Please whitelist cPanel in your adblocker so that you’re able to see our version release promotions, thanks!

The Community Forums

Interact with an entire community of cPanel & WHM users!
  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

RHEL 4 and Account Creation / Transfer / Upgrade / Termination crashes servers

Discussion in 'General Discussion' started by elenlace, Jan 23, 2007.

  1. elenlace

    elenlace Well-Known Member

    Joined:
    Sep 10, 2002
    Messages:
    101
    Likes Received:
    0
    Trophy Points:
    166
    Location:
    US
    I have had this issue now on and off for the last 3 months, on very seldom occassions, my RHEL 4 servers crash during account creation / transfer / upgrade / termination apparently anything related to quotas.

    I have seen I'm not alone on this issue, several users have reported it. I was wondering what would happen if I turn quotas off, can I still control users space? It would be a temporary measure until Red Hat fixes the bug.

    What do you think?
     
    #1 elenlace, Jan 23, 2007
  2. elenlace

    elenlace Well-Known Member

    Joined:
    Sep 10, 2002
    Messages:
    101
    Likes Received:
    0
    Trophy Points:
    166
    Location:
    US
    #2 elenlace, Jan 24, 2007
  3. chirpy

    chirpy Well-Known Member

    Joined:
    Jun 15, 2002
    Messages:
    13,470
    Likes Received:
    21
    Trophy Points:
    463
    Location:
    Go on, have a guess
    If you want help from cPanel you need to log a ticket with them through your license provider.

    If you turn off linux disk quotas then there'd be no check at all on the amount of space clients can use.
     
    #3 chirpy, Jan 24, 2007
  4. zigzam

    zigzam Well-Known Member

    Joined:
    May 9, 2005
    Messages:
    206
    Likes Received:
    0
    Trophy Points:
    166
    Its a RedHat Kernel bug.
     
    #4 zigzam, Jan 24, 2007
  5. MN-Robert

    MN-Robert Well-Known Member

    Joined:
    Feb 19, 2003
    Messages:
    203
    Likes Received:
    0
    Trophy Points:
    166
    #5 MN-Robert, Jan 25, 2007
  6. budway

    budway Well-Known Member

    Joined:
    Apr 16, 2003
    Messages:
    189
    Likes Received:
    0
    Trophy Points:
    166
    How many harddrives you have?

    If more than one share partition style please (from console df -h).
     
    #6 budway, Jan 28, 2007
    Last edited: Jan 28, 2007
  7. elenlace

    elenlace Well-Known Member

    Joined:
    Sep 10, 2002
    Messages:
    101
    Likes Received:
    0
    Trophy Points:
    166
    Location:
    US
    Hi budyway,

    This is the result from df -h

    Filesystem Size Used Avail Use% Mounted on
    /dev/sda5 65G 49G 13G 80% /
    /dev/sda1 99M 17M 77M 18% /boot
    /dev/sda3 1012M 175M 786M 19% /tmp
    none 1013M 0 1013M 0% /dev/shm
    /dev/sdb1 68G 53G 12G 83% /backup
    /tmp 1012M 175M 786M 19% /var/tmp
     
    #7 elenlace, Jan 29, 2007
  8. budway

    budway Well-Known Member

    Joined:
    Apr 16, 2003
    Messages:
    189
    Likes Received:
    0
    Trophy Points:
    166
    Hi Elenlace,

    First:
    Have you tested the drives?

    to run background test:
    smartctl -t long /dev/sda

    to view:
    smartctl -a /dev/sda

    Secound:
    What kernel and DC (If TP what server/dc of TP)?

    Last question when your server goes down does it still respond to ping and is a fsck required (does the server come back fast 1-5 minutes after the reboot).
     
    #8 budway, Jan 29, 2007
    Last edited: Jan 29, 2007
  9. budway

    budway Well-Known Member

    Joined:
    Apr 16, 2003
    Messages:
    189
    Likes Received:
    0
    Trophy Points:
    166
    Hi Elenlace,

    Also have you noted if your server only start's to crash when it begins to use swap (early swap usade like about 10MB of swap)?
     
    #9 budway, Jan 30, 2007
  10. MN-Robert

    MN-Robert Well-Known Member

    Joined:
    Feb 19, 2003
    Messages:
    203
    Likes Received:
    0
    Trophy Points:
    166
    Dude this is a kernel bug that has been confirmed. Our servers have 8gb ram and sit at around 15% usage so its not a swap issue.
     
