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Tuesday, January 26, 2016

Unused Retention Period Parameter in HANA



Configuring a retention for unloads typically provides no advantage and increases the risk of unnecessary unloads and loads. Therefore these parameters should only be set in exceptional situations.

Automatic unloads when a column exceeds the configured unused retention period:

Parameter Name      -  unused_retention_period

Default Value           -  0 (disabled)
Unit for Parameter  - s
About Parameter     -  Number of seconds after which an unused object can be unloaded

How to Set Parameter -  global.ini -> [memoryobjects] -> unused_retention_period


Parameter Name      - unused_retention_period_check_interval

Default Value          -  7200
Unit for Parameter  -  s
About Parameter     -  Check frequency for objects exceeding the retention time

How to Set Parameter -  global.ini -> [memoryobjects] -> unused_retention_period_check_interval

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