Guard dbus from overloading #191
Description
I am getting errors like
dbus-daemon: [system] The maximum number of pending replies for ":1.249585" (uid=989 pid=2263361 comm="/usr/local/bin/systemd_exporter --systemd.collecto") has been reached (max_replies_per_connection=128)
on some systems, especially when they already have a high load and when all additional metrics are activated.
Adding a simple semaphore to the go func that runs c.collectUnit seems to solve it in my case but maybe I’m missing a setting here that already fixes this?