[AMQ-5035] deleting durable subscriber exception

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 5.9.0
• Fix Version/s: 5.10.0
• Component/s: Broker, Job Scheduler
• Assignee: Timothy A. Bish
• Reporter: Minh Tran
• Created: 08/Feb/14 12:41
• Updated: 02/Dec/19 11:42
• Resolved: 10/Feb/14 23:16

Description

refer to http://activemq.2283324.n4.nabble.com/deleting-durable-subscriber-exception-tp4677521.html

getting following exception when deleting a durable subscriber with schedulerSupport set to true on the broker

2014-02-06 15:25:44,042 | WARN | /admin/deleteSubscriber.action | org.eclipse.jetty.servlet.ServletHandler | qtp1100010806-60
java.lang.ClassCastException: org.apache.activemq.broker.scheduler.SchedulerBroker cannot be cast to org.apache.activemq.broker.region.RegionBroker
at org.apache.activemq.advisory.AdvisoryBroker.removeSubscription(AdvisoryBroker.java:280)
at org.apache.activemq.broker.BrokerFilter.removeSubscription(BrokerFilter.java:112)
at org.apache.activemq.broker.BrokerFilter.removeSubscription(BrokerFilter.java:112)
at org.apache.activemq.broker.BrokerFilter.removeSubscription(BrokerFilter.java:112)
at org.apache.activemq.broker.BrokerFilter.removeSubscription(BrokerFilter.java:112)
at org.apache.activemq.broker.MutableBrokerFilter.removeSubscription(MutableBrokerFilter.java:117)
at org.apache.activemq.broker.jmx.BrokerView.destroyDurableSubscriber(BrokerView.java:430)
at org.apache.activemq.web.controller.DeleteSubscriber.handleRequest(DeleteSubscriber.java:38)
at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:693)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:652)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1320)
at org.apache.activemq.web.AuditFilter.doFilter(AuditFilter.java:59)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1291)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1291)
at org.apache.activemq.web.filter.ApplicationContextFilter.doFilter(ApplicationContextFilter.java:102)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1291)
at com.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent(SiteMeshFilter.java:129)
at com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:77)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1291)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:443)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:521)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1044)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:372)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:189)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:978)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:521)
at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
at org.eclipse.jetty.server.Server.handle(Server.java:367)
at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:486)
at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:926)
at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:988)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:640)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:628)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
at java.lang.Thread.run(Thread.java:695)

To reproduce:
1. Download fresh copy and install
2. Edit conf/activemq.xml and change broker line to
<broker xmlns="http://activemq.apache.org/schema/core" brokerName="localhost" dataDirectory="${activemq.data}" schedulerSupport="true">

3. Go to admin console and create a topic, http://localhost:8161/admin/topics.jsp
4. Go to admin console and create durable subscriber to topic above http://localhost:8161/admin/subscribers.jsp
5. Delete the durable subscriber using link on same page and it will fail

Repeat all steps above but this time set schedulerSupport=false. Then it will delete the durable without any errors.