The flock command may be installed elsewhere, depending on the
system. Let the PATH search figure that out.
http://tracker.ceph.com/issues/13975Fixes: #13975
Signed-off-by: Loic Dachary <loic@dachary.org>
When activating a device, ceph-disk trigger restarts the ceph-disk
systemd service. Two consecutive udev add on the same device will
restart the ceph-disk systemd service and the second one may kill the
first one, leaving the device half activated.
The ceph-disk systemd service is instructed to not kill an existing
process when restarting. The second run waits (via flock) for the second
one to complete before running so that they do not overlap.
http://tracker.ceph.com/issues/13160Fixes: #13160
Signed-off-by: Loic Dachary <ldachary@redhat.com>
