Skip to main content

Monitoring & Management

Tutorials

    Monitoring with Prometheus & Grafana — RabbitMQ

    Web UI

    Overview

    • Ready: 已經發佈到 Queue 的訊息量
    • Unacked: 消費端已接收但尚未 Ack 的訊息量
    • Total: Ready + Unacked

    CLI

    rabbitmq-diagnostics

    Online Resource Utilization

    rabbitmq-diagnostics observer

    RabbitMQ Version

    [root@tpeeaprmq98 ~]# rabbitmq-diagnostics server_version
Asking node rabbit@tpeeaprmq98 for its RabbitMQ version...
3.10.7
    rabbitmqctl

    List the queues

    rabbitmqctl -p <vhost-name> list_queues name state durable arguments policy

rabbitmqctl -qs -p <vhost-name> list_queues name > queue_names.lst

    User Management

    # List all users
rabbitmqctl list_users

# Create a new user
rabbitmqctl add_user "eapuser"
rabbitmqctl add_vhost "eap_server"
rabbitmqctl set_permissions -p "eap_server" "eapuser" ".*" ".*" ".*"
rabbitmqctl set_user_tags eapuser monitoring  # for web login only

# Remove tag 'monitoring' from user if needed
rabbitmqctl set_user_tags eapuser ""

# Tag the user with "administrator" for full management UI and HTTP API access
rabbitmqctl set_user_tags username administrator

## Verifying the permission
# => Listing permissions for vhost "/" ...
# => user    configure   write   read
# => user2   .*  .*  .*
# => guest   .*  .*  .*
# => temp-user   .*  .*  .*
rabbitmqctl list_permissions --vhost /
rabbitmqctl list_permissions --vhost gw1

# Revoke user access
rabbitmqctl delete_user 'username'

    Connections

    rabbitmqctl list_connections
rabbitmqctl list_connections user,peer_host,peer_port,channels,state

    Recreate the virtual host

    rabbitmqctl delete_vhost <my-vhost-name>
rabbltmqctl add_vhost <my-vhost-name>

    Reset the RabbitMQ Node

    The broker drops all virtual hosts, queues, exchanges, and non-administrative users.

    rabbitmqctl stop_app
rabbitmqctl reset
rabbitmqctl start_app

    Force Reset the RabbitMQ Node

    如果 Cluster 損壞且無法恢復運作時，可以嘗試強制重設 Node。

    rabbitmqctl stop_app
rabbitmqctl force_reset
rabbitmqctl start_app

    Suspend all listeners and prevent new client connections

    暫停 listener 後，可以使用指令 ss -ltpn 檢查所有的 listener port 是否關閉。

    既有的連線不會受到影響，不過新的連線將無法建立。

    # For current node
rabbitmqctl suspend_listeners

# suspends listeners on node rabbit@node2.cluster.rabbitmq.svc: it won't accept any new client connections
rabbitmqctl suspend_listeners -n rabbit@node2.cluster.rabbitmq.svc

# For current node, to resume all listeners on a node and make it accept new client connections again
rabbitmqctl resume_listeners
# resumes listeners on node rabbit@node2.cluster.rabbitmq.svc: it will accept new client connections again
rabbitmqctl resume_listeners -n rabbit@node2.cluster.rabbitmq.svc
    rabbitmqadmin

    Basic Operation

    # List queus
rabbitmqadmin list queues
rabbitmqadmin -H <RabbitMQ-Server-IP> -u <username> -p <password> -V <vhost-name> list queues

# Add a queue with optional parameters
rabbitmqadmin declare queue name=<my-new-queu> durable=true auto_delete=true

    Remove multiple queues

    rabbitmqadmin -f tsv -q list queues name > q.txt
while read -r name; do rabbitmqadmin -q delete queue name="${name}"; done < q.txt

    Connections

    rabbitmqadmin -H <RabbitMQ-Server-IP> -u <username> -p <password> -V <vhost-name> list connections name

# Close multiple connections without any channels
rabbitmqadmin -f tsv -q connections name channels | awk -F "\t" '($2 < 1) {print $1}' | tee conn_noChannels.lst
while read -r conn;do rabbitmqadmin close connection name="${conn}"; done < conn_noChannels.lst


    Monitoring

    • Queue State: rabbitmqctl list_queues name state
    • Health-Check: rabbitmq-diagnostics check_running , rabbitmq-diagnostics ping 
    • Cluster Status: rabbitmqctl cluster_status 
    Prometheus
      Monitoring with Prometheus & Grafana — RabbitMQ

       

      Back to top