Warren, feature by feature.

Run Warren in a minute with a demo broker, then point it at your own RabbitMQ with Docker or Helm.

Every broker on one page for whoever is on call - dead letters, firing alerts, room before publishers are blocked, growing and largest queues, and what Warren did today.

The queue list with dead-letter queues on top, and the queue page that groups dead letters by reason, queue, routing key or exception, with notes for the team.

Payload as a tree, table or raw, why the message is here, its death history, headers and properties, sensitive values hidden, and two or more messages compared field by field.

Send dead-lettered messages back to their original exchange and routing key, throttled, with death headers stripped and publisher confirms on every message.

Replays, discards and parks of "the first N" or "every match", and purges, are checked first; the confirm takes exactly the messages Warren froze.

Move poison messages out of the way into a parking queue, remove messages for good with a reason, or empty a queue in one step; every action in the audit log.

Copy dead letters into an NDJSON file without taking them, publish a file of messages to a queue or exchange, or write one test message by hand.

Every queue sampled around the clock - messages, ready, unacked and consumers over time, and a forecast of when a queue is empty at the current pace.

Rules that watch dead-letter queues, work queues and broker nodes, start from templates and notify a channel once, with repeats and an all-clear.

Send alerts to Slack, Microsoft Teams, PagerDuty, Opsgenie, e-mail or any JSON webhook, and keep a channel quiet at night.

Scrape Warren's view of RabbitMQ (dead letters, room before publishers are blocked, firing alerts, replays) into Prometheus and Grafana, with ready-made alerting rules.

Retry transient failures automatically - a rule replays the dead letters of one queue on a schedule, only those that match it, with attempt limits, pacing and a stop when it keeps failing.

Viewers read, operators act, admins manage alerts and users; local accounts or sign-in through your identity provider with roles from a claim.

Replays, discards and purges that wait for a second operator before they run, with both names in the audit log.

Every replay, park, discard, purge, export and publish with who, when, from where to where and the outcome per message; searchable, exportable as CSV and forwardable to a SIEM.

What RabbitMQ 3.13 and 4.x count as a delivery on a quorum queue, why a dead letter can arrive with its budget half used, and how Warren protects and shows it.

Every environment variable Warren reads, with its default and what it does.

What Community, Team and Pro include, how a licence is installed, and how brokers are counted.

Everything in Warren is reachable without a mouse - the shortcuts that matter at 3 a.m.