Where is the base directory of a transaction table?

[vic0777]

Hi All,

I am trying to use the new transaction feature in Hive-0.14. According to its 
document, every transaction table have a base directory and one delta directory 
for each transaction in HDFS for data storage. But I can not find where the 
base directory is in HDFS, there is only delta directories. Following is the 
commands I used.

create table test_txn (id int ,name string ) clustered by (id) into 2 buckets 
stored as orc TBLPROPERTIES('transactional'='true');
insert into table test_txn select * from test_text;
update test_txn set name="liu" where id = 10;

P.S. I have configured the parameters required by the transaction feature:
  hive.support.concurrency,
  hive.enforce.bucketing,
  hive.exec.dynamic.partition.mode,
  hive.txn.manager,
  hive.compactor.initiator.on
  hive.compactor.worker.threads.

Although I cannot find the base directory in HDFS, all SELECT, UPDATE and 
DELETE statements works fine and the data in the table is correct. I am 
wondering where the base directory is.

Any help is appreciated.

Thanks,
Wantao