RabbitMQ Cheat Sheet
Commands
rabbitmqctl list_vhosts
rabbitmqctl list_queues -p <vhost>
rabbitmqctl cluster_status
rabbitmqctl stop_app
rabbitmqctl join_cluster <node>
rabbitmqctl start_app
rabbitmqctl report # Dump detailed report on RabbitMQ instance
# Plugin management
/usr/lib/rabbitmq/bin/rabbitmq-plugins enable <name>
/usr/lib/rabbitmq/bin/rabbitmq-plugins list
# Live modifications using eval
rabbitmqctl eval 'application:set_env(rabbit, reverse_dns_lookups, true).'
# Convert disk node to RAM node
rabbitmqctl change_cluster_node_type ram
Configuring Limits
Find out about actual limits
rabbitmqctl status | grep -A 4 file_descriptors
{file_descriptors,
[{total_limit,924},
{total_used,831},
{sockets_limit,829},
{sockets_used,829}]},
To increase it to e.g. 10000 open files:
rabbitmqctl eval 'file_handle_cache:set_limit(10000).'
Misc
- Managment GUI on port 15627
- RabbitMQ - Fix Chef 100% CPU usage
- RabbitMQ - Setup Clustering
RabbitMQ RAM Nodes: can be used only in cluster with at least one disk node
# /etc/rabbitmq.conf {cluster_nodes, {['[email protected]', '[email protected]', ...], ram}},On CLI:
rabbitmqctl join_cluster --ram [email protected] # or if it is already in cluster rabbitmqctl change_cluster_node_type ram