Re: Trouble registering an MBean with mbeans-descriptors.xml
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Konstantin, On 3/20/14, 6:38 PM, Konstantin Kolinko wrote: 2014-03-19 20:24 GMT+04:00 Christopher Schultz ch...@christopherschultz.net: I'm trying to write my own MBean, and I have it working: the bean is registered and I can browse it using jconsole, etc., call methods, etc. At one point during the process, I believe I had the beans-descriptors.xml file actually being loaded, so that my customized descriptions of attributes and methods were being shown in jconsole. At some point, I changed something and they are no longer showing up. It looks like I'm getting an introspected MBean description instead of the declared one I want. All the attributes for example are described as Attribute exposed for management. I've set org.apache.tomcat.util.modeler.level=ALL and the same for the Console logger, so I'm getting a steady stream of output from the modeler package, including a whole bunch of messages like this: FINER [main] org.apache.tomcat.util.modeler.Registry.loadDescriptors Finding descriptor org/apache/catalina/authenticator Great. What I don't see is a similar message for my own MBean. It doesn't look like Tomcat is ever trying to load the mbeans-descriptors.xml file for my MBean. Here's what I've got: 0. Tomcat 8.0-trunk 1. A JAR file in CATALINA_BASE/lib containing my MBean interface, class, and mbeans-descriptors.xml, all in the same package (imaginatively called mbeans), and a Filter class that creates the bean and registers it with the MBean server. 2. The Tomcat examples webapp, with modifications to WEB-INF/web.xml to load the aforementioned Filter. Here's the whole mbeans-descriptors.xml file: 1. Does your web application start, at all? Does you filter start? Yes to both. 2. How exactly are you registering your MBean? This code in the Filter's init() method: import javax.management.MBeanServer; ... MBeanServer server = getServer(); server.registerMBean(_stats, new ObjectName(Example:RequestStats=RequestStats,name= + filterName;)); Are you using Modeler API for that? (Registry.registerComponent()) No, I'm using JMX API. Maybe I wasn't clear enough initially: every single thing is working correctly: the Filter runs, registers the bean, and collects data properly. I can see everything in jconsole, etc. The only thing that is missing is all the descriptions for the operations and attributes that I have put into my mbeans-descriptors.xml file. All the descriptions say (Operation|Attribute) exposed for management. 3. Maybe run with a debugger? Yes, this is the conclusion I'm coming to. I've never run Tomcat under the Eclipse debugger before. Time to learn. ?xml version=1.0? mbeans-descriptors mbean name=RequestStats className=org.apache.catalina.mbeans.ClassNameMBean description=Server statistics and configuration domain=Catalina type=mbeans.RequestStats 4. I see that many mbeans have a group attribute. Yours does not have one. (Actually it seems that this attribute is optional and is ignored. There are no calls to ManagedBean.getGroup() except in ManagedBean.toString()). +1 I'm writing an example MBean for ApacheCon and I didn't want to include things that weren't absolutely necessary. 5. I hope that you do not have the second copy of your jar inside of your webapp. So that it shadows the one in the lib/ directory. I do not in fact have a second copy of that JAR in my web application. I'm using Tomcat's examples web application with only a modified web.xml to deploy the Filter. The Filter class itself is packaged in the JAR along with the MBean and exists only in CATALINA_BASE/lib. 6. Apparently many mbean descriptors are pre-loaded when Tomcat starts - in o.a.c.mbeans.MBeanUtils.createRegistry() I could swear that it was working when I started with my initial implementation. