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https://issues.apache.org/jira/browse/CASSANDRA-1843?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12970392#action_12970392
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Hudson commented on CASSANDRA-1843:
-----------------------------------
Integrated in Cassandra-0.7 #70 (See
[https://hudson.apache.org/hudson/job/Cassandra-0.7/70/])
> Indexes: CF MBeans for automatic indexes are never unregistered when they are
> deleted.
> --------------------------------------------------------------------------------------
>
> Key: CASSANDRA-1843
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1843
> Project: Cassandra
> Issue Type: Bug
> Affects Versions: 0.7.0 rc 1
> Reporter: Jon Hermes
> Assignee: Jon Hermes
> Priority: Minor
> Fix For: 0.7.0
>
> Attachments: 1843.txt
>
>
> Add, delete, and add the same index and you should get a stacktrace to this
> effect:
> {noformat}
> java.lang.RuntimeException: javax.management.InstanceAlreadyExistsException:
> org.apache.cassandra.db:type=IndexColumnFamilies,keyspace=Keyspace1,columnfamily=Standard1.616765
> at
> org.apache.cassandra.db.ColumnFamilyStore.<init>(ColumnFamilyStore.java:259)
> at
> org.apache.cassandra.db.ColumnFamilyStore.createColumnFamilyStore(ColumnFamilyStore.java:447)
> at
> org.apache.cassandra.db.ColumnFamilyStore.addIndex(ColumnFamilyStore.java:304)
> at
> org.apache.cassandra.db.ColumnFamilyStore.reload(ColumnFamilyStore.java:193)
> at
> org.apache.cassandra.db.migration.UpdateColumnFamily.applyModels(UpdateColumnFamily.java:80)
> at org.apache.cassandra.db.migration.Migration.apply(Migration.java:171)
> at
> org.apache.cassandra.thrift.CassandraServer$2.call(CassandraServer.java:663)
> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
> at java.util.concurrent.FutureTask.run(FutureTask.java:138)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> at java.lang.Thread.run(Thread.java:662)
> Caused by: javax.management.InstanceAlreadyExistsException:
> org.apache.cassandra.db:type=IndexColumnFamilies,keyspace=Keyspace1,columnfamily=Standard1.616765
> 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.db.ColumnFamilyStore.<init>(ColumnFamilyStore.java:255)
> ... 11 more{noformat}
> CFS.reload() manages index deletion, but never unregisters the MBeans it
> creates during initialization.
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