I have a 4 cassandra 0.8.1 nodes in the cluster, one node crashes and I'm trying to restart it.
But I encounter the following errors during the startup, is this a known bug? DEBUG [main] 2011-09-08 20:26:17,959 Table.java (line 305) Initializing system.NodeIdInfo DEBUG [main] 2011-09-08 20:26:17,963 ColumnFamilyStore.java (line 264) Starting CFS NodeIdInfo DEBUG [main] 2011-09-08 20:26:17,967 AutoSavingCache.java (line 175) KeyCache capacity for NodeIdInfo is 1 ERROR [main] 2011-09-08 20:26:17,969 AbstractCassandraDaemon.java (line 332) Exception encountered during startup. java.lang.RuntimeException: javax.management.InstanceAlreadyExistsException: org.apache.cassandra.db:type=ColumnFamilies,keyspace=system,columnfamily=NodeIdInfo at org.apache.cassandra.db.ColumnFamilyStore.<init>(ColumnFamilyStore.java:315) at org.apache.cassandra.db.ColumnFamilyStore.createColumnFamilyStore(ColumnFamilyStore.java:455) 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.db.SystemTable.checkHealth(SystemTable.java:212) at org.apache.cassandra.service.AbstractCassandraDaemon.setup(AbstractCassandraDaemon.java:128) at org.apache.cassandra.service.AbstractCassandraDaemon.activate(AbstractCassandraDaemon.java:315) at org.apache.cassandra.thrift.CassandraDaemon.main(CassandraDaemon.java:80) Caused by: javax.management.InstanceAlreadyExistsException: org.apache.cassandra.db:type=ColumnFamilies,keyspace=system,columnfamily=NodeIdInfo 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:311) ... 9 more Thanks. -- Dikang Gu 0086 - 18611140205
