Server takes long time to shutdown or reboot

Solution Verified - Updated -

Environment

  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Issue

  • Server taking long time to shutdown.
  • reboot.target taking long time and forcefully stopped during reboot

Resolution

  • Remove or comment the configurations to start the service using /etc/rc.local file.

  • Write systemd unit file to start/stop the third party applications using proper dependencies.

Root Cause

  • The third party applications 'ctmemd' and 'ctmsrvd' were started with the help of rc.local file.

    # vi /etc/rc.local

  • The system had no mechanism to stop the application during system shutdown. Hence the reboot.target wait for the time (as per configured timeout value).

  • Starting from RHEL7 init scripts are considered as deprecated and any application should start using systemd unit files.
    How to convert init scripts to systemd units files

Diagnostic Steps

  • The debug log shows additional logs during system shutdown and helps to find out possible culprit. Enable temporary debugging for systemd using below command.

    # systemd-analyze set-log-level debug

  • Check content of /etc/rc.local

    # cat /etc/rc.local

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