33 lines
1.4 KiB
Markdown
33 lines
1.4 KiB
Markdown
# Sidekiq Job throttling
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> Note: Introduced with GitLab 8.14
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When your GitLab installation needs to handle tens of thousands of background
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jobs, it can be convenient to throttle queues that do not need to be executed
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immediately, e.g. long running jobs like Pipelines, thus allowing jobs that do
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need to be executed immediately to have access to more resources.
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In order to accomplish this, you can limit the amount of workers that certain
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slow running queues can have available. This is what we call Sidekiq Job
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Throttling. Depending on your infrastructure, you might have different slow
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running queues, which is why you can choose which queues you want to throttle
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and by how much you want to throttle them.
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These settings are available in the Application Settings of your GitLab
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installation.
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The throttle factor determines the maximum number of workers a queue can run on.
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This value gets multiplied by `:concurrency` value set in the Sidekiq settings
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and rounded up to the closest full integer.
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So, for example, you set the `:concurrency` to 25 and the `Throttling factor` to
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0.1, the maximum workers assigned to the selected queues would be 3.
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```ruby
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queue_limit = (factor * Sidekiq.options[:concurrency]).ceil
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```
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After enabling the job throttling, you will need to restart your GitLab
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instance, in order for the changes to take effect. |