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So I need to stop a running Job in Sidekiq (3.1.2) programmatically, not a scheduled one. I did read the API documentation but didn't really find anything about cancelling running jobs. Is this possible with sidekiq?
When this is not directly possible, my idea was to circumvent this, by raising an exception in the job when I call the signal, then deleting the job from the retryset. This is clearly not optimal though.
Thanks in advance
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Correct, the only way to stop a job is for the job to stop itself.
Sidekiq handles concurrency by using multiple threads in its process. This way, it can process multiple jobs at once, each thread processing one job at a time. By default, Sidekiq uses 10 threads per process. You can configure it to use more threads, thus increasing concurrency.
The only consistent fix I've found is rebooting. kill 'process_id' worked fine, to kill the process. Though then restarting sidekiq it can't find redis. Moreover, 'kill -term pid' will cause it to shut down as gracefully as it can in the next 10 seconds.
Sidekiq's "concurrency" setting is just a setting of how many threads it will run at once. High numbers lead to more fragmentation. You could imagine that 1 thread uses log(x) memory over time, so increasing the number of threads leads to n * log(x) memory use.
Correct, the only way to stop a job is for the job to stop itself. Your application must implement that logic.
https://github.com/mperham/sidekiq/wiki/FAQ#how-do-i-cancel-a-sidekiq-job
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