I am using spring cloud slueth with zipkin in spring boot to trace the services calls.
My spring cloud version is Edgware.RELEASE
Now I when I tried to trace my facade layer which uses rxjava, it creates 12 traces for a single request?
What should I do ? I mean i want just 1 trace should be generated for 1 request of facade layer(facade layer do parallel calls using rxjava).
I am using slueth with http and have not change any property if properties file
I have added these 2 dependencies:
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-zipkin</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-sleuth</artifactId>
</dependency>
This I have added in properties file:
spring.zipkin.baseUrl: http://172.16.3.197:9411/
spring.slueth.enabled: true
spring.sleuth.sampler.percentage: 1
Related
I am configuring spring config server with control bus(rabbitmq) but when i add its dependency the application failed to start with error:
APPLICATION FAILED TO START
Description:
An attempt was made to call a method that does not exist. The attempt was made from the following location:
org.springframework.cloud.stream.binder.rabbit.RabbitMessageChannelBinder.createConsumerEndpoint(RabbitMessageChannelBinder.java:517)
The following method did not exist:
'void org.springframework.integration.amqp.inbound.AmqpInboundChannelAdapter.<init>(org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer)'
The method's class, org.springframework.integration.amqp.inbound.AmqpInboundChannelAdapter, is available from the following locations:
jar:file:/D:/maven/Repo/org/springframework/integration/spring-integration-amqp/5.5.2/spring-integration-amqp-5.5.2.jar!/org/springframework/integration/amqp/inbound/AmqpInboundChannelAdapter.class
The class hierarchy was loaded from the following locations:
org.springframework.integration.amqp.inbound.AmqpInboundChannelAdapter: file:/D:/maven/Repo/org/springframework/integration/spring-integration-amqp/5.5.2/spring-integration-amqp-5.5.2.jar
org.springframework.integration.endpoint.MessageProducerSupport: file:/D:/maven/Repo/org/springframework/integration/spring-integration-core/5.5.2/spring-integration-core-5.5.2.jar
org.springframework.integration.endpoint.AbstractEndpoint: file:/D:/maven/Repo/org/springframework/integration/spring-integration-core/5.5.2/spring-integration-core-5.5.2.jar
org.springframework.integration.context.IntegrationObjectSupport: file:/D:/maven/Repo/org/springframework/integration/spring-integration-core/5.5.2/spring-integration-core-5.5.2.jar
Action:
Correct the classpath of your application so that it contains a single, compatible version of org.springframework.integration.amqp.inbound.AmqpInboundChannelAdapter
Using spring cloud version <spring-cloud.version>2020.0.3</spring-cloud.version> and spring boot version 2.5.3 and my pom.xml contains following dependencies (unrelated ones are removed)
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-config-server</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-config-monitor</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-bus-amqp</artifactId>
</dependency>
It's a known issue; fixed in spring-integration-amqp 5.5.3 (Boot 2.5.4).
https://github.com/spring-projects/spring-integration/issues/3606
I tried to test the reactive web client provided by vertx munity web client.
I followed the official guide Quarkus - Getting Started with Reactive.
And added the following in dependencies.
<dependency>
<groupId>io.quarkus</groupId>
<artifactId>quarkus-resteasy</artifactId>
</dependency>
<dependency>
<groupId>io.quarkus</groupId>
<artifactId>quarkus-resteasy-jsonb</artifactId>
</dependency>
<dependency>
<groupId>io.smallrye.reactive</groupId>
<artifactId>smallrye-mutiny-vertx-web-client</artifactId>
</dependency>
But when I injected Vertx as mentioned in the article, and got the CDI unsatisfied dependency exception. Vertx is not available.
Caused by: javax.enterprise.inject.UnsatisfiedResolutionException: Unsatisfied dependency for type io.vertx.mutiny.core.Vertx and qualifiers [#Default]
- java member: com.example.PostResourceClient#vertx
The complete codes are here.
