This document explains how to use the Event Viewer section of Opsview Monitor,
including how to filter the event graph and table, and also how to export the
events table to a downloadable format.
Overview An EVENT is when a Host, Service Check, Business Service or Component changes state, e.g. if a host changes state from 'UP' to 'DOWN. When this happens, an EVENT is generated which logs the date/time and other details. If the Host returns to 'UP' 20 minutes later, another event will be generated to display this.
These events can be viewed within the 'Events Viewer'. The Events Viewer
section can be accessed by clicking on the ‘Events Viewer’ tile within the
‘Monitoring’ tab of the overlay menu, as shown below:
Once loaded, you will
be able to view all of the events that have occurred within the Opsview Monitor
By default, the Event
Viewer is filtered to display events that have occurred within the past six hours.
The Event Viewer is
split into two, linked sections:
The Event Graph will display in a bar graph
format all the events that occurred within a certain time period. These bars
will group the events together, i.e. for a six-hour time period the bars
represent a 10-minute time period, for a one-day time period the bars represent
thirty minutes. The bars reflect the number of events that have happened in that time period, NOT the state of the system at that point in time. For example, if nothing happened between 3:00 pm and 4:00 pm, there would be no events - not a big green bar.
Each bar is split
into up to four separate parts:
CRITICAL Service Checks and DOWN Hosts
Yellow: WARNING Service Checks
OK Service Checks and UP Hosts
Purple: UNKNOWN Service Checks and UNREACHABLE Hosts
To view the count of each
section, i.e. ‘How many “Reds” at this point in time..”, hovering your
mouse over will display a count for each section in the selected bar (as shown above).
The Event Table will display the detail of
the bars displayed, with one event per table row.
This data is linked
to the Event Graph, meaning if there are four events displayed in the Event
Table, then there will only be four events visible in the Event Graph.
The Event Table has
pagination controls along the bottom, allowing you to change how many events
are displayed per page (“Page Size:”); you can also to step through the different
pages using the page controls located in the bottom left of the above
Finally, there is a
check box labelled ‘Auto refresh:’. If checked, new events will appear at the top
of the table (if on “Page: 1”) and these new events will be shaded in a yellow
color to highlight that these are newly-added events. The yellow shading will
disappear when the next auto refresh occurs.