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From Eric Czech <e...@nextbigsound.com>
Subject Fatal startup error -- Instance already exists
Date Sun, 04 Sep 2011 05:03:48 GMT
Hi,

I recently upgraded 10 nodes from 7.5 to 8.4 and 9 of them work now but on
one node I'm getting an exception on startup that I can't seem to fix.  Has
anyone seen this before or have any suggestions as to how to correct the
issue here?  Here's the exception I'm getting:

java.lang.RuntimeException: javax.management.InstanceAlreadyExistsException:
org.apache.cassandra.db:type=ColumnFamilies,keyspace=Keyspace1,columnfamily=<CF_Name>
at
org.apache.cassandra.db.ColumnFamilyStore.<init>(ColumnFamilyStore.java:315)
 at
org.apache.cassandra.db.ColumnFamilyStore.createColumnFamilyStore(ColumnFamilyStore.java:466)
at
org.apache.cassandra.db.ColumnFamilyStore.createColumnFamilyStore(ColumnFamilyStore.java:436)
 at org.apache.cassandra.db.Table.initCf(Table.java:369)
at org.apache.cassandra.db.Table.<init>(Table.java:306)
 at org.apache.cassandra.db.Table.open(Table.java:111)
at
org.apache.cassandra.service.AbstractCassandraDaemon.setup(AbstractCassandraDaemon.java:182)
 at
org.apache.cassandra.service.AbstractCassandraDaemon.activate(AbstractCassandraDaemon.java:336)
at org.apache.cassandra.thrift.CassandraDaemon.main(CassandraDaemon.java:91)
Caused by: javax.management.InstanceAlreadyExistsException:
org.apache.cassandra.db:type=ColumnFamilies,keyspace=Keyspace1,columnfamily=<CF_Name>
at com.sun.jmx.mbeanserver.Repository.addMBean(Repository.java:467)
 at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.internal_addObject(DefaultMBeanServerInterceptor.java:1520)
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerDynamicMBean(DefaultMBeanServerInterceptor.java:986)
 at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerObject(DefaultMBeanServerInterceptor.java:938)
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBean(DefaultMBeanServerInterceptor.java:330)
 at
com.sun.jmx.mbeanserver.JmxMBeanServer.registerMBean(JmxMBeanServer.java:516)
at
org.apache.cassandra.db.ColumnFamilyStore.<init>(ColumnFamilyStore.java:311)

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