NamespaceDescriptor getNamespace(String name) throws IOException {
    checkInitialized();
    if (this.cpHost != null) this.cpHost.preGetNamespaceDescriptor(name);
    NamespaceDescriptor nsd = this.clusterSchemaService.getNamespace(name);
    if (this.cpHost != null) this.cpHost.postGetNamespaceDescriptor(nsd);
    return nsd;
  }
Get a Namespace
@param name Name of the Namespace
@return Namespace descriptor for <code>name</code>
hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java