udev doesn't support RUN+="socket://..." in udev rules after 178 version.
multipath-tools using libudev instead of file access.
http://upstream-tracker.org/changelogs/libudev/178/changelog.html
remove the RUN+="socket://..." line in /lib/udev/rules.d/95-multipath.rules
then warning message will be gone.
udev doesn't support RUN+="socket://..." in udev rules after 178 version.
multipath-tools using libudev instead of file access.
http:// upstream- tracker. org/changelogs/ libudev/ 178/changelog. html
remove the RUN+="socket://..." line rules.d/ 95-multipath. rules
in /lib/udev/
then warning message will be gone.