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• Default Value: false
• Added In: Hive 0.7.0 with HIVE-1293

Whether Hive supports concurrency or not. A Zookeeper ZooKeeper instance must be up and running for the default Hive lock manager to support read-write locks.

Set to true to support INSERT ... VALUES, UPDATE, and DELETE transactions (Hive 0.14.0 and later). For a complete list of parameters required for turning on Hive transactions, see hive.txn.manager.

hive.lock.manager

• Default Value: org.apache.hadoop.hive.ql.lockmgr.zookeeper.ZooKeeperHiveLockManager
• Added In: Hive 0.7.0 with HIVE-1293

The lock manager to use when hive.support.concurrency is set to true.

hive.lock.mapred.only.operation

• Default Value: false
• Added In: Hive 0.8.0

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• Default Value: 100
• Added In: Hive 0.7.00 with HIVE-1293

The number of times you want to try to get all the locks.

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• Default Value: 60
• Added In: Hive 0.7.00 with HIVE-1293

The sleep time (in seconds) between various retries.

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• Default Value: (empty)
• Added In: Hive 0.7.00 with HIVE-1293

The list of Zookeeper ZooKeeper servers to talk to. This is only needed for read/write locks.

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• Default Value: 2181
• Added In: Hive 0.7.00 with HIVE-1293

The port of Zookeeper ZooKeeper servers to talk to. This is only needed for read/write locks.

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• Default Value:
  • Hive 0.7.0 to 1.1.x: 600000ms
  • Hive 1.2.0 and later: 1200000ms (HIVE-8890)

• Added In: Hive 0.7.00 with HIVE-1293

ZooKeeper Zookeeper client's session timeout (in milliseconds). The client is disconnected, and as a result, all locks released, if a heartbeat is not sent in the timeout.

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The parent node under which all Zookeeper ZooKeeper nodes are created.

hive.zookeeper.clean.extra.nodes

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Clean extra nodes at the end of the session.

hive.lockmgr.zookeeper.default.partition.name

• Default Value: __HIVE_DEFAULT_ZOOKEEPER_PARTITION__
• Added In: Hive 0.7.0 with HIVE-1293

C

Metrics

hive.metastore.metrics.enabled

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