No connector found for connector id 'run-db' (Solved)

Camunda 7 Topics Discussion & Questions
1

Hi All,

I am using the 7.9 camunda shared process engine. And need to execute database stored-procedures from BPM flows to execute business logic.

I have tried using connector as following, however, when the flow reaches there it says “No connector found for connector id ‘run-db’”.

I have already done following-

  1. added META-INF/services folder and added file as below

    image
    image1225×167 14.1 KB

  2. added connnector configuration in BPM flow

  3. added Connector implementation class

  4. Updated POM file as below

7.9.0 3.1.2.RELEASE 1.8 1.8 UTF-8 
  <dependencies>
    <dependency>
      <groupId>org.camunda.bpm</groupId>
      <artifactId>camunda-engine-spring</artifactId>
      <version>${camunda.version}</version>
      <scope>provided</scope>
    </dependency>

    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.0.1</version>
      <scope>provided</scope>
    </dependency>

    <dependency>
      <groupId>com.h2database</groupId>
      <artifactId>h2</artifactId>
      <version>1.3.168</version>
      <scope>provided</scope>
    </dependency>
    
    <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-web</artifactId>
       <version>${spring.version}</version>
     </dependency>
     
     <dependency>
	    <groupId>org.camunda.connect</groupId>
	    <artifactId>camunda-connect-core</artifactId>
	    <version>1.1.0</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/org.camunda.bpm/camunda-engine-plugin-connect -->
	<dependency>
	    <groupId>org.camunda.bpm</groupId>
	    <artifactId>camunda-engine-plugin-connect</artifactId>
	    <version>7.9.0</version>
	</dependency>

Problem-

**17-Dec-2018 16:54:34.878 SEVERE [http-nio-8080-exec-4] org.camunda.commons.logging.BaseLogger.logError ENGINE-16004 Exception while closing command context: No connector found for connector id 'run-db'**
 org.camunda.connect.ConnectorException: No connector found for connector id 'run-db'
        at org.camunda.connect.plugin.impl.ServiceTaskConnectorActivityBehavior.ensureConnectorInitialized(ServiceTaskConnectorActivityBehavior.java:94)
        at org.camunda.connect.plugin.impl.ServiceTaskConnectorActivityBehavior.execute(ServiceTaskConnectorActivityBehavior.java:49)
        at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute$2.callback(PvmAtomicOperationActivityExecute.java:57)
        at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute$2.callback(PvmAtomicOperationActivityExecute.java:46)
        at org.camunda.bpm.engine.impl.pvm.runtime.PvmExecutionImpl.continueIfExecutionDoesNotAffectNextOperation(PvmExecutionImpl.java:1965)
        at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:38)
        at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:27)
        at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:91)
        at org.camunda.bpm.engine.impl.interceptor.CommandInvocationContext.invokeNext(CommandInvocationContext.java:125)
        at org.camunda.bpm.engine.impl.interceptor.CommandInvocationContext.performNext(CommandInvocationContext.java:104)
        at org.camunda.bpm.engine.impl.interceptor.CommandInvocationContext.performOperation(CommandInvocationContext.java:79)
        at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:618)
        at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:594)
        at org.camunda.bpm.engine.impl.pvm.runtime.PvmExecutionImpl$5.callback(PvmExecutionImpl.java:1904)
        at org.camunda.bpm.engine.impl.pvm.runtime.PvmExecutionImpl$5.callback(PvmExecutionImpl.java:1901)
        at org.camunda.bpm.engine.impl.pvm.runtime.PvmExecutionImpl.continueExecutionIfNotCanceled(PvmExecutionImpl.java:1971)
2

I have solved the problem. There was some basic steps I was missing as following.

##Make sure you are not mistaken for below

  1. The connector code starts from tomcat lib directory.
  2. META-INF/services folder was missing.