-If at least one rotation occurred, only the tracing buffers and the current
-trace chunks are cleared. Previous trace chunks are not cleared.
+NOTE: The nloption:--disallow-clear option and the
+`LTTNG_RELAYD_DISALLOW_CLEAR` environment variable of
+man:lttng-relayd(8) can disable remote clearing operations. If LTTng
+sends tracing data over the network for 'SESSION' (or for any tracing
+session with the option:--all option) to a relay daemon configured as
+such, `lttng clear` fails.