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TransactionBatch is used to write a series of transactions.  For each transaction, the application calls beginNextTransaction, write, and then commit or abort as appropriate. See the Javadoc for details. All records in a single Transaction Batch will go to the same bucket. The API randomly picks a bucket for each new TxnBatch in order to spread the data among buckets. 

Transactions in a TransactionBatch are eventually expired by the Metastore if not committed or aborted after hive.txn.timeout secs. TrasnactionBatch class provides a heartbeat() method to prolong the lifetime of unused transactions in the batch.

Notes about the HiveConf Object

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