I keep seeing this on a new debian 9.1 install. There is only a slight delay during boot, but the following scan works fine. Small but annoying thing. Anything I need to fix?
I tried searching through logs but could not find the event:
:~# dmesg | grep -i lvmet
:~# grep -i lvmet /var/log/*.log
:~# journalctl | grep -i lvmet
Note: The lvm volumes are root, swap, and home and all are not encrypted. Installation iso: https://cdimage.debian.org/debian-cd/current-live/amd64/iso-hybrid/debian-live-9.1.0-amd64-mate.iso
However, I think this should not be a problem. lvmetad is the LVM Metadata Daemon, which is primarily a caching daemon. If you have a lot of disks, or change your logical volumes frequently, the lvmetad can speed up the varioud LVM commands. It is not required for normal usage and ~99% of people can ignore the "failure to connect" message.
I found this informations here: link to debian mailing-list