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  1. Kogito
  2. KOGITO-6346

Setting up MongoDB/PostgreSQL persistence for Serverless workflow errors for generating proto

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      I am deploying my SWOrchestration Microservice as Knative/ScaleToZero and it includes a Async Call, which it has to wait for before the Orchestration is considered complete.

      While waiting for this Async call, the SWOrch is scaled to Zero. For it to re-scale to 1 and resume the workflow instance upon reciept of the Async Call, I need to setup Data Persistence to store and retrieve the Workflow Process Instance ID.

      I have modified the Callback Example in my fork and branch so that the Async Call can be returned/triggered by Me manually. This works as desired.

      Next: I am trying to add in Data Persistence via Mongo DB but am failing to make it work. I have so far:

      • Added the Pom Dependency
      • Added in the Application Properties to my MongoDB Server

      Running 

      mvn clean compile quarkus:dev

      I hit the error:

       

      2021-11-30 14:06:37,364 ERROR [io.qua.dep.dev.IsolatedDevModeMain] (main) Failed to start quarkus: java.lang.RuntimeException: io.quarkus.builder.BuildException: Build failure: Build failed due to errors
        [error]: Build step org.kie.kogito.quarkus.processes.deployment.ProcessesAssetsProcessor#postGenerationProcessing threw an exception: java.lang.RuntimeException: Error while generating proto for model class null null
        at org.kie.kogito.codegen.process.persistence.proto.AbstractProtoGenerator.generate(AbstractProtoGenerator.java:143)
        at org.kie.kogito.codegen.process.persistence.proto.AbstractProtoGenerator.protoOfDataClasses(AbstractProtoGenerator.java:52)
        at org.kie.kogito.codegen.process.persistence.PersistenceGenerator.generateProtoMarshaller(PersistenceGenerator.java:278)
        at org.kie.kogito.codegen.process.persistence.PersistenceGenerator.internalGenerate(PersistenceGenerator.java:179)
        at org.kie.kogito.codegen.core.AbstractGenerator.generate(AbstractGenerator.java:69)
        at org.kie.kogito.quarkus.processes.deployment.ProcessesAssetsProcessor.getGeneratedPersistenceFiles(ProcessesAssetsProcessor.java:235)
        at org.kie.kogito.quarkus.processes.deployment.ProcessesAssetsProcessor.generatePersistenceInfo(ProcessesAssetsProcessor.java:198)
        at org.kie.kogito.quarkus.processes.deployment.ProcessesAssetsProcessor.postGenerationProcessing(ProcessesAssetsProcessor.java:165)
...
 

       

      Which suggests that the Required proto is failed to being generated, meaning that the MongoDB is not storing my Process Instance.

       

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          is cloned by

          Bug - A problem that impairs or prevents the functions of the product. KOGITO-6420 Setting up MongoDB/PostgreSQL persistence for Serverless workflow errors for generating proto / TEST CASE

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Open
          is related to

          Enhancement - An enhancement to or refactoring of existing functionality that is not configurable by an end user (typically a change made by an internal team that affects users) KOGITO-6453 Serverless Workflow extension should disable the protobuf generation by default

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Closed

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              rhn-support-egonzale Enrique Gonzalez Martinez (Inactive)
              prattyush.mangal@ibm.com Prattyush Mangal (Inactive)
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