Hi there, i made some changes to the configuration file to increase the checkpoint timeout than after the restart i had a series of this errors, once for each channel.
31 Jul 2014 08:11:22,180 ERROR [lifecycleSupervisor-1-3] (org.apache.flume.instrumentation.MonitoredCounterGroup.register:113) - Failed to register monitored counter group for type: CHANNEL, name: analyticInstallChannel javax.management.InstanceAlreadyExistsException: org.apache.flume.channel:type=analyticInstallChannel at com.sun.jmx.mbeanserver.Repository.addMBean(Repository.java:453) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.internal_addObject(DefaultMBeanServerInterceptor.java:1484) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerDynamicMBean(DefaultMBeanServerInterceptor.java:963) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerObject(DefaultMBeanServerInterceptor.java:917) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBean(DefaultMBeanServerInterceptor.java:312) at com.sun.jmx.mbeanserver.JmxMBeanServer.registerMBean(JmxMBeanServer.java:483) at org.apache.flume.instrumentation.MonitoredCounterGroup.register(MonitoredCounterGroup.java:108) at org.apache.flume.instrumentation.MonitoredCounterGroup.start(MonitoredCounterGroup.java:88) at org.apache.flume.channel.file.FileChannel.start(FileChannel.java:319) at org.apache.flume.lifecycle.LifecycleSupervisor$MonitorRunnable.run(LifecycleSupervisor.java:251) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439) at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:204) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918) at java.lang.Thread.run(Thread.java:662) I really can't get the reason Thanks Saverio
