My suspicion would be that it has more to do with "rare case when running with 5000 CFs" than "1.0 regression."
On Mon, Oct 3, 2011 at 5:00 PM, Ramesh Natarajan <rames...@gmail.com> wrote: > We have about 5000 column family and when we run the nodetool cfstats it > throws out this exception... this is running 1.0.0-rc1 > This seems to work on 0.8.6. Is this a bug in 1.0.0? > > thanks > Ramesh > Keyspace: system > Read Count: 28 > Read Latency: 5.8675 ms. > Write Count: 3 > Write Latency: 0.166 ms. > Pending Tasks: 0 > Column Family: Schema > SSTable count: 4 > Space used (live): 4293758276 > Space used (total): 4293758276 > Number of Keys (estimate): 5376 > Memtable Columns Count: 0 > Memtable Data Size: 0 > Memtable Switch Count: 0 > Read Count: 3 > Read Latency: NaN ms. > Write Count: 0 > Write Latency: NaN ms. > Pending Tasks: 0 > Key cache capacity: 53 > Key cache size: 2 > Key cache hit rate: NaN > Row cache: disabled > Compacted row minimum size: 104 > Compacted row maximum size: 1955666 > Compacted row mean size: 1508515 > Column Family: HintsColumnFamily > SSTable count: 0 > Space used (live): 0 > Space used (total): 0 > Number of Keys (estimate): 0 > Memtable Columns Count: 0 > Memtable Data Size: 0 > Memtable Switch Count: 0 > Read Count: 5 > Read Latency: NaN ms. > Write Count: 0 > Write Latency: NaN ms. > Pending Tasks: 0 > Key cache capacity: 1 > Key cache size: 0 > Key cache hit rate: NaN > Row cache: disabled > Compacted row minimum size: 0 > Compacted row maximum size: 0 > Compacted row mean size: 0 > Column Family: LocationInfo > SSTable count: 1 > Space used (live): 6947 > Space used (total): 6947 > Number of Keys (estimate): 128 > Memtable Columns Count: 0 > Memtable Data Size: 0 > Memtable Switch Count: 2 > Read Count: 20 > Read Latency: NaN ms. > Write Count: 3 > Write Latency: NaN ms. > Pending Tasks: 0 > Key cache capacity: 1 > Key cache size: 1 > Key cache hit rate: NaN > Row cache: disabled > Compacted row minimum size: 73 > Compacted row maximum size: 258 > Compacted row mean size: 185 > Column Family: Migrations > SSTable count: 4 > Space used (live): 4315909643 > Space used (total): 4315909643 > Number of Keys (estimate): 512 > Memtable Columns Count: 0 > Memtable Data Size: 0 > Memtable Switch Count: 0 > Read Count: 0 > Read Latency: NaN ms. > Write Count: 0 > Write Latency: NaN ms. > Pending Tasks: 0 > Key cache capacity: 5 > Key cache size: 0 > Key cache hit rate: NaN > Row cache: disabled > Compacted row minimum size: 5839589 > Compacted row maximum size: 9223372036854775807 > Exception in thread "main" java.lang.IllegalStateException: Unable to > compute ceiling for max when histogram overflowed > at > org.apache.cassandra.utils.EstimatedHistogram.mean(EstimatedHistogram.java:170) > at > org.apache.cassandra.db.DataTracker.getMeanRowSize(DataTracker.java:395) > at > org.apache.cassandra.db.ColumnFamilyStore.getMeanRowSize(ColumnFamilyStore.java:275) > at sun.reflect.GeneratedMethodAccessor24.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at > com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:93) > at > com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:27) > at > com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208) > at > com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:65) > at > com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:216) > at > com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666) > at > com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638) > at > javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1404) > at > javax.management.remote.rmi.RMIConnectionImpl.access$200(RMIConnectionImpl.java:72) > at > javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1265) > at > javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1360) > at > javax.management.remote.rmi.RMIConnectionImpl.getAttribute(RMIConnectionImpl.java:600) > at sun.reflect.GeneratedMethodAccessor45.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at > sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:305) > at sun.rmi.transport.Transport$1.run(Transport.java:159) > at java.security.AccessController.doPrivileged(Native Method) > at sun.rmi.transport.Transport.serviceCall(Transport.java:155) > at > sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535) > at > sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790) > at > sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649) > at > java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) > at java.lang.Thread.run(Thread.java:662) > -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of DataStax, the source for professional Cassandra support http://www.datastax.com
