Where can there be drawdowns in rabbitmq?

Question

RabbitMQ

Hello everyone and Happy New Year!

I have a queue in rabbitmq, the data from which the clickhouse takes, there are no problems with this, but there are some strange drawdowns when messages arrive in the queue, which occur every 2 minutes stably. What could be the problem? Messages accurately fly without such pauses, as shown on the chart

Answer 1

Perhaps flushing data to disk? Overlay on a graph of disk activity.
Not sure if this is a problem. If the system works as expected, everything is OK.