DDL operations are done from the client, not as part of a Tez DAG.
There still is no linkage between the DAGs even if they access the same
tables or somehow depend on each other. Hive manages making sure
queries are executed in the order given. Tez just executed each query.
Alan.
Xiaoyong Zhu <mailto:[email protected]>
December 16, 2014 at 15:41
Thanks Alan! Then what if different hive queries have some links (e.g.
query 1 creates table abc and query 2 reads data from abc) will this
be in 1 DAG or 2 DAGs? If 2, then is there any link/relatioinship
between the 2 DAGs?
Xiaoyong
*From:*Alan Gates [mailto:[email protected]]
*Sent:* Wednesday, December 17, 2014 5:27 AM
*To:* [email protected]
*Subject:* Re: relationship between a hive query and a tez dag
Several. Each Hive query becomes one Tez DAG.
Alan.
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Alan Gates <mailto:[email protected]>
December 16, 2014 at 13:26
Several. Each Hive query becomes one Tez DAG.
Alan.
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