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When you run an instance of Microsoft SQL Server 2017 inside a Linux Docker container, you may receive an out-of-memory error message.


SQL Server on Linux by default uses a soft limit of 80% of total physical memory when memory.memorylimitmb configuration is not enabled; For Docker containers SQL used to consider 80% of total host memory instead of limiting itself to 80% memory allocated to the docker container. This incorrect memory limit allows SQL Server to try to consume memory more than that is available for container and could be a candidate for termination by OOM Killer.

Note When you create the Docker image you have to specify –m to limit the Docker memory. Refer following article for more information.

Create Docker


A fix for this issue is included in the following update for SQL Server:

Cumulative Update 10 for SQL Server 2017 

Note If memory.memorylimitmb configuration is not configured then this Fix allows SQL Server to limit itself to a soft limit of 80% of allocated memory to the container.

About SQL Server builds

Each new build for SQL Server contains all the hotfixes and security fixes that were in the previous build. We recommend that you install the latest build for your version of SQL Server:

The latest build for SQL Server 2017


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.


Learn about the standard terminology Microsoft uses to describe software updates.

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