Class: ActiveJob::QueueAdapters::AsyncAdapter
Relationships & Source Files | |
Inherits: | Object |
Defined in: | activejob/lib/active_job/queue_adapters/async_adapter.rb |
Overview
Active Job Async adapter
The Async adapter runs jobs with an in-process thread pool.
This is the default queue adapter. It’s well-suited for dev/test since it doesn’t need an external infrastructure, but it’s a poor fit for production since it drops pending jobs on restart.
To use this adapter, set queue adapter to :async
:
config.active_job.queue_adapter = :async
To configure the adapter’s thread pool, instantiate the adapter and pass your own config:
config.active_job.queue_adapter = ActiveJob::QueueAdapters::AsyncAdapter.new \
min_threads: 1,
max_threads: 2 * Concurrent.processor_count,
idletime: 600.seconds
The adapter uses a Concurrent Ruby thread pool to schedule and execute jobs. Since jobs share a single thread pool, long-running jobs will block short-lived jobs. Fine for dev/test; bad for production.
Class Method Summary
-
.new(**executor_options) ⇒ AsyncAdapter
constructor
See Concurrent::ThreadPoolExecutor for executor options.
Constructor Details
.new(**executor_options) ⇒ AsyncAdapter
See Concurrent::ThreadPoolExecutor for executor options.