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From "Brandon Williams (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-3355) Race trying to register CFS MBean
Date Wed, 12 Oct 2011 23:47:11 GMT
Race trying to register CFS MBean
---------------------------------

                 Key: CASSANDRA-3355
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3355
             Project: Cassandra
          Issue Type: Bug
          Components: Core
            Reporter: Brandon Williams
            Priority: Minor


I heard reports of this multiple times, here's an example:

{noformat}
 INFO 16:08:23,672 reading saved cache /var/lib/cassandra/saved_caches/spider-InterfaceDailyCompressed-KeyCache
 INFO 16:08:23,995 Opening /var/lib/cassandra/data/spider/InterfaceDailyCompressed-g-63
 INFO 16:08:24,253 Opening /var/lib/cassandra/data/spider/InterfaceDailyCompressed-g-75
 INFO 16:08:24,422 Opening /var/lib/cassandra/data/spider/InterfaceDailyCompressed-g-113
 INFO 16:08:24,443 Opening /var/lib/cassandra/data/spider/InterfaceDailyCompressed-g-36
 INFO 16:08:24,756 Opening /var/lib/cassandra/data/spider/InterfaceDailyCompressed-g-102
 INFO 16:08:24,789 Opening /var/lib/cassandra/data/spider/InterfaceDailyCompressed-g-58
ERROR 16:08:25,105 Exception encountered during startup.
java.lang.RuntimeException: javax.management.InstanceAlreadyExistsException: org.apache.cassandra.db:type=ColumnFamilies,keyspace=spider,columnfamily=InterfaceDailyCompressed
        at org.apache.cassandra.db.ColumnFamilyStore.<init>(ColumnFamilyStore.java:303)
        at org.apache.cassandra.db.ColumnFamilyStore.createColumnFamilyStore(ColumnFamilyStore.java:465)
        at org.apache.cassandra.db.ColumnFamilyStore.createColumnFamilyStore(ColumnFamilyStore.java:435)
        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:187)
        at org.apache.cassandra.service.AbstractCassandraDaemon.activate(AbstractCassandraDaemon.java:341)
        at org.apache.cassandra.thrift.CassandraDaemon.main(CassandraDaemon.java:97)
Caused by: javax.management.InstanceAlreadyExistsException: org.apache.cassandra.db:type=ColumnFamilies,keyspace=spider,columnfamily=InterfaceDailyCompressed
        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:299)
        ... 8 more
Exception encountered during startup.
java.lang.RuntimeException: javax.management.InstanceAlreadyExistsException: org.apache.cassandra.db:type=ColumnFamilies,keyspace=spider,columnfamily=InterfaceDailyCompressed
        at org.apache.cassandra.db.ColumnFamilyStore.<init>(ColumnFamilyStore.java:303)
        at org.apache.cassandra.db.ColumnFamilyStore.createColumnFamilyStore(ColumnFamilyStore.java:465)
        at org.apache.cassandra.db.ColumnFamilyStore.createColumnFamilyStore(ColumnFamilyStore.java:435)
        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:187)
        at org.apache.cassandra.service.AbstractCassandraDaemon.activate(AbstractCassandraDaemon.java:341)
        at org.apache.cassandra.thrift.CassandraDaemon.main(CassandraDaemon.java:97)
Caused by: javax.management.InstanceAlreadyExistsException: org.apache.cassandra.db:type=ColumnFamilies,keyspace=spider,columnfamily=InterfaceDailyCompressed
        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:299)
        ... 8 more
{noformat}

This wouldn't be too big of a deal, except it's actually preventing startup which kind of
sucks if you're expecting cassandra to start on the first try from an init script.

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