File: //usr/lib/netdata/conf.d/health.d/file_descriptors.conf
# you can disable an alarm notification by setting the 'to' line to: silent
template: system_file_descriptors_utilization
on: system.file_nr_utilization
class: Utilization
type: System
component: Processes
lookup: max -1m unaligned
units: %
every: 1m
crit: $this > 90
delay: down 15m multiplier 1.5 max 1h
summary: System open file descriptors utilization
info: System-wide utilization of open files
to: sysadmin
template: apps_group_file_descriptors_utilization
on: app.fds_open_limit
class: Utilization
type: System
component: Process
host labels: _os=linux
lookup: max -10s unaligned
units: %
every: 10s
warn: $this > (($status >= $WARNING) ? (85) : (95))
delay: down 15m multiplier 1.5 max 1h
summary: App group ${label:app_group} file descriptors utilization
info: Open files percentage against the processes limits, among all PIDs in application group
to: sysadmin