# JMX for Compute Engine **URL:** \ **Category:** SonarQube Server / Community Build\ **Tags:** compute-engine, sonarqube\ **Created:** [June 15, 2020, 9:25am UTC](https://community.sonarsource.com/t/jmx-for-compute-engine/26394 "2020-06-15T09:25:37Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![andun06](https://avatars.discourse-cdn.com/v4/letter/a/57b2e6/32.png) [@andun06](https://community.sonarsource.com/u/andun06)\ **Post date:** [June 15, 2020, 9:25am UTC](https://community.sonarsource.com/t/jmx-for-compute-engine/26394/1 "2020-06-15T09:25:37Z")
Hello, Sonarqube 8.2.0.32929 Enterprise Edition I’m trying to enable remote JMX monitoring for CE. I added following lines to sonar.properties: sonar.ce.javaAdditionalOpts=-Dcom.sun.management.jmxremote=true -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.port=3332 Dcom.sun.management.jmxremote.rmi.port=3333 -Dcom.sun.management.jmxremote.password.file=/app/sonarqube-8.2.0.32929/conf/jmxremote.password -Dcom.sun.management.jmxremote.access.file=/app/sonarqube-8.2.0.32929/conf/jmxremote.access While running jconsole i receive: The connection did not succeed. I can see the open port on server with netstat. When i try to add item to zabbix (processing time), it gives me info: attempt to add a Permission to a readonly Permissions object. I’ve also tried changing sonar.ce.javaAdditionalOpts to sonar.ce.javaOpts, nothing changed. When I do same for webserver, it works good. My java on server: OpenJDK 11.0.6+10-LTS ---
**Author:** ![benoitsalotti](https://dub1.discourse-cdn.com/sonarsource/user_avatar/community.sonarsource.com/benoitsalotti/32/3981_2.png) [@benoitsalotti](https://community.sonarsource.com/u/benoitsalotti)\ **Post date:** [June 19, 2020, 9:41am UTC](https://community.sonarsource.com/t/jmx-for-compute-engine/26394/3 "2020-06-19T09:41:20Z")
Hello, Same error here trying to query MBeans locally with JMXTerm. Version of SonarQube is 8.3.1.34397 Enterprise Edition. Regards, Benoît ---
**Author:** ![dmeneses](https://dub1.discourse-cdn.com/sonarsource/user_avatar/community.sonarsource.com/dmeneses/32/2933_2.png) [@dmeneses](https://community.sonarsource.com/u/dmeneses)\ **Post date:** [June 19, 2020, 8:56pm UTC](https://community.sonarsource.com/t/jmx-for-compute-engine/26394/5 "2020-06-19T20:56:54Z")
I was able to reproduce the problem. I suspect that the Security Manager in the CE is interfering with the JMX server. Using `jconsole -debug` I get the following exception: ```auto java.lang.SecurityException: attempt to add a Permission to a readonly Permissions objectjava.lang.SecurityException: attempt to add a Permission to a readonly Permissions object at java.base/java.security.Permissions.add(Permissions.java:128) at java.base/java.security.Policy$UnsupportedEmptyCollection.add(Policy.java:843) at java.rmi/sun.rmi.server.LoaderHandler.getLoaderAccessControlContext(LoaderHandler.java:1005) at java.rmi/sun.rmi.server.LoaderHandler.lookupLoader(LoaderHandler.java:881) at java.rmi/sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:404) at java.rmi/sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:186) at java.rmi/java.rmi.server.RMIClassLoader$2.loadClass(RMIClassLoader.java:637) at java.rmi/java.rmi.server.RMIClassLoader.loadClass(RMIClassLoader.java:264) at java.rmi/sun.rmi.server.MarshalInputStream.resolveClass(MarshalInputStream.java:213) at java.base/java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1886) at java.base/java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1772) at java.base/java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2060) at java.base/java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1594) at java.base/java.io.ObjectInputStream.readObject(ObjectInputStream.java:430) at java.rmi/sun.rmi.server.UnicastRef.unmarshalValue(UnicastRef.java:322) at java.rmi/sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:339) at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:200) at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:197) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.rmi/sun.rmi.transport.Transport.serviceCall(Transport.java:196) at