Munin: Graphs for Processes priority are empty -

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i have new ubuntu server (ubuntu 16.04.1 lts, server version without gui, running virtual server in remote server farm), , installed munin on (munin , munin-node). did not change standard installation, @ moment use 30 plugins part of standard installation. 28 of them worked fine beginning.

the plugin "http load time of page" showed empty graph, found out package time missing. installed with

apt install time

and restarted munin-node. plugin fixed.

but there still problem »processes priority« (plugin »proc_pri«). graphs of plugin (by day, week, ...) empty, , have idea start search reason of problem.

please can give me hints fix problem? or isolate problem.

check output of ps -eo stat command. munin plugin proc_pri simple shell script process output of ps , may fail after output format changing. upd: count lines symbols ">", "n" , "l" in ps -eo stat command output. therefore if command dont show full list of processes or use non-bsd output format, plugin not count processes correctly.


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