Router configuration not working

[Vaibhav R]

Hi,

I am trying to configure router with kie-server and workbench, but its not working. I followed below steps:

Environment:

Node-1, EAP 7.1+  workbench (kie-server.war is not deployed on this node)

Node-2  EAP 7.1 + kie-server.war (kie-server running in unmanaged mode.)

Node-2  Router started through rhpam-7.1-smart-router.jar file.

Steps: 

1. First router started with below command:

~~~

java -jar rhpam-7.1-smart-router.jar

~~~

2. Started workbench with below command:

~~~

$JBOSS_HOME/bin/standalone.sh

~~~

3. Started kie-server.war with router property:

~~~

$JBOSS_HOMe/bin/standalone.sh -Dorg.kie.server.id=default-server -Dorg.kie.server.location=http://10.10.10.10:8080/kie-server/services/rest/server -Dorg.kie.server.router=http://10.10.10.10:9000

~~~

4. Restarted router with workbench location:

~~~

java -Dorg.kie.server.router.host=10.10.10.10 -Dorg.kie.server.router.port=9000 -Dorg.kie.server.controller=http://20.20.20.20:8080/business-central/rest/controller -Dorg.kie.server.controller.user=User1 -Dorg.kie.server.controller.pwd=admin12@ -Dorg.kie.server.router.config.watcher.enabled=true -jar rhpam-7.1-smart-router.jar

~~~

When I login into workbench, and try to create container on kie-server.war running on node-2, its not working. In the console I can see below error:

~~~

 WARN  [org.kie.server.controller.impl.KieServerInstanceManager] (Thread-195) Unable to get list of containers from remote server at url http://10.10.10.10:9000 due to Unexpected HTTP response code when requesting URI 'http://10.10.10.10:9000/containers'! Error code: 404, message: 

 ERROR [stderr] (Thread-195) Exception in thread "Thread-195" org.kie.server.api.exception.KieServicesHttpException: Unexpected HTTP response code when requesting URI 'http://10.10.10.10:9000/containers'! Error code: 404, message: 

 ERROR [stderr] (Thread-195) at org.kie.server.client.impl.AbstractKieServicesClientImpl.createExceptionForUnexpectedResponseCode(AbstractKieServicesClientImpl.java:617)

 ERROR [stderr] (Thread-195) at org.kie.server.client.impl.AbstractKieServicesClientImpl.makeHttpGetRequestAndCreateServiceResponse(AbstractKieServicesClientImpl.java:191)

 ERROR [stderr] (Thread-195) at org.kie.server.client.impl.KieServicesClientImpl.listContainers(KieServicesClientImpl.java:175)

 ERROR [stderr] (Thread-195) at org.kie.server.client.impl.KieServicesClientImpl.listContainers(KieServicesClientImpl.java:167)

 ERROR [stderr] (Thread-195) at org.kie.server.controller.impl.KieServerInstanceManager.getContainers(KieServerInstanceManager.java:389)

 ERROR [stderr] (Thread-195) at org.kie.workbench.common.screens.server.management.backend.runtime.AsyncKieServerInstanceManager.access$701(AsyncKieServerInstanceManager.java:53)

 ERROR [stderr] (Thread-195) at org.kie.workbench.common.screens.server.management.backend.runtime.AsyncKieServerInstanceManager$7.run(AsyncKieServerInstanceManager.java:206)

 ERROR [stderr] (Thread-195) at org.uberfire.backend.server.cdi.workspace.WorkspaceExecutorService.lambda$generateRunnable$0(WorkspaceExecutorService.java:134)

 ERROR [stderr] (Thread-195) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

 ERROR [stderr] (Thread-195) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

 ERROR [stderr] (Thread-195) at java.lang.Thread.run(Thread.java:745)

~~~

Why there is no documentation on router configuration ? Or I missed it. 

[Maciej Swiderski]

I’d encourage to go over these two articles:

http://mswiderski.blogspot.com/2016/12/kie-server-router-even-more-flexibility.html

http://mswiderski.blogspot.com/2017/01/kie-server-router-integrated-with.html

Where you will find following:

"Router cannot be used to deploy new containers - this is due to it will not know given container id yet and thus won’t be able to decide in which server it should be deployed"
Maciej

[Vaibhav R]

Hi Maciej,

Sorry for the late reply.

As suggested by you I have created kie-containers first and then started smart router, I am able to see both kie-containers in workbench console. But in 'Process Definitions' tab I can process from only one kie-container. Also when I try to start process instance through kie-workbench it fails with exception:

Exception in kie-server node:

~~~~

 ERROR [org.kie.server.remote.rest.jbpm.QueryDataResource] (default task-10) Unexpected error during processing: Query jbpmHumanTasksWithUser not found: org.jbpm.services.api.query.QueryNotFoundException: Query jbpmHumanTasksWithUser not found

~~~~

Complete stack trace(kieServerException) attached to mail

At router end below exception logged:

~~~

java.io.IOException: Server returned HTTP response code: 500 for URL: http://localhost:8280/kie-server/services/rest/server/queries/definitions/jbpmHumanTasksWithUser/filtered-data?mapper=RawList&page=0&pageSize=-1

~~~

Complete stack trace attached(Router exception).

Am I missing any configuration ? 

FYI, I am using RHPAM 7.1 release.

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[Maciej Swiderski]

This error means your kie servers did not get queries registered from workbench. So depending on your setup there are two options:

- make kie servers managed - meaning point kie servers to workbench so they register in the controller and then will get queries registered by default

- extract query definitions from workbench and place them in kie server.war/WEB-INF/classes in a file named default-query-definitions.json https://github.com/kiegroup/jbpm-wb/blob/master/jbpm-wb-kie-server/jbpm-wb-kie-server-backend/src/main/resources/default-query-definitions.json

Maciej

<KieServerException><RouterException>