You need to add the io.quarkus:quarkus-vertx dependency to your POM to activate the Vertx extension. io.smallrye.reactive:smallrye-mutiny-vertx-web-client is an external dependency that does not activate any extension.
I have created a business process and build it as a jar in Kie Workbench (version 7.16.0.Final).
When trying to execute the process I got the Runtime exception.
2019-01-20 21:35:57.092 [http-nio-9043-exec-8] ERROR o.a.c.c.C.[.[.[.[dispatcherServlet] - Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is java.lang.RuntimeException: Unknown resource type: ResourceType = 'jBPM BPMN2 Language'] with root cause
java.lang.RuntimeException: Unknown resource type: ResourceType = 'jBPM BPMN2 Language'
at org.kie.internal.services.KieAssemblersImpl.addResource(KieAssemblersImpl.java:51)
at org.drools.compiler.builder.impl.KnowledgeBuilderImpl.addPackageForExternalType(KnowledgeBuilderImpl.java:778)
at org.drools.compiler.builder.impl.KnowledgeBuilderImpl.addKnowledgeResource(KnowledgeBuilderImpl.java:763)
at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl$ResourceBuilder.lambda$static$6(CompositeKnowledgeBuilderImpl.java:307)
at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.buildResourceType(CompositeKnowledgeBuilderImpl.java:141)
at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.buildProcesses(CompositeKnowledgeBuilderImpl.java:121)
at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.build(CompositeKnowledgeBuilderImpl.java:112)
at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.build(CompositeKnowledgeBuilderImpl.java:100)
at org.drools.compiler.kie.builder.impl.AbstractKieProject.buildKnowledgePackages(AbstractKieProject.java:251)
at org.drools.compiler.kie.builder.impl.AbstractKieModule.buildKnowledgePackages(AbstractKieModule.java:201)
at org.drools.compiler.kie.builder.impl.AbstractKieModule.createKieBase(AbstractKieModule.java:214)
at org.drools.compiler.kie.builder.impl.KieContainerImpl.createKieBase(KieContainerImpl.java:406)
at org.drools.compiler.kie.builder.impl.KieContainerImpl.getKieBase(KieContainerImpl.java:374)
at org.drools.compiler.kie.builder.impl.KieContainerImpl.getKieBaseFromKieSessionModel(KieContainerImpl.java:575)
at org.drools.compiler.kie.builder.impl.KieContainerImpl.newKieSession(KieContainerImpl.java:551)
at org.drools.compiler.kie.builder.impl.KieContainerImpl.newKieSession(KieContainerImpl.java:521)
I faced this same issue (although in KIE/Drools 7.17.0.Final) and the problem was a missing dependency. In my case I had Drools/KIE/JBPM as a JBoss module and didn't have all required JARs declared in module.xml.
What I did to fix it was to add the following two JARs to module.xml (and of course, put the JARs into the module's main folder):
jbpm-bpmn2-7.17.0.Final.jar
jbpm-flow-builder-7.17.0.Final.jar
You can find these JARs under Drools and jBPM tools distribution.
When using as runtime version one of the latest:
<runtime.version>7.42.0.Final</runtime.version>
Then, it's enough to have the following set of libraries (which are automatically added if you create a Drools project with Eclipse+Drools plugin):
<dependency>
<groupId>org.kie</groupId>
<artifactId>kie-api</artifactId>
</dependency>
<dependency>
<groupId>org.drools</groupId>
<artifactId>drools-core</artifactId>
</dependency>
<dependency>
<groupId>org.drools</groupId>
<artifactId>drools-decisiontables</artifactId>
</dependency>
<dependency>
<groupId>org.jbpm</groupId>
<artifactId>jbpm-test</artifactId>
</dependency>
There's a sample demo project here: Using Drools Rules with jBPM
Microservice1 -> kafka -> Microservice2
How do I pass the trace ID when transferring data?
and i'm using spring sleuth for makeing trace ID.
and i'm using "compile('org.springframework.kafka:spring-kafka:2.1.2.RELEASE')"
Please read the docs https://cloud.spring.io/spring-cloud-static/Finchley.SR2/single/spring-cloud.html#_sleuth_with_zipkin_over_rabbitmq_or_kafka
48.3.3 Sleuth with Zipkin over RabbitMQ or Kafka If you want to use RabbitMQ or Kafka instead of HTTP, add the spring-rabbit or
spring-kafka dependency. The default destination name is zipkin.