    #10 MN-Robert, Jan 30, 2007
  11. MN-Robert

    MN-Robert Well-Known Member

    Joined:
    Feb 19, 2003
    Messages:
    203
    Likes Received:
    0
    Trophy Points:
    166
    #11 MN-Robert, Jan 30, 2007
  12. budway

    budway Well-Known Member

    Joined:
    Apr 16, 2003
    Messages:
    189
    Likes Received:
    0
    Trophy Points:
    166
    This issue afect's only RHE 4.0 our RHE 3.0 also?
     
    #12 budway, Jan 30, 2007
  13. elenlace

    elenlace Well-Known Member

    Joined:
    Sep 10, 2002
    Messages:
    101
    Likes Received:
    0
    Trophy Points:
    166
    Location:
    US
    Believe me is not related to the drives, one of my servers had this problem after just 2 days, it actually happenned after a transfer of accounts from another server. And yes the drives have been tested by techs at TP.

    It has happenned both on servers in EV1's DC1 and DC2 so I don't see a correlation there. Is definately a Red Hat Kernel Bug and I don't see it has been fixed on the latest 42.0.8 kernel just out a few days ago.

    Maybe Cpanel and the DCs can put some pressure on Red Hat to fix this as it is definately affecting several of us. It happens and when your server goes down it happened to me me once that it required a FSCK and it wouldn't boot again, so I had to restore the server using backups, I had around 20 hours of downtime on a weekday, believe me not fun at all.

    This is a huge issue.
     
    #13 elenlace, Jan 31, 2007
  14. elenlace

    elenlace Well-Known Member

    Joined:
    Sep 10, 2002
    Messages:
    101
    Likes Received:
    0
    Trophy Points:
    166
    Location:
    US
    I believe is RHEL 4 only. I have 3 servers with RHEL 4 and 8 servers with RHEL 3 and I'm waiting for this issue to be fixed before I continue a migration to RHEL 4.
     
    #14 elenlace, Jan 31, 2007
  15. elenlace

    elenlace Well-Known Member

    Joined:
    Sep 10, 2002
    Messages:
    101
    Likes Received:
    0
    Trophy Points:
    166
    Location:
    US
    Nop, it happens when you create a new account, upgrade an account, terminate an account only, and of course during transfers as it calls the create a new account process.

    Everything related to changing or creating quotas for a user seems to affect this.

    If it continues to go on for several weeks without fix, I might consider disabling quotas for a while and just keep an eye on my users.
     
    #15 elenlace, Jan 31, 2007
  16. MN-Robert

    MN-Robert Well-Known Member

    Joined:
    Feb 19, 2003
    Messages:
    203
    Likes Received:
    0
    Trophy Points:
    166
    We are testing the new kernel, I'll let you know how it goes.
     
    #16 MN-Robert, Jan 31, 2007
(You must log in or sign up to post here.)
Loading...
Similar Threads - RHEL Account Creation
  1. cPanelJCNewton

    CentOS, CloudLinux RHEL 5 - End of Life Notice

    cPanelJCNewton, Apr 10, 2017, in forum: Workarounds and Optimization
    Replies:
    0
    Views:
    1,448
    cPanelJCNewton
    Apr 10, 2017
  2. ally1

    Limit Max Incoming e-mails per account?

    ally1, Apr 19, 2018 at 3:14 AM, in forum: E-mail Discussions
    Replies:
    2
    Views:
    48
    cPanelMichael
    Apr 19, 2018 at 10:52 AM
  3. ev88

    SOLVED Adding a 'default' email account

    ev88, Apr 18, 2018 at 5:28 PM, in forum: E-mail Discussions
    Replies:
    7
    Views:
    68
    cPanelLauren
    Apr 20, 2018 at 12:26 PM
  4. kjdion84

    SOLVED Gmail "send mail as" using cPanel mail account auth error

    kjdion84, Apr 18, 2018 at 2:12 PM, in forum: General Discussion
    Replies:
    3
    Views:
    37
    cPanelLauren
    Apr 19, 2018 at 6:50 AM
  5. webalfa

    Find accounts that have hit hourly emails limit?

    webalfa, Apr 18, 2018 at 2:47 AM, in forum: E-mail Discussions
    Replies:
    2
    Views:
    67
    cPanelLauren
    Apr 18, 2018 at 9:02 AM

Share This Page