Waitopedia is a comprehensive resource of information about SQL Server waits.

The description shown below is the top answer as voted by the Spotlight community.

The charts are based on 2.1 TB of data collected from 4207 instances uploaded by 323 Spotlight users over an 8 week period.


Category: Idle
SQL Server versions: 2005, 2008, 2008 R2, 2012, 2014, 2016, 2017

This is an idle wait and so it can be safely ignored.


1 Answer


Occurs when a task is waiting for all outstanding I/O to complete, so that I/O to a file can be frozen for snapshot backup. Information from Microsoft®

Very rare

This wait never occurs for most instances

For each of 4207 instances, we ranked REQUEST_DISPENSER_PAUSE on how frequent it is compared to all other recent waits. The chart shows the total of all rankings.

Prevalence of REQUEST_DISPENSER_PAUSE across the Spotlight Population

For 90 % of hours with this wait, average wait time is around 990 ms

For each instance, we found all the recent hours when it had a REQUEST_DISPENSER_PAUSE wait. We found the average latency for each of those hours.

24 instances contributed data to this chart

Latency Distribution of REQUEST_DISPENSER_PAUSE across the Spotlight Population