Start/notes.ini Parameters/Update_Suppression_Time

Update_Suppression_Time

Parameter: Update_Suppression_Time
Short description: Dwell time of requests in the Update task's deferred queue. Default 15 minutes.

Profile

Parameter
Update_Suppression_Time
Category
Performance / Memory (Indexer)
Available since
At least 11.0.1 (HCL documentation)
GUI equivalent
According to HCL, no direct GUI option. Can be set in the configuration document on the NOTES.INI Settings tab.
Possible values
Positive number = minutes · negative number = seconds
Default
15 (= 15 minutes)

Description

According to the HCL product documentation:
Specifies the length of time that deferred update requests are held in queue.
The Update Task (indexer) maintains two work queues - an immediate queue and a deferred queue. Deferred update requests are held for 15 minutes before they are processed so that requests to update the same database in that time are ignored as duplicate requests. Updater queues can grow if the server has a high update rate because of heavy database use. Use this variable to specify the length of time that deferred update requests are held in queue.
n -- length of time in queue in minutes
-n -- (negative value) length of time in queue in seconds
(The note about Updater queues growing under heavy write load is from the HCL doc for 14.5.1.)
In short: Domino collects multiple update requests for the same database during this time window and processes them as one — saving re-indexing effort on servers with many writes in quick succession.

Example configuration

Update_Suppression_Time=30
With Update_Suppression_Time=30, update requests are held for 30 minutes. Use a negative number for seconds, e.g. Update_Suppression_Time=-90 for 90 seconds.

Notes & pitfalls

  • Longer dwell times reduce indexer CPU load but delay visibility of index changes.
  • Related: Update_Suppression_Limit (queue size), Update_No_Fulltext (FT indexing on/off).
  • According to HCL, there is no direct GUI equivalent.

Sources (HCL Product Documentation)