monitoring - Monitor Hadoop Cluster using Collectl -

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i evaluating various system monitoring tools use 1 monitor hadoop cluster. 1 of tools impressed collectl. have been playing around since couple of days.

i struggling find how can aggregate metrics captured collectl when using colmux?

say, have 10 nodes in hadoop cluster each running collectl service. using colmux can see performance metrics of each node in single view (in single , multi-line formats). great!

but if considering aggregate of cpu, io etc on nodes in cluster. want find how cluster whole performing aggregating performance metrics each node corresponding numbers, thereby giving me cluster-level metrics instead of node-level.

any appreciated. thanks!

i had answered on mailing list benefit of not on i'll repeat myself here..

that's cool idea. if understand correctly might see sort of total line @ bottom? can add wish list no promises. think may have solution if don't mind doing little work on own ;) btw - can assume you've installed readkey can change sort columns arrow keys?

if run colmux --noesc, take out of full screen more , print scrolling output. if include "--lines 99999" (or big number) print output remote systems don't miss anything. can pipe output through perl, python, bash, or whatever favorite scripting tool might , totals yourself. whenever see new header fly by, print totals , reset counters 0. add timestamps , maybe make own opensource project. bet others find useful too.

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