Out of interest why are you creating column families by making direct calls on an embedded cassandra instance ? I would guess you life would be easier if you defined a schema in CQL or CLI.
> I already read in the documentation that this error occurs when more than one > thread/processor access the same place in the Cassandra, but I think this is > not occuring. How may nodes do you have ? What version are you running ? It sounds like you have run simultaneous schema updates and the global schema has diverged. If you can create your schema in CLI or CQL I would recommend doing that. If you are trying to do something more complicated you'll need to provide more information. Cheers ----------------- Aaron Morton Freelance Cassandra Developer New Zealand @aaronmorton http://www.thelastpickle.com On 15/11/2012, at 3:13 AM, Everton Lima <peitin.inu...@gmail.com> wrote: > Some times, when I try to insert a data in Cassandra with Method: > > static void createColumnFamily(String keySpace, String columnFamily){ > synchronized (mutex){ > Iface cs = new CassandraServer(); > CfDef cfDef = new CfDef(keySpace, columnFamily); > > cfDef = cfDef.setComparator_type(comparator.toString()); > cfDef = cfDef.setKey_validation_class(UTF8Type.class.getName()); > cfDef = cfDef.setCaching("all"); > > cs.set_keyspace(keySpace); > cs.system_add_column_family(cfDef); > } > } > > I run this method in only on process of the distributor system. But in this > process, I run the method two times consecutive in the same thread, but with > keyspace diferent. > I already read in the documentation that this error occurs when more than one > thread/processor access the same place in the Cassandra, but I think this is > not occuring. > Some one cold help me to understand this problem? > > Thanks. > > -- > > Everton Lima Aleixo > Bacharel em Ciencia da Computação > Universidade Federal de Goiás
