics to a central server which provides the view into the metrics > of all your nodes (ie all the graphs and what not). > > So if it was me, I'd install the ganglia agent on every node I want to > monitor. Where to install the central server? You'll have to read up the > documentation on Ganglia and figure out where that fits best within the > servers you own. You'd find the best info about Ganglia on their website > docs, or their mailing list. > > On Mon, Apr 25, 2016 at 8:35 PM, sam mohel <[email protected] > <javascript:_e(%7B%7D,'cvml','[email protected]');>> wrote: > >> Can you help please ? >> >> >> On Monday, April 25, 2016, sam mohel <[email protected] >> <javascript:_e(%7B%7D,'cvml','[email protected]');>> 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 <[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 >>>>> > >>>>> >>>> >>> >
