Plesk 12.x / Linux :: Server Become Very Slow After Some Hours Uptime

Nov 23, 2014

where to search. It appear thaht my free memory decrease each minute after reboot.When i restart it's ok but i see minute after minute the free memory is decreasing...

The command top don't show special process which explain my problem. I don't understand how a process can kill my memory but not immediatly but from reboot to after 4 or 5 hours uptime.

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Can Uptime Monitoring Services, Slow A Server?

Nov 19, 2008

Does websites uptime monotoring tools and services like for example: pindom, siteuptime or host-tracker can in any way affect the server or vps performance of the website being monitor.

I think that a Monitor service that do a test every 30 minutes dont cause any inpact, but if the interval on check test is every 1 minute.

Can this every minute check affect in any way the performance of a server or vps?

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Plesk 11.x / Linux :: Qmail Delivery From Certain Senders Takes Up To 10 Hours

May 9, 2014

I am running CentOS 5.10 (Final) with Plesk 11.5.30 Update #44 and since a few days have the strangest problem with incoming emails from certain hosts.

The email from known senders produces a relaylock message like:

/var/qmail/bin/relaylock [12345]: mail from (

From what I was able to gather this is regular behaviour with plesk and qmail, indicating that the senders' mailserver has made contact.

Then nothing happens. For hours. 7-10 to be exact. Then the mail is being processed and delivered.

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Plesk 11.x / Linux :: Backup Very Slow?

Jul 17, 2014

We have a problem with a Plesk backup. We have about 300 domains, the scheduled task starts 23.30 and takes about 16 hours and thats not normal. Before it took about 9-10 hours for 'All configuration and content' and that was too long, so we set up for 'All configuration and content except mail'. It worked for a few days and then it started to take 14 - 16 hours for a server backup. We use Plesk 11.5 on CentOS 6 64bit.

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Plesk 12.x / Linux :: FTP Connection Slow And Fails

Jul 1, 2014

OS CentOS 6.5 (Final)
Plesk version 12.0.18 Update #6, last updated at July 2, 2014 11:13 AM

The system is up-to-date; last checked at June 27, 2014 04:43 AM

All current websites on the server seem to work fine any new subscriptions we cannot get working at all.

We can connect via FTP to new sites SOMETIMES - just cant get directory listing. When we can connect and get into a directory it slows down.

In Active mode:
Response:425 Unable to build data connection: Connection refused
Error:Failed to retrieve directory listing​
Install Wordpress via the Parallels panel it loads and says it is all there, just can't log or display any pages. The default Parallels page is displayed.

Upload a html page via the File Manager in Parallels and it displays the default Parallels page.

Unpack the Wordpress tar file via File Manager and it displays the default Parallels page.

The Wordpress feature in Parallels says it is working fine, can't display any page, can't log in as it returns a 404 page or the default Parallels page.

Create a site in Presence builder and Parallels says there is a site. The default Parallels page is displayed when opening the site.

Go to DOMAINS and there is 0mb in space used and there are files listed in the File Manager - none of which can be displayed.

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Plesk 12.x / Linux :: FTP Very Slow (with Firewall / Mod Security Enabled)

Jun 26, 2014

After upgrading to Plesk 12 the FTP connection has become very slow. Mode Security, Fail2Ban and Plesk Firewall have been enabled, the security is set to force sFTP and maximum security and in /etc/proftpd.d/ a conf file has been added to set the passive ports that have been opened in the Plesk Firewall (60000 to 62000)

Turning off the Mod Security does not solve the slow connection.

What can we do to detect the cause of the problem?

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Plesk 12.x / Linux :: Control Panel Is Very Slow To Load?

Apr 17, 2015

I've been having a few issues with the control panel navigation is running slow even though I have heaps of resources available and free. The server is located locally and have no problems surfing websites attached to the same server.

When I login as admin, it can take 25 seconds to load into the first screen.

