ftpmng --reconfigure High CPU / Hanging

[Jon L]

We appear to have a problem with ftpmng.exe using very high CPU (and most likely hanging), probably after the --reconfigure option is run (or triggered). The problem started showing itself when adding subdomains, at first it was taking a long time to complete and it is now taking forever (we end up cancelling it). Even when it was working it was using 100% of a CPU core until completed, now it sits at the same.

We've tried stopping and starting everything, as well as various ftpmng command options.

Within IIS the only site showing with FTP options is the Plesk host IP.

We're running Plesk 10.0.0 and Windows Server 2008 R2 64 bit, IIS v7.

Anyone got any ideas as to what is wrong? We're currently dead in the water as we can't add subdomains.

 

[Jon L]

We've been doing some more research in to this and have narrowed the problem down.

It appears related to the number of subdomains you have on a subscription, the more you add the slower it gets. It started becoming a problem with about 20 subdomains and gets worse and worse - we currently have about 300 subdomains on one subscription and adding another now takes about 12 hours. The only other noticeable effect it has is when adding applications to the domains within that subscription, installing Drupal for example is taking longer and longer.

Everything else is running fine, including the performance of the subdomains when viewing them through a browser. Everything is ok on other subscriptions, we can add subdomains and install applications such as Drupal without problem except it gets slower and slower as more are added.

I'm guessing the problem is caused by the IIS updates Plesk performs after certain actions.

So what is the solution? Obviously we could limit the subdomains within a subscription but that isn't really an option, especially as we'd have to limit it to about 20 to maintain adequate performance. Is this a bug? Or could we make some configuration changes to speed things up?

 

[Jon L]

I've now raised a support ticket for this problem - #1063164.

 

[Jon L]

The issue has now been acknowledged and passed to the product maintenance team, but it's been with them for a week now without any update. I know it's Xmas, but a week without an update still seems a long time. Is this normal?

 

[Jon L]

At long last Parallels have confirmed it's a bug. Unfortunately there is no work around and no fix. They said it will be fixed in a future update but gave no suggestion as to when that will be. They then marked the ticket as resolved and closed it.

How can a ticket be marked as resolved and closed when it hasn't been fixed????

 

[bascheew]

Same problem

We are having the same problem. We only have about 10 sub-domains, but whenever we make any changes to FTP user accounts and other FTP-related settings the ftpmng.exe process spikes to 100% CPU and the entire Plesk management console locks up. After several hours everything is back to normal. What is the fix for this?

Using Plesk 11.0.9.