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changes.mady.by.user Lefty Leverenz

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changes.mady.by.user Taraka Rama Rao Lethavadla

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  1. The following settings are required in hive-site.xml to enable ACID support for streaming:
    1. hive.txn.manager = org.apache.hadoop.hive.ql.lockmgr.DbTxnManager
    2. hive.compactor.initiator.on = true (See more important details here)
    3. hive.compactor.cleaner.on = true (From Hive 4.0.0 onwards. See more important details here)
    4. hive.compactor.worker.threads > 0 
  2. “stored as orc” must be specified during table creation. Only ORC storage format is supported currently.
  3. tblproperties("transactional"="true") must be set on the table during creation.

  4. User of the client streaming process must have the necessary permissions to write to the table or partition and create partitions in the table.

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