InstanceAlreadyExistsException
------------------------------

                 Key: CASSANDRA-650
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-650
             Project: Cassandra
          Issue Type: Bug
          Components: Core
    Affects Versions: 0.5
            Reporter: Chris Goffinet
             Fix For: 0.5


Was testing out 05 last night, and got this error, can't boot up a node because 
of it. I'll be happy to debug if more info is needed, it's quite late here.

ERROR [main] 2009-12-22 21:52:14,167 StorageService.java (line 129) Exception 
was generated at : 12/22/2009 21:52:14 on thread main
javax.management.InstanceAlreadyExistsException: 
org.apache.cassandra.concurrent:type=CONSISTENCY-MANAGER
java.lang.RuntimeException: javax.management.InstanceAlreadyExistsException: 
org.apache.cassandra.concurrent:type=CONSISTENCY-MANAGER
        at 
org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor.<init>(DebuggableThreadPoolExecutor.java:63)
        at 
org.apache.cassandra.service.StorageService.<init>(StorageService.java:151)
        at 
org.apache.cassandra.service.StorageService.instance(StorageService.java:125)
        at 
org.apache.cassandra.locator.RackAwareStrategy.<init>(RackAwareStrategy.java:47)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at 
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
        at 
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
        at 
org.apache.cassandra.service.StorageService.getReplicationStrategy(StorageService.java:244)
        at 
org.apache.cassandra.service.StorageService.<init>(StorageService.java:233)
        at 
org.apache.cassandra.service.StorageService.instance(StorageService.java:125)
        at 
org.apache.cassandra.service.CassandraServer.<init>(CassandraServer.java:58)
        at 
org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:93)
        at 
org.apache.cassandra.service.CassandraDaemon.init(CassandraDaemon.java:135)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at 
org.apache.commons.daemon.support.DaemonLoader.load(DaemonLoader.java:160)
Caused by: javax.management.InstanceAlreadyExistsException: 
org.apache.cassandra.concurrent:type=CONSISTENCY-MANAGER
        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:482)
        at 
org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor.<init>(DebuggableThreadPoolExecutor.java:59)
        ... 18 more

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