CPU GenuineIntel, Intel(R) Xeon(R)CPU E5649 @ 2.53GHz
Version Parallels Plesk v12.0.18_build1200140606.15 os_CentOS 6
OS CentOS 6.6 (Final)
Memory Available 6GB used 2.5-3GB
HDD: 300GB/ approx 130GB Free

I have tried issuing a /etc/init.d/psa restart command and has made no difference.

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Plesk 11.x / Linux :: Slow SMTP Response From Qmail

Jun 16, 2015

We are seeing intermittent slow responses from SMTP on a RHEL6 server running Qmail on Plesk 11.5. The response is being measured from a remote Zabbix server.

The response time seems to be slow (>10s) for a period of 2-3 minutes and then returns to normal (<1s). All other services continue to be ok during the period of slowness.

The server_args line in /etc/xinetd.d/smtp_psa already contains "-Rt0" and all the DNS servers in /etc/resolv.conf are resolving properly.

From looking at the maillog file the server was receiving about 35 SMTP connections a minute at the time of the slowdown. We have the server configured to use 2 x RBL's.

I wonder if we are hitting a limit on the maximum amount of SMTP connections. The file /var/qmail/control/concurrencyincoming does not exist so, according to the Qmail manual, there shouldn't be a limit on the number of incoming SMTP connections.

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Plesk 12.x / Linux :: API Requests Suddenly Extremely Slow

May 4, 2015

In the last few days the responses from Plesk's XML API have been extremely slow. It's now taking an average of 45 seconds to handle an XML API request where it used to be more around 5 seconds. What would cause that? What service handles these requests on the server so I can try rebooting it?

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Plesk 12.x / Linux :: Control Panel And Websites Are So Slow

Mar 26, 2015

My Plesk installation and websites are slow

8G ram
100 G Harddisk

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Plesk 12.x / Linux :: Ubuntu 12.04 Very Slow Especially With Android Studio

Aug 24, 2014

I have an old laptop with the following specification: Memory: 485 MiB, Processor: Genuine intel CPU T2300 @ 1.66 GHz Γƒβ€”2, OS Type: 32 bit, Disk: 78.1 GB,

I installed on it Ubuntu 12.04 LTS and I noticed that the overall system is very slow in responding. I tried to search about that in the internet and I found some articles talking about how to make Ubuntu 12.04 LTS run fast I applied all what they said including download LXDE desktop environment and then nothing different in the system response time.

Then I need to develop some android applications so, I download Android Studio (Beta) 0.8.6. The problem became worse than before whenever I tried to open the Android Studio the screen is frozen for some minutes then it took time to download the projects and initialize the work space also, when I tried to move the cursor he is move very slowly. When I tried to run my first application on the AVD it took three hours and still not run yet.

I delete the Android Studio and install it again several times, I was trying to solve the problem but still nothing change.

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Plesk 12.x / Linux :: Hosting Wordpress - Navigation Between Pages Slow

Jan 11, 2015

I`ve got a problem with plesk when hosting Wordpress, when using Wordpress navigating between the pages (front-end and back-end) server time seems to be 15 sec.I`ve checked CPU usage and that stays under 5%.

When I install Drupal or Concrete5 or any other application that uses PHP with MYSQL it runs very fast.I`ve already fine-tuned PHP / Apache2 / Nginx & Mysql to get the max possible performance out of it.

What i`m using for hardware:
i7 920 2.6Ghz
24GB Ram
LSI Raid controller 9260-8i
RAID 10, 6 WD Black disks (internal speed goes about 450mb/sec)
RAID 1, 2 x Samsung SSD Evo 840

ESXI 5.5, optimised for maximum performance. (no standard config)
PLESK VM has 8 cores, 16GB Ram and I/O access priority set to max.

If I move the PLESK VM to the SSD datastore it makes no difference.Again, the problem only happens when i`m installing Wordpress..I Also did a manual install of Wordpress, same issue..I`m going to try the older version of Wordpress (3.9) so see i`m having the same problems..Using the latest plesk 12 on Ubuntu 14 with trail license at the moment.

