sys.log_error

This view captures system-level errors that are logged during database activities. This view does not capture SQL errors.

Column Name	Data Type	Description
event_id	uuid	Unique event ID for the error.
event_time	timestamptz	Timestamp when the event (error) occurred.
query_id	bigint	Unique query ID, if any was associated with this error.
acknowledged	boolean	Whether the user has acknowledged the event on the SMC System Events screen, where this data is also visible.
error_code	text	Internal error code.
error_msg	text	Text of the error message.

yellowbrick=# select * from sys.log_error where error_code !='system';
               event_id               |         event_time         | query_id | acknowledged |                     error_code                      |                       error_msg                       
--------------------------------------+----------------------------+----------+--------------+-----------------------------------------------------+-------------------------------------------------------
 0194213f-f847-46ec-b97a-cce8b392ea98 | 2017-06-13 17:08:33.58-07  |          | f            | MEMORY|yb77-mgr0.yellowbrick.io|memory|used_percent | used_percent exceeds threshold 50.0 (52.52)
 3571ce6e-dbe0-4aac-988e-a5e4e63d6939 | 2017-06-14 19:58:58.972-07 |          | f            | connection factory                                  | Connection to postgres was lost and has been restored
 fd64a358-4e6a-4efd-9946-d3ed26247717 | 2017-06-14 20:13:38.975-07 |          | f            | connection factory                                  | Connection to postgres was lost and has been restored
(3 rows)