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1 Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBCAAGBQJTLINbAAoJEBzwKT+lPKRYgIsQAJ/HXcznaL+P/SqUEGeN0vsO esWi7O9m3LoCRze4vMsYPZ9RfsWzq/Bu4kxGg2Z0oVUnXniGF2sJytZGjwu6URcj iSLFGvBon4vGqoy3f6K2BPlo+34GvTdX7L4p0hlTby+Db/7uGxpiK94P4vSMPVgJ 4HJUS9HkIYdM40I/tvyy3YnWxGCY2mXUcPSgyrCuHzjWEcD46BRY8gUFyFyFbRUh Lqd/qNY9ASBf2xY6M4Jr7i0kjO58sjc6Gfltb9nvAmnDDjf657kZXAj4qgY/GXKG 4sLgjvhJb1ZHYATgw/bkwSuPkRpIilv9gqpE7+OT8XMN3wXrFD/KPvWThMj6QxT9 xrVmoQbCTuCNoOp6ncHWa7ZSsueMbKPx1hNeNVusHD+vuJinGmb4sTuONYc4oCCU 7nL95I2/9pjA8tGVCiuXxKUc7e4eR6/7ZkJ3ag7uo8MnvGIVQX4pDJT1lImJky2T TmHujlmhkO7KDqxSqtFhoBuD9ChJPwK4Qa3PjIWvj+8AYXrlOZQMcDaE2we7QsbN w8yTaSSxWypIe/gQyZu22A5a7NHs5JEI9YytvVdBYZUKBGT+GSvc8Oq8CYr8hRxP +1Dzxun0G9QKd/L/VNnZ213WECC+a+LLSBWWoazM6qstPA/wjJ2s+IR7DhhMpr6s xxCKscJgPjbkW+4kiZSO =3bzv -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For
Re: Trouble registering an MBean with mbeans-descriptors.xml
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 All, On 3/19/14, 12:24 PM, Christopher Schultz wrote: All, I'm trying to write my own MBean, and I have it working: the bean is registered and I can browse it using jconsole, etc., call methods, etc. At one point during the process, I believe I had the beans-descriptors.xml file actually being loaded, so that my customized descriptions of attributes and methods were being shown in jconsole. At some point, I changed something and they are no longer showing up. It looks like I'm getting an introspected MBean description instead of the declared one I want. All the attributes for example are described as Attribute exposed for management. I've set org.apache.tomcat.util.modeler.level=ALL and the same for the Console logger, so I'm getting a steady stream of output from the modeler package, including a whole bunch of messages like this: FINER [main] org.apache.tomcat.util.modeler.Registry.loadDescriptors Finding descriptor org/apache/catalina/authenticator Great. What I don't see is a similar message for my own MBean. It doesn't look like Tomcat is ever trying to load the mbeans-descriptors.xml file for my MBean. Here's what I've got: 0. Tomcat 8.0-trunk 1. A JAR file in CATALINA_BASE/lib containing my MBean interface, class, and mbeans-descriptors.xml, all in the same package (imaginatively called mbeans), and a Filter class that creates the bean and registers it with the MBean server. 2. The Tomcat examples webapp, with modifications to WEB-INF/web.xml to load the aforementioned Filter. Here's the whole mbeans-descriptors.xml file: ?xml version=1.0? mbeans-descriptors mbean name=RequestStats className=org.apache.catalina.mbeans.ClassNameMBean description=Server statistics and configuration domain=Catalina type=mbeans.RequestStats attribute name=className description=Fully qualified class name of the managed object type=java.lang.String writeable=false/ operation name=getProcessingTime description=Gets the total number of milliseconds spent processing requests. impact=INFO returnType=long /operation operation name=getRequestCount description=Gets the total number of requests processed. impact=INFO returnType=long /operation operation name=resetCounters description=Resets all counters. impact=ACTION returnType=void /operation /mbean /mbeans-descriptors I realize that two of the operations should probably be attributes instead, but it was about the time I changed from operation to attribute that things stopped working, so I rolled-back my changes a bit to back-track. Here's the contents of my mbean-example.jar file: Archive: mbeans-example.jar Length MethodSize Ratio Date Time CRC-32Name -- --- - -- 0 Stored0 0% 03-19-14 12:19 META-INF/ 103 Defl:N 90 13% 03-19-14 12:19 d2b59077 META-INF/MANIFEST.MF 0 Stored0 0% 03-19-14 11:57 filters/ 0 Stored0 0% 03-19-14 11:57 mbean/ 2387 Defl:N 1196 50% 03-19-14 12:19 2d7e415d filters/RequestStatsFilter.class 714 Defl:N 436 39% 03-19-14 11:57 7bdf9245 mbean/RequestStats.class 165 Defl:N 138 16% 03-19-14 11:57 041e1c7f mbean/RequestStatsMBean.class 1058 Defl:N 390 63% 03-19-14 12:19 ba6ca9b6 mbean/mbeans-descriptors.xml I can't see to find the text mbean.Request anywhere in the log files. I've become desperate and set