[CAMEL-17390] camel-core - Cannot set tracer on a started CamelContext

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.14.0
• Fix Version/s: 3.14.1, 3.15.0
• Component/s: came-core

Environment

OS: Windows 8 / Windows 10
Java: OpenJDK 11 (OpenJDK Runtime Environment AdoptOpenJDK (build 11.0.10+9))
Camel: 3.14.0

• Estimated Complexity: Unknown
• Assignee: Claus Ibsen
• Reporter: Raymond
• Created: 27/Dec/21 13:51
• Updated: 31/Dec/21 09:06
• Resolved: 31/Dec/21 09:06

Description

context = new DefaultCamelContext(registry);

  //setting tracing standby to true, so it can be enabled during runtime
 context.setTracingStandby(true);

 

During runtime I later want to set the tracing on demand:

        Tracer tracer = context.getTracer();
        tracer.setEnabled(true);            

Following the documentation: https://camel.apache.org/manual/tracer.html

However when setting:

 context.setTracingStandby(true);

And then start a Camel route (context.addRoute(myRoute); or context.addOrUpdateRoutes(myRoute)) I get the following error:

org.apache.camel.FailedToCreateRouteException: Failed to create route 33-33 at: >>> SetHeader[AssimblyHeaderId, null] <<
< in route: Route(33-33)[Fromfile://C:\test1 -> [SetHeader[AssimblyHea... because of Cannot set tracer on a started Ca
melContext
        at org.apache.camel.reifier.RouteReifier.doCreateRoute(RouteReifier.java:240)
        at org.apache.camel.reifier.RouteReifier.createRoute(RouteReifier.java:74)
        at org.apache.camel.impl.DefaultModelReifierFactory.createRoute(DefaultModelReifierFactory.java:49)
        at org.apache.camel.impl.DefaultCamelContext.startRouteDefinitions(DefaultCamelContext.java:868)
        at org.apache.camel.impl.DefaultModel.addRouteDefinitions(DefaultModel.java:185)
        at org.apache.camel.impl.DefaultCamelContext.addRouteDefinitions(DefaultCamelContext.java:336)
        at org.apache.camel.builder.RouteBuilder.populateOrUpdateRoutes(RouteBuilder.java:652)
        at org.apache.camel.builder.RouteBuilder.updateRoutesToCamelContext(RouteBuilder.java:530)

In my routebuilder or before I can not find an entry where I set the tracer. In 3.11.x I have the following context.setTracer(true);  (but I removed this line). Could you check if you can reproduce this?

When I put the following line in comment the error goes away:

//context.setTracingStandby(true);

But then I cannot set it at runtime.