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Increase the stack size available to Java for both the Runtime and the customerdata service

To increase the default stack size available to Java, the following JVM parameter can be used.

-Xss16M

In this case, the stack size is set to 16 MB. This parameter needs be set for both the Runtime and the customerdata service. Please consult the documentation of your application server how to set this parameter on startup.

Increase the max http header size of the customerdata service

 Standalone jar

In the configuration of the customerdata service blueriq-customerdata-odata-service-v1.yml, located in the

server:
 max-http-header-size: 256000

JBoss EAP

Older versions (until JBoss EAP 6.4.0), with Tomcat as Servlet container, can use the code below. Note that the default value for the max header size is 8 KB in Tomcat.

<system-properties>
  ...
  <property name="org.apache.coyote.http11.Http11Protocol.MAX_HEADER_SIZE" value="256000"/>
</system-properties>

Newer versions (JBoss EAP 7.0 and newer), with Undertow as servlet container can use the code below. Note that the default value for the max header size is 1 MB in Undertow.

<subsystem xmlns="urn:jboss:domain:undertow:1.2">
  ...
  <server name="default-server">
    <http-listener name="default" ... max-header-size="256000"/>
    ...
  </server>
  ...
</subsystem>

Older versions (until JBoss EAP 6.4.0), with Tomcat as Servlet container, can use the code below. Note that the default value for the max header size is 8 KB in Tomcat.

<system-properties>
  ...
  <property name="org.apache.coyote.http11.Http11Protocol.MAX_HEADER_SIZE" value="256000"/>
</system-properties>

Tomcat

In server.xml, you can add an attribute maxHttpHeaderSize=256000 to the Connector that is used for the CDS. Note that the default value for this is 8 KB in Tomcat.

More information: https://tomcat.apache.org/tomcat-9.0-doc/config/http.html, https://tomcat.apache.org/tomcat-10.1-doc/config/http.html