Hi,
Getting the following exception when attempting to delete the durable
subscriber in the admin console. Using 5.9.0.
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$3.run(QueuedThreadPool.java:543)
at java.lang.Thread.run(Thread.java:695)
If I turn off the scheduler in activemq.xml, then this problem goes away so
it's related to the scheduler. This is a very nasty bug because without the
ability to delete durable subscribers, dormant durables will eventually bring
down the server. The offlineDurableSubcriberTimeout doesn't seem to kill the
durable subscriber either. Below is a config I use on the broker.
<broker xmlns="http://activemq.apache.org/schema/core"; brokerName="localhost"
dataDirectory="${activemq.data}" offlineDurableSubscriberTimeout="172800000"
offlineDurableSubscriberTaskSchedule="3600000" schedulerSupport="true"
useJmx="true">
