Use the Module Health widget to evaluate
the health of your module and identify potential problems. The widget
provides a central place for health information about module topology,
system components, system messaging engines, queues, data sources,
and failed events.
Module Health interacts with the
Module
Browser widget. When you select a module from Module Browser,
the Module Health widget refreshes to display health information for
the selected module.
Note: If administrative security is enabled for
Business Space, you must also enable application security for Module
Browser to work properly.
The Module Health widget displays overall
status for the module. It also groups additional status and health
information for major areas of your module, organizing it into the
following tabs. If there is a problem with one or more resources (for
example, a queue that has reached capacity, or a node agent that is
not running), a warning icon appears at the top of each affected tab.
- Topology tab
- Lists and provides the status of the stand-alone servers, deployment
environments, clusters, and node agents for the module, as well as
the status of each.
- System Components tab
- Lists and provides the status of the Business Process Choreographer,
Common Event Infrastructure (CEI) and Service Component Architecture
(SCA) applications and services used by the module (for example, the
failed event manager, Business Process Choreographer containers, and
the Event Service), as well as Business Space widgets and the Business
Space Manager.
- System Messaging Engine tab
- Lists and provides the status of the system messaging engines
that are configured for the module.
- Queues tab
- Lists and provides the type and status of the system and application
queues configured on the system messaging engines used in the module
(note that this tab does not show queues for custom messaging engines).
The tab uses icons to indicate general queue depth (ranging from empty
to approaching maximum) to help you quickly identify queues that are
reaching maximum capacity. Queues are not shown for stopped messaging
engines.
- Data Sources tab
- Lists and provides the status of the data sources that are used
by the module. Note that the Data Sources tab does not list custom
data sources or support cluster data sources that were not configured
as part of the deployment environment. In addition, the tab shows
the Unavailable status for any data source
whose authentication alias is not set (the widget cannot obtain accurate
information about the data source). If this happens, use the administrative
console to determine the status.
- Failed Events tab
- If the Recovery subsystem is enabled, lists the number of failed
events in the module. This tab provides a total failed event count
as well as individual counts for failed SCA, Business Process Choreographer, Java™ Message Service (JMS), and WebSphere® MQ events.
When a module is running, the Module Health widget shows only those
components, system messaging engines, and data sources that are part
of the module (for example, if the module does not contain business
processes or human tasks, the System Components, System Messaging
Engine, and Data Sources tabs do not list any Business Process Choreographer
or Human Task Manager resources). If the module is stopped, however,
the widget displays all components, system messaging engines, and
data sources on the system, even those not used by the module. To
have an accurate idea of your module's health, ensure that the
module is running before using the Module Health widget.
Except for failed events, each item in each tab has an icon to
help you assess its status at a glance.
Icon |
Status |
Tab or Tabs using icon |
|
Running |
Topology
System
Components
System Messaging Engines
Data Sources
In
addition, the icon is used to indicate overall module health.
|
|
Stopped |
|
Unavailable |
|
Partially started
|
|
Partially stopped
|
|
Loading
This is a transitional
status that appears when data is loading and is replaced by status
when data is available.
|
 |
Queue is empty |
Queues |
 |
Queue contains messages |
 |
Queue is approaching maximum capacity (more
than 90% full) |
 |
Queue is full |
 |
Warning: There is a problem with one
or more resources on the tab
|
All tabs |