Foglight for Java EE Technologies 5.9.7.5 - Application Servers User Guide

Examining the structure of Application Servers services

The Application Servers service category includes the All .NET Systems service, and the All Java Systems service, each of which in turn can be comprised of one or more services. For example, the All Java Systems service could include a WebLogic service that monitors all WebLogic domains, a WebSphere server that monitors all web applications, an OracleAS service that monitors all OracleAS cluster topologies, a JBoss service that monitors all JBoss partitions, a Tomcat service that monitors all Tomcat servers, and a Java EE Web applications service that monitors all Java EE web applications. Each service has components or sub-components that are monitored by a rule.

A component has its own alarms and Service Level Compliance (availability) status. The status of each component rolls up to provide an overall Service Level Compliance and alarm status for a service. From the Service Builder dashboard, you can explore how a service is built. You may want to examine this composition to see which components are contributing to the poor health.

To examine how a service is built:

On the navigation panel, under Dashboards, click Services > Service Builder.

The Service Builder dashboard appears.

Expand the Application Servers service category. The grouping underneath the service category appears.

Figure 6. Expanded service category, including services for WebLogic_10, JBoss, and OracleAS.

To see more detailed information:

Select the All Java Systems service.

Figure 7. The All Java Systems Summary appears.

The breakdown of the Java systems service is displayed with alarm information. From here you can investigate the Service Level Agreements (SLAs), examine the monitored components, and acknowledge and clear alarms.

Under the Explore heading, click Drilldown: Application Servers Monitor to view the details of the service in the Application Servers Monitor dashboard.

For more information about Services and Service Level Agreements, see Monitoring Your Services in the Foglight User Guide.

Monitoring Systems

The Systems and Servers views of the Application Servers Monitor dashboard are common to Foglight for Microsoft .NET, Foglight for Java EE Technologies, and Foglight for JMX. This section describes the features and functionality of these two views, and the related Java Virtual Machine (JVM) view.

The Systems tile provides a high-level overview of the behavior of your systems. Use this view to review groups of monitored domains, cells, cluster topologies, and partitions. From here you can quickly see the number of servers and applications being monitored, their health, availability, and more.

Select an object in the system summary table to view the components that belong to that system, such as servers and applications. When you hover over a component, a dwell displays all of its sub-components and any alarms associated with that system.

From this view, you can perform the following actions:

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Review the number of monitored systems in your infrastructure

•

Search for system types

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Identify the system aggregate state

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Review system servers total and unavailable counts

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Review system applications total and unavailable counts

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Collect Traces (from the Action panel > General tab)

To view the systems:

On the navigation panel, under Dashboards, click Application Servers > Monitor. The Application Servers Monitor dashboard opens.

Click the Systems tile.

Figure 8. Click the Systems tile to see the Systems view.

The Systems view displays the summary of all the monitored systems.

Systems

The Systems table lists all the systems running in your monitored environment. This table can also list the total number of, and availability for, monitored servers and applications in your infrastructure, depending on the columns shown.

Use this table to quickly review the overall system health, and to determine if an error is occurring at the server or application level. Colored icons indicate the health status of the components: green check marks or upward arrows indicate a healthy state, while the red X or downward error indicates an alarm condition. A yellow caution triangle (not shown) indicates that the system is in a warning state and may become unhealthy.

Select a system from the list to populate the System details view on the right with data about the servers, applications, domains, cells, cluster topologies, or partitions included in the selected system.

For example, in the image above, the health of the WebLogic_10 system is poor (

), because one server and six applications are unavailable (

). Click the status icon for an affected component (system, server, or application) to obtain information about the source. For more information, see Reviewing the health of your systems.

System details

The system details view displays details of the system selected in the System table. Depending on the type of system selected, this view may be divided into two tables: the Servers table (upper right), and the Applications table (lower right). For some systems, the Applications table is not applicable and is therefore hidden.

To review the properties for the selected system, click Properties (located at the top right corner of the Systems Details view). The information available in this popup depends on the type of system selected.

Servers table

The Servers table lists the monitored servers for the selected domain, and provides you with at-a-glance health information for the server and any monitored components. Click any entry to access a number of different drill-down views associated with the components.

The columns in this table are dependent on the cartridges you have installed and the components you are monitoring. For example, for a system monitored by the JMX Agent, the Servers table includes MBeans and JVM status columns, and the Applications table is not available.

Applications table