I am new to JMX. I am using Spring 4 with JMX. I am also using Apache Camel and would like to expose a stop method. I have setup everything but when clicking on the stop method within MBeans in JConsole I get the following Exception:
Problem invoking stop : java.rmi.UnmarshalException: error unmarshalling return; nested exception is: java.io.WriteArbortedException:writing aborted:java.io.NotSerializableException: org.apache.camel.spring.SpringCamelContext
The project is located on GitHub: https://github.com/rajivj2/example2/
The class for the MBean code is located is in com.example.config.ApacheCamelConfig.java
Once the project is build using mvn clean install run the following on the Command Prompt:
java -Dcom.sun.management.jmxremote.port=9999 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -jar server-app-jar-with-dependencies.jar
After this in the Java JDK bin folder open jconsole and connect to the server-app-jar-with-dependencies.jar. Locate the MBeans tab and the stop method.
I can't see where I am going wrong. The SpringCamelContext is provided by Apache Camel.
you should not return the CamelContext - it is not serializable.
separate the #Bean from the #ManagedOperation - the operation for stopping the route should have return type void
Related
I'm trying to use Logback to centralize the logging of 2 microservices.
Therefore reading the documention I understood I should setup a simpleLogServer to which send the logging events of my others 2 java microservices.
https://logback.qos.ch/manual/appenders.html#serverSocketAppender
Assuming you are in the logback-examples/ directory, start SimpleSocketServer with the following command:
java ch.qos.logback.classic.net.SimpleSocketServer 6000 src/main/java/chapters/appenders/socket/server1.xml
So I've clone the git hub repo https://github.com/qos-ch/logback and from inside the logback-examples/ directory I've run the command only to get:
Error: Could not find or load main class ch.qos.logback.classic.net.SimpleSocketServer
I can't find an example of what I'm trying to achieve, and also I don't understand how can I start a SimpleSocketServer on my prod server only launching a java command and without installing anything.
Can someone clarify that for me? Thanks
I've got a Spring Boot application that'd I'd like to automatically generate traces for using the OpenTelemetry Java agent, and subsequently upload those traces to Google Cloud Trace.
I've added the following code to the entry point of my application for sending traces:
OpenTelemetrySdk.builder()
.setTracerProvider(
SdkTracerProvider.builder()
.addSpanProcessor(
SimpleSpanProcessor.create(TraceExporter.createWithDefaultConfiguration())
)
.build()
)
.buildAndRegisterGlobal();
...and I'm running my application with the following system properties:
-javaagent:path/to/opentelemetry-javaagent-all.jar \
-jar myapp.jar
...but I don't know how to connect the two.
Is there some agent configuration I can apply? Something like:
-Dotel.traces.exporter=google_cloud_trace
I ended up resolving this as follows:
Clone the GoogleCloudPlatform /
opentelemetry-operations-java repo
git clone
git#github.com:GoogleCloudPlatform/opentelemetry-operations-java.git
Build the exporter-auto project
./gradlew clean :exporter-auto:shadowJar
Copy the jar produced in exporter-auto/build/libs to my target project
Run the application with the following arguments:
-javaagent:path/to/opentelemetry-javaagent-all.jar
-Dotel.javaagent.experimental.extensions=[artifact-from-step-3].jar
-Dotel.traces.exporter=google_cloud_trace
-Dotel.metrics.exporter=none
-jar myapp.jar
Note: This setup does not require any explicit code changes in the target code base.
I added db2 driver, edited module.xml in JBOSS_HOME/modules/com/ibm/main.
In this folder, I have
db2jcc4.jar
db2jcc_lecense_cu.jar
db2jcc_license_cisuz.jar
module.xml
After having these, I tried to launch JBoss console on Powershell
.\standalone.bat --server-config=standalone-full-ha.xml -Dcom.sun.CORBA.ORBDynamicStubFactoryFactoryClass=com.sun.corba.se.impl.presentation.rmi.StubFactoryFactoryStaticImpl
which I tried to handle ORB exception(related to this https://bugs.openjdk.java.net/browse/JDK-6497156)
But my jboss container is not launched. I checked the log file,
2019-09-17 296 FATAL [org.jboss.as.server] (main) WFLYSRV0239: Aborting with exit code
and error display on Powershell
WFLYSRV0073: Invalid option '.sun.CORBA.ORBDynamicStubFactoryFactoryClass=com.sun.corba.se.impl.presentation.rmi.StubFactoryFactoryStaticImpl'
It works on command prompts though. I am wondering it is correct way to pass argument like this. Thanks in advance!
