This is an alternative take on the embedded inotify collector:
https://github.com/prometheus/node_exporter/pull/988
The proposed embedded collector was not accepted for inclusion because
it was not possible for a single unprivileged node_exporter process to
detect inotify resource utilisation in other user domains.
This text collector works around the problem by giving the operator a
choice between the following:
- Run only the text collector as root to gain visibility over all
processes on the system.
- Run one or more instances of the text collector as an unprivileged
user to gain visibility over subsets of the system.
In either case, the data generated by this collector can be useful when
hunting down inotify instance leaks -- and when confirming the
resolution of such leaks.
Signed-off-by: Saj Goonatilleke <sg@redu.cx>
