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  1. #1
    Registered User matt001's Avatar
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    cPanel VPS going down same time everyday
    Hi Guys,

    For the last few days. Our cPanel VPS server has been going down at the same time due to high load and high memory.

    Nothing has changed on the websites as in code change I am aware of, no files have been changed looking at the modified dates on the files.

    Is anyone here able to help me out to try and track down whats happening. Or let me know what I can look for.


    Regards

    Matthew
    Matthew - A+ Certified PC Technician
    Contact: matthew01@gmail.com

  2. #2
    Crucial Cloud Hosting ross-crucial's Avatar
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    Could be a number of things matt.

    If it is happening at the exact same time every day, then most likely it is a scan / or automated task that is chewing up all the server resources resulting in your VPS crashing.

    Some possible targets that could be causing it,

    - Antivirus (Clanscan comes installed by default i think with cPanel)
    - Spam Assssin (Also comes default with cPanel)
    - cPanel Update (trying to update and using too many resources)
    - cPanel Backup (backup process is causing high load for some reason which is crashing your VPS)

    Some non-standard targets are,

    - CSF Exploit scanner (if you have that installed).
    - Third party backup agent of some kind causing issues.

    I would suggest you login (via SSH) to the server prior to the time it might crash, and monitor the processes running, and see what begins using up resources. You can just run the "top" command to get an idea of what is using CPU etc.

    If it is crashing at some terrible time like 4am, then you could consider installing some monitoring software like Monitis (use the free trial!). A number of these monitoring applications will record what processes are using what resources (which will help you!)

    Without much info from you I have chosen some common issues, hopefully points you in the right direction.

  3. #3
    Install Cloudlinux it will fix the majority of these issues.
    Just as long as you set your resource limits so that the server still has enough resources to run without crashing.
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  4. #4
    Crucial Cloud Hosting ross-crucial's Avatar
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    Quote Originally Posted by Chaddy View Post
    Install Cloudlinux it will fix the majority of these issues.
    Just as long as you set your resource limits so that the server still has enough resources to run without crashing.
    Yep good point Chaddy, could be a specific website doing something at that time chewing up all the resources.

  5. #5
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    If you know the time when this happens, it would be a good idea to login to the server before the said time and check for what is causing the load.

    You can use the "top" command to monitor and identify who is causing the load.
    Admin-Ahead :: A BrookWin Company
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  6. #6
    Registered User matt001's Avatar
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    Thanks Guys for your help. I will log into the vps and run the top command and see what it shows.

    I am going to move one of the sites I think maybe the issue off the vps and onto another server and see if the high usage comes down.

    Their are only 3 sites on the vps currently.


    Right at the moment cPanel is showing the Load Averages: 1.24 1.31 1.65

    Matthew
    Matthew - A+ Certified PC Technician
    Contact: matthew01@gmail.com

  7. #7
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    "top" is a very effective command to find out who is consuming the most of your resources.

    Could be a high mysql usage which you can check: https://admin-ahead.com/forum/genera...usageslowness/

    As for the load, you may use : Glances: A monitoring tool for Linux systems - General Discussion - Admin-Ahead Community

    And in case you need alerts for load, you can use the simple script at: A Simple Server Load Alerts Shell Script - General Linux - Admin-Ahead Community

    Hope that helps.
    Admin-Ahead :: A BrookWin Company
    System Administration On Core
    SKYPE:"admin-ahead"PHONE: +91-9387005050

  8. #8
    Registered User matt001's Avatar
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    Thanks for all your help, I managed to track down the issue.

    Matthew
    Matthew - A+ Certified PC Technician
    Contact: matthew01@gmail.com

  9. #9
    Registered User
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    Glad you got it fixed
    Admin-Ahead :: A BrookWin Company
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