Edit
I am using Java8, JBoss7.1
Powershell has issues with -D. Try this instead, notice the " around -D
.\standalone.bat --server-config=standalone-full-ha.xml "-Dcom.sun.CORBA.ORBDynamicStubFactoryFactoryClass=com.sun.corba.se.impl.presentation.rmi.StubFactoryFactoryStaticImpl"
I trying to deply my webapp on the remote server (VPS) using IDEA.
I done the following:
export JAVA_OPTS="-Dcom.sun.management.jmxremote=
-Dcom.sun.management.jmxremote.port=1099
-Dcom.sun.management.jmxremote.ssl=false
-Dcom.sun.management.jmxremote.authenticate=false"
And now it's fine, "Connected to server"
But then I got exception:
[2014-11-10 03:00:44,431] Artifact MavenChat:war:
javax.ejb.EJBException: The bean encountered a non-application
exception; nested exception is:
org.apache.openejb.OpenEJBRuntimeException:
java.io.FileNotFoundException:
/home/denis/apache-tomee-webprofile-1.7.1/bin/C:\Users\Denis\IdeaProjects\MavenChat\target\MavenChat.war
(No such file or directory)
How can I fix it?
When I manually deploy my app, I
Built MavenChat.war
Rename it to ROOT.war
Upload it to /home/denis/apache-tomee-webprofile-1.7.1/webapps
IDEA configuration screen:
I'm sure I done it wrong "Staging"
Ok, I could not configure it, but I can deploy my app to my remote server using maven!
I followed this manual and it works!
I am trying to create a windows service for Apache tomcat 7.0.45.
( in windows version 7)
I executed this :
C:/tomcat7/bin> service install Mytomcat7
Windows service has been created. but it wont start and throws "specific server error code 4".
Can you please help with the steps to create windows service.
I had the same problem!
Found out, that the service.bat didn't configure the service the right way. If you enable the logging from your service starter:
Then you'll see in your loggs something like:
[2014-02-19 16:40:35] [error] ( javajni.c:863 ) [ 2636] FindClass org/apache/catalina/startup/Bootstrap failed
[2014-02-19 16:40:35] [debug] ( javajni.c:964 ) [ 2636] Java Worker thread finished org/apache/catalina/startup/Bootstrap:main with status=3
[2014-02-19 16:40:35] [error] ( prunsrv.c:1183) [ 5000] Failed to start Java
[2014-02-19 16:40:35] [error] ( prunsrv.c:1536) [ 5000] ServiceStart returned 4
You'll notice that there is some classpath problem with the starter. In fact that's the problem! Your service.bat didn't configure the service the right way:
Note: You can also choose "Use default" above "Java Virtual Machine" to use whatever JVM is defined in JAVA_HOME
You'll need to set the classpath correctly:
c:\webclient\apache-tomcat\bin\tomcat-juli.jar;c:\webclient\apache-tomcat\bin\tomcat-juli.jar;c:\webclient\apache-tomcat\bin\bootstrap.jar
In my case i "installed" tomcat at: c:\webclient\apache-tomcat replace that part with yours. In my case not even the Java VM was set.. I'm not shure whether this is a problem with the current versions of tomcat (and it's service.bat), or with some sort of permission problem on the windows server itself..
To solve this error perform the following steps:
Run the tomcat7w.exe monitor application found in <TOMCAT_HOME>/bin.Tomcat7w is a GUI application for monitoring and configuring Tomcat services. If you named your service Mytomcat7 you will need to rename this file to Mytomcat7.exe before running it
In the "Startup" tab change the value of "Mode" from jvm to Java
Do the same in the "Shutdown" tab
The easiest way to setup a tomcat Windows service is to use the Tomcat Windows Service Installer found on the same page as tomcat downloads.
http://tomcat.apache.org/download-70.cgi
However, if you are unable to use this installer. Then you can as you have try the above. The service created 'Mytomcat7' can be managed by the tomcat7w.exe file, after you rename it to 'Mytomcat7w.exe'.
Run the renamed file and you will be able to see all options for the service. The error you are seeing is likely related to an invalid JVM location or JVM mode not set to auto.
Details of settings found here:
http://tomcat.apache.org/tomcat-7.0-doc/windows-service-howto.html
I would just use the installer, it will make your life easier.
http://mirror.ox.ac.uk/sites/rsync.apache.org/tomcat/tomcat-7/v7.0.50/bin/apache-tomcat-7.0.50.exe