org.apache.tomcat.level=ALL and org.apache.catalina.level=ALL to see if I can find anything. Setting the log level to ALL shows no attempt to even locate my mbeans-descriptors.xml file. Any pointers for where I can start looking? - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1 Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBCAAGBQJTKveiAAoJEBzwKT+lPKRYd+MQAJ/9UfsMatOnKlvsuJV+M4Cb nJdYj9o7Na7GLjsP1nYTaCv95vqj+IlFhsCGZ4GH4VCp4ffBPBRD7kijcn+VUORn pzfzbDP4qYLzM03SqTDNsx0Xk3mafd7ZppXqm+tYYy6h5IJNq+v+nN3K9SAThYhb OcD7FWAeCc0CdBQT57VQesRQggMzCg+bVmFNBLC8dEwQ7BWx1Lh9PNybASQN7jjG 26KmmpGExOnj7pVHlBCS9bkuEuUOR1R2B4lsKTLNniaPW9AznKNdgziPxa7FhXCr FWauW/yb0LmRFvSnHDhN+zTzHwcOK/qnKTf2dR3J2alsBPJs37e93q0jo+o/f4+q rurDaSsYCkVckhhaGW4kiijMiXgdp2o6F0mMpId3AwGa/jqbQdfo8KqoQLz1Wcuq D86fGX/WJdwwuZorkAvCBCP1ttU7xhFwbzBVE8VDHf+nDiA4Ggp1KBFQ3o7PRYWu QD/7jqOiVNkiTBZomWIlgn5J2K8M8wgNlw1nRiSmLc64WFDRFGFNN3y4Va9qwX0F 6lIqtF01/X5iI2i4LsjKrfWK40OuVuqMyze5wJziLj6x5FTnjiAHie5afUQn3Jwb o+W+5L9qL5WKQMEHS+yO/O/u/8McFg9JTDXE7hHOlGNJQM2AMmUWp5k+toxPCewL 9CJt+D/n+N2LPkJ/cege =H4+B -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Trouble registering an MBean with mbeans-descriptors.xml
2014-03-19 20:24 GMT+04:00 Christopher Schultz ch...@christopherschultz.net: I'm trying to write my own MBean, and I have it working: the bean is registered and I can browse it using jconsole, etc., call methods, etc. At one point during the process, I believe I had the beans-descriptors.xml file actually being loaded, so that my customized descriptions of attributes and methods were being shown in jconsole. At some point, I changed something and they are no longer showing up. It looks like I'm getting an introspected MBean description instead of the declared one I want. All the attributes for example are described as Attribute exposed for management. I've set org.apache.tomcat.util.modeler.level=ALL and the same for the Console logger, so I'm getting a steady stream of output from the modeler package, including a whole bunch of messages like this: FINER [main] org.apache.tomcat.util.modeler.Registry.loadDescriptors Finding descriptor org/apache/catalina/authenticator Great. What I don't see is a similar message for my own MBean. It doesn't look like Tomcat is ever trying to load the mbeans-descriptors.xml file for my MBean. Here's what I've got: 0. Tomcat 8.0-trunk 1. A JAR file in CATALINA_BASE/lib containing my MBean interface, class, and mbeans-descriptors.xml, all in the same package (imaginatively called mbeans), and a Filter class that creates the bean and registers it with the MBean server. 2. The Tomcat examples webapp, with modifications to WEB-INF/web.xml to load the aforementioned Filter. Here's the whole mbeans-descriptors.xml file: 1. Does your web application start, at all? Does you filter start? 2. How exactly are you registering your MBean? Are you using Modeler API for that? (Registry.registerComponent()) 3. Maybe run with a debugger? ?xml version=1.0? mbeans-descriptors mbean name=RequestStats className=org.apache.catalina.mbeans.ClassNameMBean description=Server statistics and configuration domain=Catalina type=mbeans.RequestStats 4. I see that many mbeans have a group attribute. Yours does not have one. (Actually it seems that this attribute is optional and is ignored. There are no calls to ManagedBean.getGroup() except in ManagedBean.toString()). 5. I hope that you do not have the second copy of your jar inside of your webapp. So that it shadows the one in the lib/ directory. 6. Apparently many mbean descriptors are pre-loaded when Tomcat starts - in o.a.c.mbeans.MBeanUtils.createRegistry() Best regards, Konstantin Kolinko - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Trouble registering an MBean with mbeans-descriptors.xml
