Checkmk Werk 7938: Unify status table columns in NEB and CMC.

ID: 7938 Title: Unify status table columns in NEB and CMC. Component: Livestatus Level: 1 Class: New feature Version: 1.7.0i1 <ul> <li>Added <tt>average_latency_cmk</tt> and <tt>average_latency_real_time</tt> columns, always containing zero.</li> <li>Added <tt>average_latency_generic</tt> column, containing the average latency of all active host/service checks.</li> <li>Added <tt>core_pid</tt> column as an alias for <tt>nagios_pid</tt>.</li> <li>Added <tt>has_event_handlers</tt> column.</li> <li>Added <tt>helper_usage_generic</tt>, <tt>helper_usage_cmk</tt>, and <tt>helper_usage_real_time</tt> columns, always containing zero.</li> <li>Added <tt>livestatus_overflows</tt> and <tt>livestatus_overflows_rate</tt> columns. The NEB queues accepted connections, so we never have overflows here. Nevertheless, we provide these columns for consistency with CMC, and they always contain zero.</li> <li>Added <tt>livestatus_usage</tt> column.</li> <li>Added <tt>num_queued_alerts</tt> column, always containing zero.</li> <li>Added <tt>num_queued_notifications</tt> column, always containing zero.</li> <li>Removed <tt>livecheck_overflows</tt> and <tt>livecheck_overflows_rate</tt> columns from both NEB and CMC. They were unused for more than 6 years, they never really worked well, and simply contain zero for ages. To reduce confusion, those columns are gone now.</li> </ul>