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This flag is used in HiveServer 2 to enable a user to use HiveServer 2 without turning on Tez for HiveServer 2. The user could potentially want to run queries over Tez without the pool of sessions.

hive.server2.session.check.interval

• Default Value: 0ms
• Added In: Hive 0.14.0 with HIVE-5799

The check interval for session/operation timeout, which can be disabled by setting to zero or negative value.

hive.server2.idle.session.timeout

• Default Value: 0ms
• Added In: Hive 0.14.0 with HIVE-5799

With hive.server2.session.check.interval is set with positive time value, session will be closed when it's not accessed for this duration of time, which can be disabled by setting to zero or negative value.

hive.server2.session.check.interval

• Default Value: 0ms
• Added In: Hive 0.14.0 with HIVE-5799

With hive.server2.session.check.interval is set with positive time value, operation will be closed when it's not accessed for this duration of time, which can be disabled by setting to zero value.

  With positive value, it's checked for operations in terminal state only (FINISHED, CANCELED, CLOSED, ERROR)
  With negative value, it's checked for all of the operations regardless of state

Tez

Apache Tez was added in Hive 0.13.0 (HIVE-4660 and HIVE-6098).  For information see the design document Hive on Tez, especially the Installation and Configuration section.

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