Monitor Reference

This document describes the AppLogic Monitor interface. The Monitor provides a visual interface for monitoring performance and resource usage statistics of running AppLogic applications. The user interface of the Monitor is highly interactive and is accessible with a web browser.

Overview

Adding Monitoring to your application

In order to monitor you application you need to add a MON appliance in it.

Any application can be monitored using the MON appliance, just connect the mon terminal of the appliances you want to monitor to the mon terminal of the MON appliance ( You may use balloon connections as shown on the screenshot above to avoid multiple connection lines in the editor). You need to restart your application after connecting the appliances to MON for the changes to take effect.

Accessing the Monitor Interface

There are two ways of accessing the Monitor interface:

• From the Monitor icon of your application in the Editor. Note: To access to Monitor this way, your MON appliance needs to be called mon (this is the default).

• Through a gateway connected to the web terminal of the MON (you need to configure the user and password properties in your MON appliance, see MON data sheet for details)

Using the Monitor Interface

Views

Graphs

Add graph

Each graph can display up to 12 counters. Select a counter to display by choosing:

• Appliace - the name of the appliance you are monitoring
• Entity - the counter group that the desired counter is (e.g. Filesystem, CPU Summary, Memory statistics)
• Counters - the name of the counter to add

You can add a counter to the graph by double clicking the name in the Counters select box or by selecting the name and clicking the right arrow between Counters and Selected Counter. To delete a counter, select it from the Selected Counter box and click the left arrow or double click the counter name in Selected Counter.

Each counter has its own color, you can change the color by selecting the counter in Selected Counter and select a color from the color dropdown on the right.

The actual look of the graph as it will be shown in your view can be seen in the Preview section. Each change you make to the graph is immediately propagated to the Preview.

In the Graph Preferences section you can specify the following properties:

• size - specifies the size of the graphs. Its a good practice to use medium or large sized graph when displaying more than one counter per graph.
• pace - specify the pace at which the counter is updated. The larger the pace, the more history you see (and the less accurate the graph is)
• alarm - specify minimum and maximum values for the counters. When a counter is outside the given limits an alarm is displayed at the upper left cornet of the graph
• scale - specify the scale of the graph; leave blank for auto-scaling (the scale will change if with the displayed values)
• legend - enable graph legend - shows current value for each counter as well as its name (it can be customized). The legend can be shown in 1, 2, 4 and 8 colums depending on the graph size
• timeline (checkbox) - shows the timeline along the horizontal axis
• scale (checkbox) - shows the scale along the vertical axis

Edit graph

• To specify a title for the graph click on its Title bar and will turn into an input field where you can enter the graph title. You can edit that later by clicking the title bar.
• To edit the graph legend, click on a counter name in the legend and it will turn into an input field where you can enter/edit counter name.

Move graph

Pause graph

Collapse graph

Lights out

-- NetClime - 08 May 2007