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Plesk suddenly slowed way down

KDawson

New Pleskian
I have Plesk 8.2.1 on a VPS running Fedora 7. Admin access is configured to use the standard port 8443. Some time in the last few weeks Plesk became extremely slow to respond -- anywhere from 30 seconds to 2-1/2 minutes or more each time I click for a new page, regardless of whether or not that page has been visited recently. This includes the initial login page.

Normally I use Safari under Mac OS X 10.6.2. I just opened Firefox and clicked a link to get to the Plesk login, and 2:40 went by before the "Please wait, loading" vanished from the login screen.

When Plesk is loading a page, for example some domain's Mail page, the small icons representing the available functions come in very slowly. Often the page will hang with one or two icons remaining to fill in (and "Please wait, loading" over the screen). If I interrupt the load and then reload, sometimes the page completes in 15 or 30 seconds the second time -- but never in 1 or 2 seconds, as it always had for a couple of years prior to the slowdown.

The VPS hosts a number of other domains and sites (served from port 80), and all of them are as fast as they ever were.

The Plesk slowdown happens whether I access the site from home, from work, or from a WiFi-enabled cafe. (My connectivity at home is via Verizon FiOS, 25/15 Mbps.)

I have restarted httpd on the VPS several times, and it hasn't affected the slowdown. The VPS itself has been up for 258 days.

What could be causing this and how do I fix it?

Thanks for any suggestions.
 
httpd is Apache service for your vhosts on this VPS. but if you want to restart Plesk interface you should restart psa service but not httpd. Try it. I hope it will help.
 
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