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 All, I'm trying to write my own MBean, and I have it working: the bean is registered and I can browse it using jconsole, etc., call methods, etc. At one point during the process, I believe I had the beans-descriptors.xml file actually being loaded, so that my customized descriptions of attributes and methods were being shown in jconsole. At some point, I changed something and they are no longer showing up. It looks like I'm getting an introspected MBean description instead of the declared one I want. All the attributes for example are described as Attribute exposed for management. I've set org.apache.tomcat.util.modeler.level=ALL and the same for the Console logger, so I'm getting a steady stream of output from the modeler package, including a whole bunch of messages like this: FINER [main] org.apache.tomcat.util.modeler.Registry.loadDescriptors Finding descriptor org/apache/catalina/authenticator Great. What I don't see is a similar message for my own MBean. It doesn't look like Tomcat is ever trying to load the mbeans-descriptors.xml file for my MBean. Here's what I've got: 0. Tomcat 8.0-trunk 1. A JAR file in CATALINA_BASE/lib containing my MBean interface, class, and mbeans-descriptors.xml, all in the same package (imaginatively called mbeans), and a Filter class that creates the bean and registers it with the MBean server. 2. The Tomcat examples webapp, with modifications to WEB-INF/web.xml to load the aforementioned Filter. Here's the whole mbeans-descriptors.xml file: ?xml version=1.0? mbeans-descriptors mbean name=RequestStats className=org.apache.catalina.mbeans.ClassNameMBean description=Server statistics and configuration domain=Catalina type=mbeans.RequestStats attribute name=className description=Fully qualified class name of the managed object type=java.lang.String writeable=false/ operation name=getProcessingTime description=Gets the total number of milliseconds spent processing requests. impact=INFO returnType=long /operation operation name=getRequestCount description=Gets the total number of requests processed. impact=INFO returnType=long /operation operation name=resetCounters description=Resets all counters. impact=ACTION returnType=void /operation /mbean /mbeans-descriptors I realize that two of the operations should probably be attributes instead, but it was about the time I changed from operation to attribute that things stopped working, so I rolled-back my changes a bit to back-track. Here's the contents of my mbean-example.jar file: Archive: mbeans-example.jar Length MethodSize Ratio Date Time CRC-32Name - -- --- - -- 0 Stored0 0% 03-19-14 12:19 META-INF/ 103 Defl:N 90 13% 03-19-14 12:19 d2b59077 META-INF/MANIFEST.MF 0 Stored0 0% 03-19-14 11:57 filters/ 0 Stored0 0% 03-19-14 11:57 mbean/ 2387 Defl:N 1196 50% 03-19-14 12:19 2d7e415d filters/RequestStatsFilter.class 714 Defl:N 436 39% 03-19-14 11:57 7bdf9245 mbean/RequestStats.class 165 Defl:N 138 16% 03-19-14 11:57 041e1c7f mbean/RequestStatsMBean.class 1058 Defl:N 390 63% 03-19-14 12:19 ba6ca9b6 mbean/mbeans-descriptors.xml I can't see to find the text mbean.Request anywhere in the log files. I've become desperate and set org.apache.tomcat.level=ALL and org.apache.catalina.level=ALL to see if I can find anything. Can anyone shed some light on why my mbeans-descriptors.xml file isn't being loaded -- or even looked-for? - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1 Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBCAAGBQJTKcTAAAoJEBzwKT+lPKRYPCgP/RCphdm99mvtPCKnca7pDebU rTY/9rg8GnUsvIaZk5n5AH4yDIp4rVQUtNHUdX7UniAgkMkMzj78djC2a4rlOGpg c9n872banvQzPnOf5zEC0/WfKQsW/qD0JeO1+mROTVRuPO119n7K2p6YxZxTD870 0qN9IlE1qd5q0mOI7gqP0YS6qS77OaYUyb8IFfiyTyuKzuHJyz+SodR7RasRQH2y ABUaKbyRzH1kj7WIOgBFVBiNfGUF9XPHhrqm+gEDGuX3+0oQRSay+B98mSw0FsEB Sj9vjKtYfKMnT4amvC43Df2yqSN+qyeDx/nyGQVFif55XPbe/Zw0LztHBLjmlKiI jl8EQPfzhrFO7V2tC1WZkjz2+bWDrz9YJJ18s6NSpb+zd8HCnDnRh3WvD1+3+yP5 fPV4IgH3D1MNhPuY6ek5v7Pl6LZ4914+h3zesYeZADURCtxaIatoBltnoCe0wuh7 Bh2qzOklYrlGpQW2DKjGmydJwjq+MdYVimzCs/ZuovULJLxFOTYRUsy5I2UYedGh qZF4hDkrZUtmDUUk+fZt0K3yO4ARcwNzMRT0bCWC4ue9+yqDfX+cwBCuv84zdZlY 65WVKgW9xF7SaHh6mb63D2Mw1vgn6Y3350XoE8kABbfj84zcJzCr8BYdbtKO9GG8 32b0D79cvbvM1ki8NjRA =1oNm -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail:
