16.6.3.1. Logging Management Commands
The following management commands are related to the cluster
log:
-
CLUSTERLOG ON
Turns the cluster log on.
-
CLUSTERLOG OFF
Turns the cluster log off.
-
CLUSTERLOG INFO
Provides information about cluster log settings.
-
node_id CLUSTERLOG
category=threshold
Logs category events with
priority less than or equal to
threshold in the cluster log.
-
CLUSTERLOG FILTER
severity_level
Toggles cluster logging of events of the specified
severity_level.
The following table describes the default setting (for all
data nodes) of the cluster log category threshold. If an event
has a priority with a value lower than or equal to the
priority threshold, it is reported in the cluster log.
Note that events are reported per data node, and that the
threshold can be set to different values on different nodes.
Thresholds are used to filter events within each category. For
example, a STARTUP event with a priority of
3 is not logged unless the threshold for
STARTUP is changed to 3 or lower. Only
events with priority 3 or lower are sent if the threshold is
3.
The following table shows the event severity levels.
(Note: These correspond to
Unix syslog levels, except for
LOG_EMERG and
LOG_NOTICE, which are not used or mapped.)
Event severity levels can be turned on or off (using
CLUSTERLOG FILTER — see above). If a
severity level is turned on, then all events with a priority
less than or equal to the category thresholds are logged. If
the severity level is turned off then no events belonging to
that severity level are logged.
