Greetings, I am evaluating various system monitoring tools to use one to monitor my hadoop cluster. One of the tools I am impressed by is collectl. I have been playing around with it since a couple of days.
I am struggling to find how can we aggregate the metrics captured by collectl when using colmux? Say, I have 10 nodes in my hadoop cluster each running collectl as a service. Using colmux I can see the performance metrics of each node in a single view (in single and multi-line formats). Great! But what if I am considering aggregate of CPU, IO etc on all the nodes in the cluster. That is I want to find how my cluster as a whole is performing by aggregating the performance metrics from each node into corresponding numbers, thereby giving me cluster-level metrics instead of node-level. Any help is greatly appreciated. Regards, -Saurabh -- Regards, Saurabh S. Agrawal Memoir <http://saurabhska.wordpress.com/>
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