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I bought the Cgroups extension in order to monitor and limit CPU and RAM consumption per subscription. It's a nice feature, saved me from some headaches already. Today there was nothing unusual going on but why is Advanced Monitoring reporting that one subscription's CPU usage jumped to 60...

Bump too @FrankTheMan. Looks like this issue was not fixed and it seems to affect the Migration & Transfer Manager function as well. Last week I moved a client's subscription from one Plesk server to another and the database tables lost their emojis. Fortunately it was only a few minor details...

So, not a word on this?

Almost a year ago I posted this: Input - Making hotlink optional in Wordpress websites TL;DR: If hotlinking protection (which is highly recommended by the toolkit) is enabled, then Woocommerce's transactional emails won't show the store logo when viewed by the customer. So today I was...

Plesk says you should not upgrade your Ubuntu version, it may break things. I have the same issue with an older server running Ubuntu 18, the solution is really what Rasp says: run a migration. Just don't forget about DNS propagation periods...

@quantim The backup and restore functions in Plesk are not as straightforward as Cpanel's but I have used them before to both transfer subscriptions between servers and archive canceled subscriptions, and they do perform as expected. First thing I do after launching a fresh server is to change...

So I just wanted to record in writing what I've been through for the past few hours today with Plesk Obsidian. I immediately started shaking when I realized what just happened. Maybe writing about it can calm me down a little bit, and prevent others from making the same mistakes as I did. And I...

Alright, ten minutes in and things have improved vastly. Looks like the problem was being caused by the Product Addons plugin being outdated (WooCommerce Product Add-Ons - Custom & Personalized Products) on this site. Thing is, the Wordpress toolkit *did not* mark this plugin as needing an update...

Okay John, thanks to your direction I think I might have found the culprit. The log files are showing lots of warnings but one site seemed to stand out from the others. I temporarily suspended it and CPU usage dropped. I'll investigate further and see if this is indeed the case.

There are only error logs in this directory. It's filling quite rapidly with warnings. Seems like some plugins could use a little update but we already keep them up to date anyway. Not sure though if this is related to the high usage.

New Relic is really fairly new to me LOL I'm not familiar with these queries yet. Anyway, the problem started again a few minutes ago at 19:41 (local time), I'm currently watching to find clues.

Hey John, thanks for the reply. That query yielded no results, also I don't know how to check the number of connections via New Relic. However I am checking the dashboard right now looking at a past incident and the number of network packets didn't seem to have fluctuated.

Just read about this: Recently Patched Vulnerability in Thrive Themes Actively Exploited in the Wild We don't use Thrive Themes and the spikes in load started before this, but I thought about posting this here.

I guess you wouldn't even need Plesk in order to achieve what you're doing... You could use some of the free control panels available or even go without any panels at all (which is harder to do, of course).

Some more info: We have REDIS installed and Wordpress set up to use object caching Nearly all of the sites use WP SUPER CACHE Sites dont go full offline with spikes but they do get very, very slow While spiking, HTOP shows all cores at nearly 100%. The process list does not show a single process...

Hello everyone. I need some help in identifying periodic extremely high usage in one of my servers (however, I have two and the same issue happens on the other as well). From time to time CPU and memory usage goes through the roof: That Grafana log is for the past 24 hours, note that it...

If you have used Cpanel you may have noticed that their installation of Roundcube includes the Calendar plugin. Since that plugin and others are open source, and you don't feel like shelling out for the Plesk Premium Mail extension, you can add that to your server by doing the following steps...

Plesk will not help you that much, it is a control panel, not a debugging tool. You can SSH into your server and then run HTOP (if it's not installed then just install it) and it MIGHT help you find out which client is causing the high load - HTOP in Linux is like Task Manager in Windows. But...

I could swear I read that graph as 100% CPU usage...

On another note, your screenshots seem to indicate you have a large server. Please note that having a server with plenty of specs is no substitute for efficient coding/better software architecture in case of a big site with lots of traffic.