To understand the concurrency setting, read the Concurrency concept document.
Like any configuration change, setting the concurrency of a service leads to the creation of a new revision. Subsequent revisions will also automatically get the same concurrency setting unless you explicitly update it.
Console
Using the console, you can set concurrency at service creation or deployment time:
If you are creating a new service:
Create the service using the console as described in Deploying Services.
After you specify the container image URL, the service name, and the location, click SHOW OPTIONAL SETTINGS.
Set the desired concurrency value in the text box Maximum requests per container:
If you are deploying a new revision of an existing service:
Locate the service you want to update in the services list, and click on it to open the details of that service.
Click DEPLOY NEW REVISION.
Click SHOW OPTIONAL SETTINGS.
Set the concurrency value in the text box Maximum requests per container.
Command line
To set concurrency, use the following command:
gcloud beta run services update [SERVICE] --concurrency=[NUMBER]
Replace [NUMBER] with the maximum number of concurrent requests per
container instance. For example the following sets a maximum of
40 concurrent requests:
gcloud beta run services update [SERVICE] --concurrency=40
Changing the concurrency of a given service will capture this setting in a new revision.
To revert to the default concurrency (80), use the command
gcloud beta run services update [SERVICE] --concurrency default
Replace [SERVICE] with the name of the service you are configuring.
