cassandra - How to create super column using Hector API? -


my code: 

public class insertsupercolumn {      private static stringserializer stringserializer = stringserializer.get();      public static void main(string[] args) throws exception {          cluster cluster = hfactory.getorcreatecluster("testcluster", "localhost:9160");          keyspace keyspaceoperator = hfactory.createkeyspace("keyspace1", cluster);          try {             mutator<string> mutator = hfactory.createmutator(keyspaceoperator, stringserializer);             mutator.insert("billing", "super1", hfactory.createsupercolumn("jsmith",                      arrays.aslist(hfactory.createstringcolumn("first", "john")),                      stringserializer, stringserializer, stringserializer));              supercolumnquery<string, string, string, string> supercolumnquery =                  hfactory.createsupercolumnquery(keyspaceoperator, stringserializer, stringserializer,                          stringserializer, stringserializer);             supercolumnquery.setcolumnfamily("super1").setkey("billing").setsupername("jsmith");              queryresult<hsupercolumn<string, string, string>> result = supercolumnquery.execute();              system.out.println("read hsupercolumn cassandra: " + result.get());                         system.out.println("verify on cli with:  keyspace1.super1['billing']['jsmith'] ");          } catch (hectorexception e) {             e.printstacktrace();         }          cluster.getconnectionmanager().shutdown();        } }

i getting error :

exception in thread "main" me.prettyprint.hector.api.exceptions.hinvalidrequestexception:  invalidrequestexception(why:keyspace names must case-insensitively unique ("new2" conflicts "new2"))

the problem creating keyspace , column family store super column multiple times. cant that, keyspaces , column families must uniquely named. exception telling you:

why:keyspace names must case-insensitively unique  ("new2" conflicts "new2")

so far code concerned, have created supercolumn correctly. try verifying using cassandra cli.


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