MyMBean depending on MyOtherMBean issues

[frankthetank]

Hi!

I have two MBeans, MyMBean and MyOtherMBean and I want the first to depend on the latter.

Each is in its own sar and both have services. (the faq mentions non-service issues)
I have my mbeans mapped in their jboss-service.xml.
Everything works fine if I hot-deploy it and they all show up in the jmx-console.

But when I restart the server, I get

javax.management.InstanceNotFoundException: com.example.mymbean:service=MyService is not registered

I have been surfing the web for the better of two days trying to figure out what I am doing wrong.

I am probably missing something really simple and any help is appreciated.

Thanks!

[peterj]

For the MyMBean, do you have a depends clause that references MyOtherMBean? If not, add one. If this doesn't help, If so, please post the *-service.xml files for both mbeans.

[frankthetank]

Thanks for the reply.

Yes, I have the depends in the MyMBean's *-service.xml.

here are the contents:
MyOtherMBean jboss-service.xml

<?xml version="1.0" encoding="UTF-8"?>

<server>
 <mbean
 code="com.example.myothermbean.MyOtherMBean"
 name="com.example.myothermbean:service=MyOtherMBean">

 <mbean>
 <description>MyOtherMBean</description>
 <class>com.example.myothermbean.MyOtherMBean</class>

 <operation>
 <description>JBoss lifecycle operation</description>
 <name>start</name>
 <return-type>void</return-type>
 </operation>
 <operation>
 <description>JBoss lifecycle operation</description>
 <name>stop</name>
 <return-type>void</return-type>
 </operation>
 <operation>
 <description>JBoss lifecycle operation</description>
 <name>create</name>
 <return-type>void</return-type>
 </operation>
 <operation>
 <description>JBoss lifecycle operation</description>
 <name>destroy</name>
 <return-type>void</return-type>
 </operation>

 <attribute access='read-write' getMethod='getStarted' setMethod='setStarted'>
 <description>Server stated.</description>
 <name>Started</name>
 <type>boolean</type>
 </attribute>

 </mbean>
 </mbean>
</server>

MyMBean

<?xml version="1.0" encoding="UTF-8"?>

<server>
 <mbean
 code="com.example.mymbean.MyMBean"
 name="com.example.mymbean:service=MyMBean">

<depends>com.example.myothermbean:service=MyOtherMBean</depends>

 <mbean>
 <description>MyMBean</description>
 <class>com.example.mymbean.MyMBean</class>
 <operation>
 <description>JBoss lifecycle operation</description>
 <name>start</name>
 <return-type>void</return-type>
 </operation>
 <operation>
 <description>JBoss lifecycle operation</description>
 <name>stop</name>
 <return-type>void</return-type>
 </operation>
 <operation>
 <description>JBoss lifecycle operation</description>
 <name>create</name>
 <return-type>void</return-type>
 </operation>
 <operation>
 <description>JBoss lifecycle operation</description>
 <name>destroy</name>
 <return-type>void</return-type>
 </operation>
 </mbean>
 </mbean>
</server>

Again, thanks!

[peterj]

Which version of JBossAS are you using?

[frankthetank]

4.2.2.GA standard binaries.

I had also thought it might have something to do with our edited verion of JBoss, but even a fresh one off the download server has the issues.

From the console I can see that the dependend ist started right before the provider.

Maybe it will help if I explain what the actual intention is:
I am writing some PoofOfConcepts and have two MBeans.

* ExtendedServer which is intended to extend the functionality of the JBOss ServerImpl MBean. All our clients currently listen and poll the ServerImpl MBean for the servers state. The state of the server and the notifications define if the clients can connect or not.
The ExtendedServer simply offers the ability to simulate server states and thus f.i. kick all the clients off the server for maintenance work.

* BroadcasterMBean registers itself onto the ExtendedServer and broadcasts the notifications it receives from the ExtendedServer into the Lan.

As each has it's own SAR the BroadcasterMBean depends on the ExtendedServer.

So maybe I am missing something else?

[dimitris]

You may want to take a look here, too:

http://wiki.jboss.org/wiki/Wiki.jsp?page=BarrierController

[frankthetank]

Thanks Dimitris!

Though I still have my dependency problem.