Processes plugin fails to parse output of /proc/[pid]/stat if command contains '-' or '('

[acherunilam]

https://github.com/influxdata/telegraf/blob/master/plugins/inputs/system/processes.go#L151 is how the Processes plugin parses the output of /proc/[pid]/stat.

$ sudo tail -f /var/log/telegraf/telegraf.log
2016/04/05 11:42:38 processes: Unknown state [ - ] in file /proc/377073/stat
2016/04/05 11:42:38 processes: Unknown state [ ( ] in file /proc/376490/stat
2016/04/05 11:42:40 Gathered metrics, (10s interval), from 11 inputs in 2.19493059s

$ sudo cat /proc/377073/stat /proc/376490/stat
377073 (cpanellogd - sl) S 1 377072 375534 0 -1 4202560 338436 274264341 0 1107 124 401 3207359 159570 38 18 1 0 377307744 21835776 417 18446744073709551615 4194304 4198540 140724696323552 140724696322472 139912685945296 0 0 128 20995 18446744071579506811 0 0 17 17 0 0 110 0 0 0 0 0 0 0 377073 0 0 0
376490 (cpsrvd (SSL) - ) S 1 376490 375534 0 -1 4202752 46501576 5925121575 66 132435 13148 69570 9319189 2678793 20 0 1 0 377306098 107266048 3540 536870912 4194304 10290876 140727794619072 140727794618200 139820002159065 0 0 128 29187 18446744071580840381 0 0 17 0 0 0 346 0 0 0 0 0 0 0 376490 0 0 0

$ sudo ps aux | egrep "cpanellogd|cpsrvd"
root      376490  0.0  0.0 104752 14160 ?        S    Mar21  13:47 cpsrvd (SSL) - waiting f --llu=1458644101 --listen=10,11,4,5,6,7,8,9
root      377073  0.0  0.0  21324  1668 ?        SN   Mar21   0:05 cpanellogd - sleeping for logs

[sparrc]

what OS are you on?

[sparrc]

it's actually the spaces that are the problem, I didn't realize those were possible. I will need to change the way we parse the stat file.