>From output.log with debug enable i have more information.
... DEBUG 15:29:58,885 collecting 0 of 2147483647: users:bloom_filter_fp_chance:false:8@1363254809666000 DEBUG 15:29:58,885 collecting 1 of 2147483647: users:caching:false:9@1363254809666000 DEBUG 15:29:58,886 collecting 2 of 2147483647: users:column_aliases:false:2@1363254809666000 DEBUG 15:29:58,886 collecting 3 of 2147483647: users:comment:false:0@1363254809666000 DEBUG 15:29:58,886 collecting 4 of 2147483647: users:compaction_strategy_class:false:63@1363254809666000 DEBUG 15:29:58,887 collecting 5 of 2147483647: users:compaction_strategy_options:false:2@1363254809666000 DEBUG 15:29:58,887 collecting 6 of 2147483647: users:comparator:false:87@1363254809666000 DEBUG 15:29:58,888 collecting 7 of 2147483647: users:compression_parameters:false:75@1363254809666000 DEBUG 15:29:58,888 collecting 8 of 2147483647: users:default_validator:false:41@1363254809666000 DEBUG 15:29:58,888 collecting 9 of 2147483647: users:gc_grace_seconds:false:4@1363254809666000 DEBUG 15:29:58,889 collecting 10 of 2147483647: users:key_aliases:false:8@1363254809666000 DEBUG 15:29:58,889 collecting 11 of 2147483647: users:key_validator:false:40@1363254809666000 DEBUG 15:29:58,890 collecting 12 of 2147483647: users:local_read_repair_chance:false:8@1363254809666000 DEBUG 15:29:58,890 collecting 13 of 2147483647: users:max_compaction_threshold:false:4@1363254809666000 DEBUG 15:29:58,890 collecting 14 of 2147483647: users:min_compaction_threshold:false:4@1363254809666000 DEBUG 15:29:58,891 collecting 15 of 2147483647: users:populate_io_cache_on_flush:false:1@1363254809666000 DEBUG 15:29:58,891 collecting 16 of 2147483647: users:read_repair_chance:false:8@1363254809666000 DEBUG 15:29:58,891 collecting 17 of 2147483647: users:replicate_on_write:false:1@1363254809666000 DEBUG 15:29:58,892 collecting 18 of 2147483647: users:type:false:8@1363254809666000 DEBUG 15:29:58,892 collecting 19 of 2147483647: users:value_alias:true:4@1363254809666000 java.lang.NullPointerException at org.apache.cassandra.utils.ByteBufferUtil.toInt(ByteBufferUtil.java:414) at org.apache.cassandra.cql.jdbc.JdbcInt32.compose(JdbcInt32.java:98) at org.apache.cassandra.db.marshal.Int32Type.compose(Int32Type.java:37) at org.apache.cassandra.cql3.UntypedResultSet$Row.getInt(UntypedResultSet.java:97) at org.apache.cassandra.config.CFMetaData.fromSchemaNoColumns(CFMetaData.java:1202) at org.apache.cassandra.config.CFMetaData.fromSchema(CFMetaData.java:1247) at org.apache.cassandra.config.KSMetaData.deserializeColumnFamilies(KSMetaData.java:299) at org.apache.cassandra.config.KSMetaData.fromSchema(KSMetaData.java:280) at org.apache.cassandra.db.DefsTable.loadFromTable(DefsTable.java:159) at org.apache.cassandra.config.DatabaseDescriptor.loadSchemas(DatabaseDescriptor.java:540) at org.apache.cassandra.service.AbstractCassandraDaemon.setup(AbstractCassandraDaemon.java:183) at org.apache.cassandra.service.AbstractCassandraDaemon.init(AbstractCassandraDaemon.java:290) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.commons.daemon.support.DaemonLoader.load(DaemonLoader.java:212) Cannot load daemon Service exit with a return value of 3 2013/3/14 Michal Michalski <mich...@opera.com> > > "on my workstation with a < 0.01% sample of production" >>> >> Is there a simple way of getting that ? >> > > On "Cassandra level"? Nope. I just had to prepare these data "manualy" > using software we develop on very small input. I understand that it might > not be so easy in all the use cases, as it was in my case. > > M. > > >