Glossary

List of internal/external terms used by Goose & their meanings

Term	Description
Client	Enqueues Jobs (typically called from application server).
Message Broker	A pluggable store that facilitates transfers between client & worker.
Worker	Dequeues jobs & executes them.
Producer/Consumer Publisher/Subscriber	Producer sends messages meant for a single consumer. We aren't using the terms Publisher/Subscriber because publishing is meant for multiple subscribers.
Async/Background Job	A Job enqueued/executed in FIFO style.
Scheduled Job	A Job scheduled for execution at given time.
Cron Job	A Job performed recurringly at a fixed interval.
Failure/Error	When a Job throws an uncaught exception during execution.
Retry	When a failed Job is re-enqueued & re-executed.
Dead Job	When a failed Job has exhausted retries.
Worker Crash	When a worker exits abruptly without any warning.
Orphan Job Abandoned Job	In-progress/Executing Jobs when a worker crashes. They're recovered by a different worker process.
Poison Job	A Job that causes a vicious cycle of execution -> crash -> recovery -> execution ->...

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