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Plesk 12.x / Linux :: Php-cgi High Cpu Load Website Running Slow

Dec 10, 2014

Today, without any change on the server side my single running website on my server started running low. After checking the running processes I realised I have these 8 processes running with high cpu load something that didn't had before.

4245 user 20 0 283m 103m 10m R 85.1 0.3 6:44.88 /usr/bin/php-cgi -c /var/www/vhosts/system/domain/etc/php.ini
4243 user 20 0 241m 68m 8736 R 83.8 0.2 6:33.45 /usr/bin/php-cgi -c /var/www/vhosts/system/domain/etc/php.ini
4259 user 20 0 254m 82m 8720 R 83.5 0.3 6:11.00 /usr/bin/php-cgi -c /var/www/vhosts/system/domain/etc/php.ini
4244 user 20 0 282m 103m 10m R 82.1 0.3 6:46.49 /usr/bin/php-cgi -c /var/www/vhosts/system/domain/etc/php.ini
4247 user 20 0 248m 76m 8712 R 78.8 0.2 6:50.31 /usr/bin/php-cgi -c /var/www/vhosts/system/domain/etc/php.ini
4264 user 20 0 258m 85m 8712 R 72.9 0.3 6:49.83 /usr/bin/php-cgi -c /var/www/vhosts/system/domain/etc/php.ini

apache error log doesn't show any warnings, errors.

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Plesk 11.x / Linux :: Drupal Website - Pages Load Too Slow

May 1, 2014

VPS hosting, stats in my sig below. Have poor performance with a drupal and civicrm(drupal based) website and looking to troubleshoot.

Main issue is pages take too long to load, sometimes over 5 seconds and more! Below is my.cnf and MYSQLtuner results.

So my.cnf



[Code] .....

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VPS Incredibly Slow, Huge Numbers Of Slow MySQL Queries For Plesk/Watchdog

Nov 11, 2008

I've got 25 domains on a Virtuozzo/Plesk8.6/CentOS5 VPS. Each domain has one up-to-date install of WordPress, most have very little traffic (average 200mb per month), maybe 2 domains get 5-7gb traffic per month.

I monitor port 80 connections and rarely see more than 10 at a time.
That should in my opinion be no problem at all for a VPS with 768mb guaranteed ram and 2.4ghz cpu. I've got 30gb hard drive spare too.

But.... about 8 or 10 times a day it grinds to a complete halt: server load at 500-1000%, sites timing out, plesk takes 3mins to load, often I can't even connect with SSH, and the plesk web server, apache

INSERT INTO module_watchdog_sys_stat (time, type, value, service_id) VALUES(FROM_UNIXTIME(1226404705), 'MAINMEM_USAGE', 17472, 11);

80 seconds sounds like a huge amount of time for a MySQL insert to me! Does anyone know if this is likely to be the cause of my trouble? Some problem with Plesk and the database? Or could it be something else?

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Godaddy Linux Server Response Very Slow

Jul 11, 2008

Godaddy linux server respons very slow

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Plesk 11.x / Windows :: Restore Panel From Backup File Up To 11 Hours

Sep 16, 2013

I restored Plesk Panel from web-gui up to 11 hours, is it normal?I have more that 300 accounts.

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Leaseweb: 43 Hours Server Down! What Can I Do

Oct 7, 2008

I'm not a direct client of Leaseweb, but it's not a secret that my domain is pointing at their servers.

I purchased a shared hosting plan from a reseller and since more than 43 hours my domain is down! My provider (the reseller) said he's waiting for Leaseweb support... according to my informations, in more than 24 hours they just made a reboot of the server!

I'm really bored of waiting with no chance of intervention! My provider says he can't do anything from his side, i can't contact Leaseweb cause i'm not a client... please, help, what can i do?

I need my site back online!

