Monitoring and maintaining system data
To prevent performance issues, periodically
monitor and purge your Process and Performance Data Warehouse databases
of data that is no longer required.
Monitoring system data
You can monitor
key process-related artifacts that can impact performance by using
the following functions in Process Admin Console:
- System Maintenance Status
- View aggregated status that displays the number of artifact instances
for several artifact types to ensure that the amount of data is below
system capacity. The system tracks by default artifact types such
as processes, named snapshots, unnamed snapshots, tasks, and durable
messages. The thresholds that are set for an artifact type are intended
to define the number of instances that can accumulate without impacting
performance. For each artifact type, the system notifies you with SystemOut.log file
messages when the number exceeds the established thresholds. To customize
the threshold settings, see Configuring notifications and actions for system maintenance.
To view the status, log in to the Process Admin Console, and click the System Maintenance Status tab.
- Performance Dashboard
- View detailed information for the processes and other artifacts
that affect the health of your system. For more information, see Discovering and managing database performance issues by using the Performance Dashboard.
To access the dashboard, log in to the Process Admin Console. In the Server Admin area of the console, click .
Maintaining system data
An administrator
can purge unneeded data by using the Process Admin Console, Business Automation Workflow operations
REST API, or wsadmin commands.
Important: All
calls to the Business Automation Workflow operations
REST API require that the HTTP header
BPMCSRFToken is
set with every request. For information about how to obtain a token,
see Preventing cross site request forgery.Tip: Removing
process applications and toolkits also deletes related process and
task instance data.
The following table enumerates the Process Admin Console functions, REST API, and wsadmin commands to maintain the key artifacts. For additional guidance on maintaining the system, see Managing persisted data and Purging data in IBM Business Process Manager.
| Artifact type | Process Admin Console | REST API | wsadmin commands |
|---|---|---|---|
| Process instances | See Deleting process instances |
|
|
| Tasks | Not available |
|
|
| Named snapshots | See Deleting snapshots |
|
|
| Unnamed snapshots | Not applicable to Workflow Server | See Deleting snapshots Not applicable to Workflow Server |
|
| Durable messages | Not available | Not available |
|