java.rmi/sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:562) at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:796) at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:67 7) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:676) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.lang.Thread.run(Thread.java:834) at java.rmi/sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java: 283) at java.rmi/sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:260) at java.rmi/sun.rmi.server.UnicastRef.invoke(UnicastRef.java:161) at jdk.remoteref/jdk.jmx.remote.internal.rmi.PRef.invoke(Unknown Source) at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl_Stub.isRegistered(Unknown Source) at java.management.rmi/javax.management.remote.rmi.RMIConnector$RemoteMBeanServerConnection.isRegistered(RMIConnector.java:865) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at jdk.jconsole/sun.tools.jconsole.ProxyClient$SnapshotInvocationHandler.invoke(ProxyClient.java:992) at jdk.proxy1/com.sun.proxy.jdk.proxy1.$Proxy0.isRegistered(Unknown Source) at jdk.jconsole/sun.tools.jconsole.ProxyClient.tryConnect(ProxyClient.java:380) at jdk.jconsole/sun.tools.jconsole.ProxyClient.connect(ProxyClient.java:313) at jdk.jconsole/sun.tools.jconsole.VMPanel$2.run(VMPanel.java:296) ``` This will require a deeper investigation. I created a ticket: [https://jira.sonarsource.com/browse/SONAR-13559](https://jira.sonarsource.com/browse/SONAR-13559) ---
**Author:** ![benoitsalotti](https://dub1.discourse-cdn.com/sonarsource/user_avatar/community.sonarsource.com/benoitsalotti/32/3981_2.png) [@benoitsalotti](https://community.sonarsource.com/u/benoitsalotti)\ **Post date:** [July 6, 2020, 8:13am UTC](https://community.sonarsource.com/t/jmx-for-compute-engine/26394/6 "2020-07-06T08:13:57Z")
Hi Duarte, Do you have news about the ticket ? Regards, Benoît ---
**Author:** ![ganncamp](https://dub1.discourse-cdn.com/sonarsource/user_avatar/community.sonarsource.com/ganncamp/32/1261_2.png) [@ganncamp](https://community.sonarsource.com/u/ganncamp)\ **Post date:** [July 6, 2020, 11:58am UTC](https://community.sonarsource.com/t/jmx-for-compute-engine/26394/7 "2020-07-06T11:58:03Z")
Hi Benoit, Feel free to vote for and watch the issue. Then Jira will automatically notify you when there’s movement.   😃 Ann ---
**Author:** ![benoitsalotti](https://dub1.discourse-cdn.com/sonarsource/user_avatar/community.sonarsource.com/benoitsalotti/32/3981_2.png) [@benoitsalotti](https://community.sonarsource.com/u/benoitsalotti)\ **Post date:** [July 6, 2020, 12:21pm UTC](https://community.sonarsource.com/t/jmx-for-compute-engine/26394/8 "2020-07-06T12:21:55Z")
Hi Ann, Sure I will do this 😉 Regards, Benoît ---
**Author:** ![murat](https://avatars.discourse-cdn.com/v4/letter/m/bc8723/32.png) [@murat](https://community.sonarsource.com/u/murat)\ **Post date:** [October 2, 2024, 10:48am UTC](https://community.sonarsource.com/t/jmx-for-compute-engine/26394/9 "2024-10-02T10:48:31Z")
Any updates on this ticket? ---
**Author:** ![ganncamp](https://dub1.discourse-cdn.com/sonarsource/user_avatar/community.sonarsource.com/ganncamp/32/1261_2.png) [@ganncamp](https://community.sonarsource.com/u/ganncamp)\ **Post date:** [October 2, 2024, 11:24am UTC](https://community.sonarsource.com/t/jmx-for-compute-engine/26394/10 "2024-10-02T11:24:14Z")
Hi @murat, The ticket in question is Closed/Fixed. You’ve resurrected a 4-year-old thread. Per [the FAQ](https://community.sonarsource.com/faq), please don’t do that. I’m going to close this now.   Ann ---
**Author:** ![ganncamp](https://dub1.discourse-cdn.com/sonarsource/user_avatar/community.sonarsource.com/ganncamp/32/1261_2.png) [@ganncamp](https://community.sonarsource.com/u/ganncamp)\ **Post date:** [October 2, 2024, 11:24am UTC](https://community.sonarsource.com/t/jmx-for-compute-engine/26394/11 "2024-10-02T11:24:17Z")