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Server Spec Within The Next 24 Hours

Aug 18, 2008

• Located in the USA

• Linux Ubuntu 7.1/8.04 VPS

• HyperVM Control Panel

• IP Address – 32 (must be u.s ips)

• 128Meg – 256Meg Dedicated RAM (minimum)

• 100 – 150Gig Bandwidth (minimum)

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Anyway To Auto Reboot Server Every 6 Hours?

May 11, 2009

anyway to auto reboot server every 6 hours?

will this effect on the server?

i'm running on CentOS 5 and whm

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Host Which Would Set Up Server Or VPS Fast (up To 1-2 Hours)

May 19, 2008

Somebody posted a video in my website which got viral. Many big websites (like gizmodo) embeded it and I've maxed out my 100mbit/s connection. Traffic is increasing and my website started crashing.

I want to move that video to other server ASAP so my website would stop crashing.

Do you know any host which would set up server or VPS fast (up to 1-2 hours)?

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How To Add Cron To Restart Apache Server Every Three Hours

May 5, 2008

My host is experiencing "issues" with my WordPress. It keeps going above their upper limit of open MySQL connections. So, while I am diagnosing it, I need to restart the server every few hours to avoid it going down.

How do I write a cron to restart Apache every 3 hours?

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Can A Server Really Have 99% Uptime

Sep 27, 2008

I am getting increasing frustrated each day as I went from shared server to shared server and now I'm on a VPS and my server is typically down 2-5% per day. Is this normal? Is it to much to expect 99% uptime?

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Server Uptime

Nov 25, 2007

Is there any tool that I can use to check my site uptime?

I am pissed-off with my site is on/off and I want to show them result that I cannot work on it.. I feel really bad..

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Email Arrive With -2 Hours Difference From Server Time Config.

Jun 15, 2009

On a rhel 5.3 + cpanel server, i have a time problem.

Web apps, as joomla show articles with a -2 hours time difference, or even webmail clients like roundcube are showing a wrong time when an email arrives. It seems this apps are not picking up the server time.

Both things (joomla and webmail) should use the configured server time.

I know Joomla can be fixed using the time zone option, and webmail too.. but in a server with over 300 websites, there are many joomlas installations and even more mailboxes...

/etc/sysconfig/clock have the right time zone.

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Server Uptime Monitoring

Mar 27, 2009

Who would you suggest to hire for simple uptime and service monitoring?

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How Can You Increase The Uptime Of Your Server

Nov 3, 2008

how can you increase the uptime of your server?

can i ask how could you increase the uptime of your server?

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Server Uptime Or Support

Aug 13, 2008

Would you rather have your site hosted on a server that goes down frequently, but with support that is constantly monitoring it, and resolves all of your issues in a timely fashion?


Would you rather have your site hosted on a very reliable server, but when a problem does arise, support is either not knowledgeable enough, or is incredibly slow at fixing the problem?

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How Can I Check Uptime On My Server

Aug 31, 2007

How can I check uptime or how to check downtime on my server?My members told me that they can not login to my site and it shows: Page can not found or Sever not found.

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Monitor Uptime Of Server

Jun 13, 2007

Is there any script or program that can ping or load a page from a server on a regular basis to check if the server is still running?

For example using a shared hosting server B to ping dedicated server A to see if A is still running. Else B will send a email to the sys admin. Something along this line.

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Dedicated Server Backup/Uptime

Jun 17, 2008

I currently run a business that has 125 to 150 domains, with 150GB worth of files and databases.

Right now my business is hosted on Hostgator. The files and database are not 100% protected if a hard drive crashes. I Found and they take all my hosting problems of 100% uptime and backups away, but they also create a few because I don't get command line access to a server.

We use GIT to manage the upgrade and development process of the application, so we need command line access.

My question to you is:

How do you handle this backup issue?

If I can take my focus off of making sure there is 100% uptime and backups if something crashes automatically, I can grow my business much faster.

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