Hi,
I have just installed Cassandra 0.6-beta3 on Windows 7 and have it running on the machine (with no schema, so using the default column families etc). Via the Cassandra-cli, I can type: "Describe keyspace Keyspace1" and I see the default keyspace described (all good) If I type: "Describe keyspace keyspace1" <note the capitalisation change on "keyspace1"> Then and I see this error in the cli: Exception Internal error processing describe_keyspace And I see this exception error/trace in the command window where Cassandra is running: ERROR 12:44:14,731 Internal error processing describe_keyspace java.lang.AssertionError at org.apache.cassandra.config.DatabaseDescriptor.getTableMetaData(Datab aseDescriptor.java:900) at org.apache.cassandra.thrift.CassandraServer.describe_keyspace(Cassand raServer.java:533) at org.apache.cassandra.thrift.Cassandra$Processor$describe_keyspace.pro cess(Cassandra.java:1811) at org.apache.cassandra.thrift.Cassandra$Processor.process(Cassandra.jav a:1128) at org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadP oolServer.java:253) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExec utor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor .java:908) at java.lang.Thread.run(Thread.java:619) INFO 13:15:17,270 LocationInfo has reached its threshold; switching in a fresh Memtable at CommitLogContext(file='c:\CassandraData\commitlog\CommitLog-12694725 17323.log', position=719) INFO 13:15:17,271 Enqueuing flush of Memtable(LocationInfo)@27106317 INFO 13:15:17,273 Writing Memtable(LocationInfo)@27106317 INFO 13:15:17,705 Completed flushing c:\CassandraData\data\system\LocationInfo- b-1-Data.db Regards, Raymond.