Hi,

We were still configuring the stream service as external Kafka on ibm liberty server. The following error occurred after running pega with configured prconfig.xml by the documentation.

the documentation link -->  https://docs-previous.pega.com/decision-management/87/configuring-external-kafka-stream-service

We turned on the debug.

We tried many things but the Kafka service name does not get set. can look at the shared configuration files.  

We successfully created a Kafka instance on dev studio with the same broker connection so also shared the Kafka client properties file.

I don't know why  Pega doesn't allow to use of the same file when configuring external Kafka as a stream.

I believe it is not a good practice to just bound up with prconfig.xml while can configure the connection via the Kafka instance on dev studio.

-------------------------------Added new lines to prconfig.xml -----------------------------------

<!-- Provide bootstrap servers -->     <env name="services/stream/broker/url" value="*************:9092"     />     <!-- Optional: provide desired replication factor. By default, we will set     replication factor equal to the number of brokers in the previous setting     -->     <!-- Available from 8.4.1 onwards -->     <env name="services/stream/external/replication/factor" value="2"/>

    <!-- Security protocol -->     <!-- Set stream provider as external Kafka -->     <env name="services/stream/provider" value="ExternalKafka"/>     <!-- Provide bootstrap servers -->     <env name="services/stream/encryption/security/protocol" value="SASL_PLAINTEXT"/>     <env name="services/stream/encryption/sasl/mechanism" value="GSSAPI"/>     <env name="dnode/kafka/producer/sasl.kerberos.service.name" value="kafka"/>     <env name="dnode/kafka/consumer/sasl.kerberos.service.name" value="kafka"/>         <env name="services/stream/encryption/sasl/jaas/config" value="com.ibm.security.auth.module.Krb5LoginModule required debug=true credsType=both useKeytab='/ibm/servers/pega/PegaConfig/usrpegakafka_PGA.keytab' principal='******@****';"/>     <env name="services/stream/name/pattern" value="pega_{stream.name}"/>        

--------------------------------- debug message ------------------------------------------------------------------

Thanks in advance.