Bind9 fails to send notify message to systemd and keeps being restarted

[Stephen Worthington]

I am running bind9 on Ubuntu 22.04 and it has just been updated from the PPA to version i1:9.18.11-1+ubuntu22.04.1+isc+2. Now every time it starts up, it seems to be running correctly, but systemd times out and restarts it. It appears that it is now failing to send notify messages to systemd. To fix this, I have added a systemd override:

[Service]
Type=simple

and that makes it stay running. However, it also means that the systemd watchdog is no longer checking that it is still running.

lsb_release -rd
Description: Ubuntu 22.04.1 LTS
Release: 22.04

apt-cache policy bind9
bind9:
  Installed: 1:9.18.11-1+ubuntu22.04.1+isc+2
  Candidate: 1:9.18.11-1+ubuntu22.04.1+isc+2
  Version table:
 *** 1:9.18.11-1+ubuntu22.04.1+isc+2 500
        500 http://ppa.launchpad.net/isc/bind/ubuntu jammy/main amd64 Packages
        100 /var/lib/dpkg/status
     1:9.18.1-1ubuntu1.3 500
        500 http://nz.archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages
        500 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages
     1:9.18.1-1ubuntu1 500
        500 http://nz.archive.ubuntu.com/ubuntu jammy/main amd64 Packages

[Lena Voytek (lvoytek)]

Thank you for the bug report. Unfortunately we do not have access to the isc's PPA to fix this bug, but this is a known issue. It has been fixed in the upcoming Lunar release using a patch to allow the service to use sd_notify to inform systemd that the process has started. We are also working on an update for the default Ubuntu version in 22.04 (LP: #2003586) which will have this fix in place. In the meantime you can contact the isc team directly for help with fixing the PPA:

https://launchpad.net/~isc

[Utkarsh Gupta (utkarsh)]

Ubuntu 22.10 (Kinetic Kudu) has reached end of life, so this bug will not be fixed for that specific release.