Most Pega^® Platform applications that use the decisioning features of Customer Decision Hub (CDH) are high-load deployments that require high throughput and low latency rates.

To maximize performance of your application, disable the following settings:

• String pool and PAL usage tracking in the prconfig.xml file:

  <env name="collections/stringpool/enable" value="false"/>

  <env name="usage/usagetrackingenabled" value="false"/>

  The String pool setting is not necessary for CDH-related tests; it can be disabled to improve performance. When the PAL usage tracking setting is enabled, it provides significant overhead for high-load applications. Disabling this setting reduces the overhead but it also disables PAL operational statistics.

• Elastic search indexing in the JVM parameters of your web server:

  -DNodeSettings=\"Pega-SearchEngine/indexing/distributed/enabled=false\"

  The Elastic search indexing is useful in development environments and customer-facing applications where it is necessary to find work object very quickly, but for headless deployments like CDH, this feature is not needed.