What version are you using ? IIRC not all versions of the Hive driver support counters.
Cheers ----------------- Aaron Morton Freelance Developer @aaronmorton http://www.thelastpickle.com On 20/03/2012, at 1:09 PM, Sunit Randhawa wrote: > I am trying to store Counters CF from cassandra to Hive. Below is the CREATE > TABLE syntax in Hive: > > DROP TABLE IF EXISTS Counters; > create external table Counters(row_key string, column_name string, value > string) > STORED BY 'org.apache.hadoop.hive.cassandra.CassandraStorageHandler' > WITH SERDEPROPERTIES ("cassandra.columns.mapping" = ":key,:column,:value", > "cassandra.ks.name" = "BAMSchema", > "cassandra.ks.repfactor" = "1", > "cassandra.ks.strategy" = "org.apache.cassandra.locator.SimpleStrategy", > "cassandra.cf.name" = "Counters" , > "cassandra.host" = "127.0.0.1" , > "cassandra.port" = "9160", > "cassandra.partitioner" = "org.apache.cassandra.dht.RandomPartitioner") > TBLPROPERTIES ( > "cassandra.input.split.size" = "64000", > "cassandra.range.size" = "1000", > "cassandra.slice.predicate.size" = "1000"); > > and Counter CF is defined as : > > create column family Counters > with comparator = UTF8Type > and default_validation_class=CounterColumnType > and replicate_on_write=true; > > > I am not able to import the Counter value in Hive. I am getting other row_key > and column_name properly. > > > Below is the output from Hive: > > hive> select * from Counters; > OK > 213_debit_1326690000 1-sess_count d > 213_debit_1326690000 1-total_db_time > 213_debit_1326690000 1-total_exec_time > 213_debit_1326690000 1-txn_count > 213_debit_1326690000 2-sess_count > 213_debit_1326690000 2-total_db_time > 213_debit_1326690000 2-total_exec_time > 213_debit_1326690000 2-txn_count > Time taken: 0.263 seconds > > > Below is output from Cassandra: > > [default@BAMSchema] list Counters; > Using default limit of 100 > ------------------- > RowKey: 213_debit_1326690000 > => (counter=1-sess_count, value=100) > => (counter=1-total_db_time, value=20) > => (counter=1-total_exec_time, value=30) > => (counter=1-txn_count, value=1) > => (counter=2-sess_count, value=30) > => (counter=2-total_db_time, value=30) > => (counter=2-total_exec_time, value=30) > => (counter=2-txn_count, value=1) > > > As you can see that "d" junk letter is getting added in Hive when import > happens from Cassandra to Hive. Wondering what am I missing. > > Thanks for your help! >
