IBM Event Streams and IBM Event Automation

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  • 1.  Trying to connect ACE V12 with IBM EventStreams(Kafka)

    Posted Fri September 08, 2023 10:52 AM

    Hi All,

    I am trying to connect Kafka via App connect , Given all the needed configurations in the policy file (Bootstrap server , truststore location , security protocol).

    I am getting below error,

    BIP4362E: Java node error: [BIPmsgs:3891]BIP3891E: The Kafka input connector was unable to subscribe to topic 'cip-ebl-inout-ace-log' on Kafka server at address ''. Explanation 'Timeout expired while fetching topic metadata'.


    The Kafka input connector attempted to subscribe to the topic 'cip-ebl-inout-ace-log' but no response was received within the timeout period. Possible reasons for this are:
    1) The Kafka server is not running at the server address.
    2) The security credentials supplied are invalid.
    The Kafka input connector will retry the operation.


    If the problem persists, investigate and rectify the cause of the failure using the information in the message explanation and retry the operation. Further information on the cause of the failure may be available by enabling more detailed logging from the Kafka client by modifying the log4j properties file. : writeSystemLogError.

    Please help me to resolve this error.

    Aswini M

  • 2.  RE: Trying to connect ACE V12 with IBM EventStreams(Kafka)

    User Group Leader
    Posted Fri September 22, 2023 03:01 PM

    Hi @Aswini M

    there are several settings that need to be carefully configured for this to work correctly, the team has provided a checklist at the following link that you may find helpful to make sure that it works correctly. Take a look at it and see if you have missed a step. if the issue persists, please reach out to me via email (you can find it in my profile). 

    Checklist: Connecting App Connect Enterprise to Event Streams

    Gabriel Marte Blanco
    Austin TX

  • 3.  RE: Trying to connect ACE V12 with IBM EventStreams(Kafka)

    Posted Mon September 25, 2023 04:12 AM


    Thank you so much.  Given link was very helpful.

    Aswini M