Disabling process instrumentation data

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If Business Automation Workflow instrumentation appears to use large amounts of memory, you can disable this service or the collection of Business Automation Workflow runtime statistics by adding specific settings to the 100Custom.xml file.

About this task

In high-load scenarios, when a lot of instrumentation is created in a short period, instrumentation data can appear in memory-heap dumps to be using a lot of memory. Examples of high-load scenarios are the excessive use of team filter services or large JavaScript code that calls many Business Automation Workflow APIs. If such processing occurs over a long period, the heap that the collected instrumentation data uses grows continuously because more data is generated than used. In such cases, depending on the available heap size, out-of-memory situations can occur even if instrumentation data does not use all the heap space.

From Business Automation Workflow V8.5.7.0 on, you can reduce memory use by disabling Business Automation Workflow instrumentation and the collection of Business Automation Workflow runtime statistics. Instrumentation and collection of runtime statistics are enabled or disabled separately for IBM® Workflow Server, IBM Workflow Center, and the Performance Data Warehouse server.

Procedure

To disable Business Automation Workflow instrumentation for IBM Workflow Server or IBM Workflow Center, add the following enable-instrumentation setting to the 100Custom.xml file in the process-server or process-center configuration directory. For the Performance Data Warehouse server, do the same in the configuration directory for the Performance Data Warehouse.
```
<server>
   <enable-instrumentation merge="replace">false</enable-instrumentation>
</server>
```
If this property is not set or is set to true, Business Automation Workflow instrumentation is enabled for the appropriate server.
To disable the collection of Business Automation Workflow runtime statistics for IBM Workflow Server or IBM Workflow Server, add the following collect-runtime-stats setting to the 100Custom.xml file in the process-server or process-center configuration directory. For the Performance Data Warehouse server, do the same in the configuration directory for Performance Data Warehouse.
```
<server>
   <collect-runtime-stats merge="replace">false</collect-runtime-stats>
</server>
```
If this property is not set or is set to true, the collection of Business Automation Workflow runtime statistics is enabled for the appropriate server.