``mon_warn_on_osd_down_out_interval_zero`` to false::
ceph config global mon mon_warn_on_osd_down_out_interval_zero false
+
+DASHBOARD_DEBUG
+_______________
+
+The Dashboard debug mode is enabled. This means, if there is an error
+while processing a REST API request, the HTTP error response contains
+a Python traceback. This behaviour should be disabled in production
+environments because such a traceback might contain and expose sensible
+information.
+
+The debug mode can be disabled with::
+
+ ceph dashboard debug disable