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: Remote Provider
SQL Server versions: 2005, 2008, 2008 R2, 2012, 2014, 2016, 2017

What is MSQL_DQ?

1 Answer


Occurs when a task is waiting for a distributed query operation to finish. This is used to detect potential Multiple Active Result Set (MARS) application deadlocks. The wait ends when the distributed query call finishes. Information from Microsoft®

Very rare

This wait never occurs for most instances

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

Prevalence of MSQL_DQ across the Spotlight Population

For 79 % of hours with this wait, average wait time is less than 12 ms

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

961 instances contributed data to this chart

Latency Distribution of MSQL_DQ across the Spotlight Population