Internals

• Contributors Guide to the Code
• Philosophy
• Conventions and Idioms Used
• Applications vs. “single mode”
• Module Overview
• Celery Deprecation Timeline
• Removals for version 3.2
• Removals for version 4.0
• Removals for version 2.0
• Internals: The worker
• Introduction
• Data structures
• Components
• Task Messages
• Message format
• Extensions
• Example message
• Serialization
• Task Message Protocol v2 (Draft Spec.)
• Notes
• Definition
• Example
• “The Big Instance” Refactor
• Examples
• Deprecations
• Removed deprecations
• Aliases (Pending deprecation)
• Default App Usage
• Internal Module Reference
• celery.worker.components
• celery.worker.loops
• celery.worker.heartbeat
• celery.worker.control
• celery.worker.pidbox
• celery.worker.autoreload
• celery.worker.autoscale
• celery.concurrency
• celery.concurrency.solo
• celery.concurrency.prefork
• celery.concurrency.eventlet
• celery.concurrency.gevent† (experimental)
• celery.concurrency.base
• celery.concurrency.threads‡ (minefield)
• celery.backends
• celery.backends.base
• celery.backends.rpc
• celery.backends.database
• celery.backends.cache
• celery.backends.amqp
• celery.backends.mongodb
• celery.backends.redis
• celery.backends.cassandra
• celery.backends.couchbase
• celery.app.trace
• celery.app.annotations
• celery.app.routes
• celery.datastructures
• celery.security.certificate
• celery.security.key
• celery.security.serialization
• celery.security.utils
• celery.events.snapshot
• celery.events.cursesmon
• celery.events.dumper
• celery.backends.database.models
• celery.backends.database.session
• celery.utils
• celery.utils.functional
• celery.utils.objects
• celery.utils.term
• celery.utils.timeutils
• celery.utils.iso8601
• celery.utils.compat
• celery.utils.serialization
• celery.utils.sysinfo
• celery.utils.threads
• celery.utils.timer2
• celery.utils.imports
• celery.utils.log
• celery.utils.text
• celery.utils.dispatch
• celery.utils.dispatch.signal
• celery.utils.dispatch.saferef
• celery.platforms
• celery._state