You can use the InterChange Server Component Management view in System Manager to monitor the IBM WebSphere InterChange Server system and to get informational messages for all component status changes in the system. You also can start, stop, pause, and shut down InterChange Server components and change component properties from this view. For instructions on starting, stopping, and pausing components or on changing component properties, see Administering components of the system.
The following section describes how to work in System Manager to connect to an InterChange Server instance and to view component statistics from the InterChange Server Component Management view. To use the InterChange Server Component Management view in System Manager, you must first connect to an InterChange Server instance.
To use the InterChange Server Component Management view of System Manager, you must first connect to an InterChange Server instance.
Perform the following steps to connect to an InterChange Server instance:
When a connection is made, the light on the InterChange Server instance icon changes from red to green, and any objects that have been deployed to that server appear in folders beneath the server.
The InterChange Server Component Management view of System Manager allows you to monitor statistics for the IBM WebSphere InterChange Server environment to help you better manage the IBM WebSphere InterChange Server system. Statistics can be viewed for InterChange Server, collaboration objects, and connectors.
By watching and becoming familiar with your system's normal operating statistics, when problems occur, you can use the monitors to identify and isolate problems, and pinpoint problems in flow processing.
Monitoring your system's statistics can help you to optimally configure your system's resources. The statistics windows show currently configured parameters and provide graphs that track resources during flow processing. You can easily see if your system resources are used efficiently or if they need to be adjusted. The following topics describe the information in the Server Statistics window, the Collaboration Object Statistics window, and the Connector Statistics window:
"Collaboration object statistics"
To check InterChange Server statistics, right-click the InterChange Server instance in the InterChange Server Component Management view, then select Statistics. The server statistics display in the upper-right quadrant of System Manager.
The information in the System Statistics window is covered in the following topics:
Using the Database connections section of the Statistics window for InterChange Server, you can find out how many database connections the InterChange Server system's connection cache is currently using and the peak amount used since the server was booted. This can help you tune InterChange Server's interaction with the underlying Database server. By using the parameters in the InterchangeSystem.cfg file and the respective underlying database server's .cfg files, you can configure the optimal number of connections.
Using this section of the System Statistics window, look for the connection pool that is consuming the most number of connections. This can help you configure InterChange Server to meet the maximum database connections constraint or increase the maximum number of connections for this pool.
The database parameters contained in the DB_CONNECTIVITY section of the InterchangeSystem.cfg file govern the overall interactions between InterChange Server and the database management system (DBMS).
For information about these parameters, see the System Installation Guide for UNIX or for Windows.
The Database connections area shows statistics for:
The area below the cache statistics lists the system and dynamic connection pools. The system pools are REPOSITORY, EVENTS_MANAGEMENT, FLOW_MONITORING, and TRANSACTIONS. The dynamic pool is the Relationship pool. The following details for each of these pools are maintained:
The Depth of Message Queues area of the Statistics window for InterChange Server shows a list of all the subscription queues in the configured queue manager. The Depth of Message Queues area shows statistics for:
To check collaboration object statistics, right-click the collaboration object whose statistics you want to view, then select Statistics. The statistics for that collaboration object appear in the upper-right quadrant of System Manager.
Check the Failed flows statistic for an increase in the normal failure rate. A failure can be caused by several situations, including the unavailability of a connector, corrupt data, and so forth. This number should be kept as low as possible, since some user intervention is needed to resubmit the failures. This count is retained when the collaboration is paused, and it is reset when the collaboration is stopped.
The top section of the window provides statistics about the running collaboration object. You can quickly see when the collaboration object was started, how long it has been running, the number of access calls from Web-based servlets, the number of successful and failed flows, and the total number of flows that have been processed.
The Maximum number of concurrent events reflects the maximum number of concurrent processes of event-triggered flows. For detailed information about concurrent flows, see the System Implementation Guide.
Use this area to search for flows taking longer than the specified time. It can help you recognize and get details about these flows such as their FlowEventID and related application.
Enter a duration using the minutes/hours selectors to list flows whose processing time exceeds this number. The Details button provides additional information about these flows such as FlowInitiatorID, associated connector, business object, and application.
This section displays the number of buffered events and the number of events pending in the database. It also displays two configurable Flow Control properties: Max Event Capacity and Blocked Status. Use this section to monitor the Flow Control of the collaboration object and to determine if you need to reconfigure the Flow Control properties of the collaboration object. For instructions on reconfiguring Flow Control properties, see Steps for configuring flow control for collaboration objects.
Use the In Progress, Queued, and Current rate areas to monitor the number of flows that are queued, the number that are currently processing, and the rate at which the flows are processed.
Use the number of the mean service time during normal processing as a base to determine if processing rates are increasing. During normal system operation, this number should be fairly constant. A noticeable increase might reflect a problem such as a network or application slowdown or other situation that needs to be resolved.
Use the queued Events statistic to help tune the collaboration for concurrent flow processing, if necessary. If the installation consistently shows long queues, an option is to increase the number of concurrent event-triggered flows for the collaboration and restart the collaboration. Increasing the number of concurrent flows increases the system process size and may require additional database connections.
To check connector statistics, right-click the connector whose statistics you want to view, then select Statistics. The statistics for that connector appear in the upper-right quadrant of System Manager.
The statistics window for connectors provides information about the running connector. It shows the connector's application, when the connector was started, how long it has been running, the number of business objects it has received and sent, and the Flow Control information.
This section displays the start time of the connector and how long is has been running.
This section displays the total number of business objects received and sent during the time the connector has been running.
Business objects sent and received
This area lists the names of the business objects the connector has sent and received. If the number of business objects sent does not match the number received, some business objects might not have been processed completely.
This area lists the subscriptions the collaboration subscribes to and the business object name and verb for that subscription. Check the list of subscriptions to verify that the names of the collaborations and initiators are all present and that they are supposed to be there.
This section displays the number of buffered events and the number of events pending in the database. It also displays two configurable Flow Control properties: Max Event Capacity and Blocked Status. Use this section to monitor the Flow Control of the connector and to determine if you need to reconfigure the Flow Control properties of the connector. For instructions on reconfiguring Flow Control properties, see Steps for configuring flow control for connectors.