If using Kafka, you must set the property spring.zipkin.sender.type
property accordingly:
spring.zipkin.sender.type: kafka [Caution] Caution
spring-cloud-sleuth-stream is deprecated and incompatible with these
destinations.
If you want Sleuth over RabbitMQ, add the spring-cloud-starter-zipkin
and spring-rabbit dependencies.
The following example shows how to do so for Gradle:
Maven.
<dependencyManagement> 1
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${release.train.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies> </dependencyManagement>
<dependency> 2
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-zipkin</artifactId> </dependency> <dependency> 3
<groupId>org.springframework.amqp</groupId>
<artifactId>spring-rabbit</artifactId> </dependency> 1
We recommend that you add the dependency management through the Spring
BOM so that you need not manage versions yourself.
2
Add the dependency to spring-cloud-starter-zipkin. That way, all
nested dependencies get downloaded.
3
To automatically configure RabbitMQ, add the spring-rabbit dependency.
Gradle.
dependencyManagement { 1
imports {
mavenBom "org.springframework.cloud:spring-cloud-dependencies:${releaseTrainVersion}"
} }
dependencies {
compile "org.springframework.cloud:spring-cloud-starter-zipkin" 2
compile "org.springframework.amqp:spring-rabbit" 3 } 1
We recommend that you add the dependency management through the Spring
BOM so that you need not manage versions yourself.
2
Add the dependency to spring-cloud-starter-zipkin. That way, all
nested dependencies get downloaded.
3
To automatically configure RabbitMQ, add the spring-rabbit dependency.
I was following short tutorial on creating REST api using JAX-RS. I am using Tomcat server v7.0. When I run the application on the server I get error 404-requested resource is not available.
The project is Maven based, and my pom.xml file includes the following line
<properties>
<failOnMissingWebXml>false</failOnMissingWebXml>
</properties>
I do not have web.xml file as a result. That was how the tutorial was achieved. I do not have index.html/jsp file. I have created two classes RESTconfig.java and BookResources.java
...import statements
#ApplicationPath("api")
public class RESTconfig extends Application {
}
...import statements
#Path("books")
public class BookResources {
#GET
#Produces(MediaType.TEXT_PLAIN)
public String books() {
return "Hello world";
}
}
My pom.xml file looks like this
<groupId>com.dere</groupId>
<artifactId>myrest</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<properties>
<failOnMissingWebXml>false</failOnMissingWebXml>
</properties>
<dependencies>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>7.0</version>
<scope>provided</scope>
</dependency>
Once I run the application on the server and go to http://localhost:9090 I am able to see Tomcat home page, but if try to get data http://localhost:9090/myrest/api/books I get the 404 error, i.e requested resource is not available, I mentioned above.
Most of the examples or usage I saw online involve using web.xml and providing root of the application and using a servlet. This is my first exposure to building REST api. I may have misunderstood the whole thing or I skipped some step. I look forward for your help.
I am using Eclipse Photon for Java EE
Look at this
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>7.0</version>
</dependency>
This is nothing more than basically a bunch of interfaces for the EE spec. There is no implementation. Java EE servers will have the implementation. Tomcat is not an EE server. The only part of the EE spec it will definitely have the implementation for is Servlets and JSP (the web profile). If you want an EE server, checkout Glassfish or Wildfly.
You are trying to work with the JAX-RS spec, where Tomcat for sure by default does not have an implementation for. So you need to add that implementation. The easiest implementation, IMO to get started with, is Jersey. You can simply add this dependency
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet</artifactId>
<version>2.25.1</version>
</dependency>
and it will get you up and running. Keep the Jersey User Guide handy. It will come in use.