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.

SOLVED glibc update on CentOS 7.4 results in Apache failure

Discussion in 'General Discussion' started by PeteS, Sep 14, 2017.

  1. PeteS

    PeteS Well-Known Member

    Joined:
    Jun 8, 2017
    Messages:
    84
    Likes Received:
    8
    Trophy Points:
    8
    Location:
    Oregon
    cPanel Access Level:
    Root Administrator
    All sites went down after today's 66.0.19 update.

    WHM and cPanel were fine on those domains.

    In WHM it said "You must reboot the server to apply software updates."

    and

    Apache status reported: "Failed to receive status information from Apache.
    Unable to connect to local httpd server."

    All services reported up (including httpd).

    Apparently an automated Apache restart fixed the httpd issue.

    I manually rebooted to apply updates.

    Note: according to the update log the update took about 15 minutes to complete. Web services dropped almost immediately when it started, then 15 minutes after it completed (30 minutes in) Apache restarted and services came back. But I didn't manually restart Apache. Maybe cPanel monitoring is set for 15 minutes?
     
    #1 PeteS, Sep 14, 2017
    Last edited by a moderator: Sep 14, 2017
  2. cPanelMichael

    cPanelMichael Forums Analyst
    Staff Member

    Joined:
    Apr 11, 2011
    Messages:
    42,734
    Likes Received:
    1,706
    Trophy Points:
    363
    cPanel Access Level:
    Root Administrator
    Hello,

    Internal case CPANEL-15830 is open to address an issue where updates to the glibc package in CentOS 7.4 result in Apache failing on systems using EasyApache 4 and Mod_Security. Here's an example of the output you will see in /usr/local/apache/error_log when this happens:

    Code:
    httpd: Syntax error on line 27 of /etc/apache2/conf/httpd.conf: Syntax error on line 14 of /etc/apache2/conf.modules.d/800-mod_security2.conf: Cannot load modules/mod_security2.so into server: /lib64/libm.so.6: symbol __strtold_nan, version GLIBC_PRIVATE not defined in file libc.so.6 with link time reference
    This is automatically fixed on systems with monitoring enabled for "Apache Web Server" in "WHM >> Service Manager". Otherwise, manually restarting Apache using "WHM Home » Restart Services » HTTP Server (Apache)" or with the following command will correct this issue:

    Code:
    /scripts/restartsrv_httpd
    I'll monitor the status of case CPANEL-15830 and update this thread with more information as it becomes available.

    Thank you.
     
    #2 cPanelMichael, Sep 14, 2017
  3. PeteS

    PeteS Well-Known Member

    Joined:
    Jun 8, 2017
    Messages:
    84
    Likes Received:
    8
    Trophy Points:
    8
    Location:
    Oregon
    cPanel Access Level:
    Root Administrator
    Yes, it was exactly as you described, as well as the solution.

    Question about WHM >> Service Manager, though. I verified that the config for it is set to monitor every 5 minutes, but it clearly took 15 minutes. Could this indicate an issue somewhere?

    Also my r1soft backup began failing after this update. At first I thought all of this was due to the 66.0.19 cPanel update, but the kernel update coincided with that and seems to be the cause. FYI I was not yet on 7.4 when all this happened, I was still on 7.3.

    Aany further details would be welcome.
     
    #3 PeteS, Sep 17, 2017
  4. cPanelMichael

    cPanelMichael Forums Analyst
    Staff Member

    Joined:
    Apr 11, 2011
    Messages:
    42,734
    Likes Received:
    1,706
    Trophy Points:
    363
    cPanel Access Level:
    Root Administrator
    #4 cPanelMichael, Sep 18, 2017
  5. cPanelMichael

    cPanelMichael Forums Analyst
    Staff Member

    Joined:
    Apr 11, 2011
    Messages:
    42,734
    Likes Received:
    1,706
    Trophy Points:
    363
    cPanel Access Level:
    Root Administrator
    Hello,

    To update, the following case is planned for inclusion in an EasyApache 4 maintenance release on 09-20-2017 to ensure Apache is restarted whenever glibc is updated through YUM:

    EA-6808: restart apache when glibc is updated

    Thank you.
     
    #5 cPanelMichael, Sep 19, 2017
(You must log in or sign up to post here.)
Loading...
Similar Threads - glibc update CentOS
  1. DevilBear

    Updating glibc on CentOS 6?

    DevilBear, Oct 8, 2017, in forum: General Discussion
    Replies:
    1
    Views:
    268
    cPanelMichael
    Oct 10, 2017
  2. rhm.geerts

    New Thread Global zone update command not working?

    rhm.geerts, Apr 20, 2018 at 8:07 PM, in forum: Bind / DNS / Nameserver Issues
    Replies:
    0
    Views:
    5
    rhm.geerts
    Apr 20, 2018 at 8:07 PM
  3. Nirjonadda

    You must reboot the server to apply software updates

    Nirjonadda, Apr 20, 2018 at 11:43 AM, in forum: General Discussion
    Replies:
    6
    Views:
    34
    Nirjonadda
    Apr 20, 2018 at 1:47 PM
  4. abdulwahab

    Server Slow after update memory through php.ini

    abdulwahab, Apr 13, 2018, in forum: Workarounds and Optimization
    Replies:
    1
    Views:
    58
    cPanelLauren
    Apr 13, 2018
  5. cPStacy

    EasyApache 4 Update - April 5, 2018

    cPStacy, Apr 5, 2018, in forum: EasyApache
    Replies:
    0
    Views:
    153
    cPStacy
    Apr 5, 2018

Share This Page