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@ -7,7 +7,7 @@ class Scheduler::AccountsStatusesCleanupScheduler
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# This limit is mostly to be nice to the fediverse at large and not
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# generate too much traffic.
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# This also helps limiting the running time of the scheduler itself.
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MAX_BUDGET = 50
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MAX_BUDGET = 150
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# This is an attempt to spread the load across instances, as various
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# accounts are likely to have various followers.
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@ -15,28 +15,22 @@ class Scheduler::AccountsStatusesCleanupScheduler
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# This is an attempt to limit the workload generated by status removal
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# jobs to something the particular instance can handle.
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PER_THREAD_BUDGET = 5
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PER_THREAD_BUDGET = 6
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# Those avoid loading an instance that is already under load
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MAX_DEFAULT_SIZE = 2
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MAX_DEFAULT_SIZE = 200
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MAX_DEFAULT_LATENCY = 5
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MAX_PUSH_SIZE = 5
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MAX_PUSH_SIZE = 500
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MAX_PUSH_LATENCY = 10
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# 'pull' queue has lower priority jobs, and it's unlikely that pushing
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# deletes would cause much issues with this queue if it didn't cause issues
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# with default and push. Yet, do not enqueue deletes if the instance is
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# lagging behind too much.
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MAX_PULL_SIZE = 500
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MAX_PULL_LATENCY = 300
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# This is less of an issue in general, but deleting old statuses is likely
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# to cause delivery errors, and thus increase the number of jobs to be retried.
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# This doesn't directly translate to load, but connection errors and a high
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# number of dead instances may lead to this spiraling out of control if
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# unchecked.
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MAX_RETRY_SIZE = 50_000
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MAX_PULL_SIZE = 10_000
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MAX_PULL_LATENCY = 5.minutes.to_i
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sidekiq_options retry: 0, lock: :until_executed
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sidekiq_options retry: 0, lock: :until_executed, lock_ttl: 1.day.to_i
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def perform
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return if under_load?
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@ -73,8 +67,6 @@ class Scheduler::AccountsStatusesCleanupScheduler
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end
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def under_load?
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return true if Sidekiq::Stats.new.retry_size > MAX_RETRY_SIZE
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queue_under_load?('default', MAX_DEFAULT_SIZE, MAX_DEFAULT_LATENCY) || queue_under_load?('push', MAX_PUSH_SIZE, MAX_PUSH_LATENCY) || queue_under_load?('pull', MAX_PULL_SIZE, MAX_PULL_LATENCY)
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end
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