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From Everton Lima <>
Subject SchemaDisagreementException
Date Wed, 14 Nov 2012 14:13:30 GMT
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");


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?



Everton Lima Aleixo
Bacharel em Ciencia da Computação
Universidade Federal de Goiás

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