Get and display RabbitMQ uptime measured in seconds using three different methods.
Get uptime using Erlang expression
Get uptime using Erlang expression.
$ sudo rabbitmqctl eval "{Total_Wallclock_Time, _} = erlang:statistics(wall_clock),Total_Wallclock_Time div 1000."
18309
rabbitmqctl utility
Install jq utility.
$ sudo apt install jq
Get uptime using rabbitmqctl utility.
$ sudo rabbitmqctl status --formatter=json | jq .uptime
18421
Management API
Install jq utility.
$ sudo apt install jq
Get uptime using management API.
$ curl --silent --user admin:password http://localhost:15672/api/nodes | jq ".[].uptime/1000 | floor"
19075
You need to take into account up to 10 seconds delay when using Management API as this value is not refreshed immediately.