Issue Plesk beam.smp process problem/using much RAM and Sync to Outlook takes long

[cloudbridge]

Hello Plesk'ians,

Server: VPS 16GB RAM, Debian 9, Plesk Obsidian 18.0.28
Problem: I have a problem with one server that process beam.smp generates many beam.smp processes and uses much ram (PIC htop. Outlook sync mail very long, gmail (plesk account) sync long too.

Solution: After I kill 1 process (PIC2 htop after kill) - other is being killed too, and RAM goes back to normal mode, and everything works, outlook synchronizes mail fast also then.

Question: Why beam.smp so many processes? What causes it to generate and it doesn't stop running, I need to kill it manually. But if i kill one, all is being killed too.
I had this situation about 2-3 days ago, but i didn't kill it, and server was inactive (zombie mode) i was unavailable to connect over ssh etc... it gived me message from KVM that RAM is out of....and this proccess beam.smp was getting all ram at maximum.

 

[Hex]

Plesk has nothing to do on all of this.

Reasoning About Memory Use | RabbitMQ

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RabbitMQ (beam.smp) and high CPU/memory load issue

I have a debian box running tasks with celery and rabbitmq for about a year. Recently I noticed tasks were not being processed so I logged into the system and noticed that celery could not connect to

stackoverflow.com

Finally I found the solution. These posts helped to figure this out. RabbitMQ on EC2 Consuming Tons of CPU and How do I restart rabbitmq after switching machines?

What happened was rabbitmq was holding on to all the results that were never freed to the point it became overloaded. I cleared all the stale data in /var/lib/rabbitmq/mnesia/rabbit/, restarted rabbit and it works fine now.

My solution was to disable storing results alltogether with CELERY_IGNORE_RESULT = True in the Celery config file to assure this does not happen again.

Redirecting to Google Groups

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[cloudbridge]

Plesk has nothing to do on all of this.

Reasoning About Memory Use | RabbitMQ

<!--

www.rabbitmq.com

RabbitMQ (beam.smp) and high CPU/memory load issue

I have a debian box running tasks with celery and rabbitmq for about a year. Recently I noticed tasks were not being processed so I logged into the system and noticed that celery could not connect to

stackoverflow.com

Redirecting to Google Groups

groups.google.com

Thank you Hextrator, I will try to do some changes with this, because once again before 5mins it started again...
I will let you all know if it will fix it in some days.