Search Engine: Elastic

Article ID: 132371, created on Mar 13, 2018, last review on Mar 13, 2018

  • Applies to:
  • Operations Automation 7.3


During brands synchronization several tasks 'H2E Operation on host #xxx' have been found in failed state with the following output:

Task name H2E Operation on host #xxx

Internal error: /sbin/service /sbin/service httpd graceful failed with code 1 saying: STDOUT: '' STDERR 'Job for httpd.service invalid.

At the same time httpd service became unavailable on Branding UI hosts causing outage of control panel. All other OA services are working correctly.

In /var/log/messages the following errors are logged:

abrt-hook-ccpp: Process 19637 (httpd) of user 0 killed by SIGSEGV - dumping core
systemd: httpd.service: main process exited, code=dumped, status=11/SEGV
abrt-server: Generating core_backtrace
httpd: httpd not running, trying to start
kill: kill: cannot find process ""
systemd: httpd.service: control process exited, code=exited status=1

In error_log of Apache:

AH00060: seg fault or similar nasty error detected in the parent process

Version of httpd package is httpd-2.4.6-67.el7.centos.6.


Synchronization of brands performs a series of rapid Apache service reloads on all branding UI nodes in scope of 'H2E Operation on host #xxx' task. But due to software-related issue on RedHat side, Apache crashes after several reloads, resulting in the outage of control panel.

This issue is marked as 'Fixed' on RedHat side, but it still could be reproduced with repository-supplied httpd package.


Workaround should be applied on all affected Branding UI hosts to prevent httpd from crashing:

  1. Modify file /usr/lib/systemd/system/httpd.service by changing the line:

    ExecReload=/usr/sbin/httpd $OPTIONS -k graceful


    ExecReload=/bin/sleep 0.5 ; /usr/sbin/httpd $OPTIONS -k graceful
  2. Propagate changes to systemd:

    # systemctl daemon-reload
  3. Start httpd (if it is stopped):

    # service httpd start

5356b422f65bdad1c3e9edca5d74a1ae caea8340e2d186a540518d08602aa065 e12cea1d47a3125d335d68e6d4e15e07 dd79f16c76b9dca75205ab5e9f5465ea 1941880841f714e458ae4dc3d9f3062d

Email subscription for changes to this article
Save as PDF