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[Bug 1819033] Re: php7.0-fpm_7.0.33-0ubuntu0.16.04.2 update stop fpm service for 10 minutes

To: group.of.nepali.translators@xxxxxxxxxxxxxxxxxxx
From: Robie Basak <1819033@xxxxxxxxxxxxxxxxxx>
Date: Wed, 15 May 2019 11:48:03 -0000
Reply-to: Bug 1819033 <1819033@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
> Otherwise, I'll mark this "Won't Fix" for php7.0 and reject from the
queue when I next see this again after a couple of weeks.

As there have been no objections, I'm rejecting this from the queue and
marking the SRU "Won't Fix" for the reasons above.

** Also affects: php7.0 (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Changed in: php7.0 (Ubuntu)
       Status: Triaged => Fix Released

** Changed in: php7.0 (Ubuntu Xenial)
       Status: New => Won't Fix

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https://bugs.launchpad.net/bugs/1819033

Title:
  php7.0-fpm_7.0.33-0ubuntu0.16.04.2 update stop fpm service for 10
  minutes

Status in php7.0 package in Ubuntu:
  Fix Released
Status in php7.0 source package in Xenial:
  Won't Fix

Bug description:
  [Impact]

  Since php7.0 still follows the compat level 9 defaults of stopping the
  service at the start of an upgrade, and then starting it again at the
  end of the upgrade, there is potentially a long period of the service
  being stopped when there are many packages to upgrade, leading to
  unwanted downtime.

  [Test Case]

  A simple apt install --reinstall will exhibit the behavior in
  /var/log/syslog:

  Command:

  apt install --reinstall -y php7.0-fpm

  /var/log/syslog:

  Mar 12 13:40:17 tester systemd[1]: Reloading.
  Mar 12 13:40:17 tester systemd[1]: Stopping The PHP 7.0 FastCGI Process Manager...
  Mar 12 13:40:17 tester systemd[1]: Stopped The PHP 7.0 FastCGI Process Manager.
  Mar 12 13:40:17 tester systemd[1]: Reloading.
  Mar 12 13:40:18 tester systemd[1]: Reloading.
  Mar 12 13:40:19 tester systemd[1]: Reloading.
  Mar 12 13:40:19 tester systemd[1]: Reloading.
  Mar 12 13:40:19 tester systemd[1]: Starting The PHP 7.0 FastCGI Process Manager...
  Mar 12 13:40:19 tester systemd[1]: Started The PHP 7.0 FastCGI Process Manager.

  php-fpm is down during the entire update process.

  When upgrading to the fixed PPA, it will still shut down at the start
  due to the old script being run.

  Command:

  add-apt-repository -y ppa:kstenerud/xenial-php7.0-restart-after-
  upgrade-1819033 && apt update && apt dist-upgrade -y

  /var/log/syslog:

  Mar 12 13:41:40 tester systemd[1]: Reloading.
  Mar 12 13:41:41 tester systemd[1]: Stopping The PHP 7.0 FastCGI Process Manager...
  Mar 12 13:41:41 tester systemd[1]: Stopped The PHP 7.0 FastCGI Process Manager.
  Mar 12 13:41:41 tester systemd[1]: Reloading.
  Mar 12 13:41:43 tester systemd[1]: Reloading.
  Mar 12 13:41:52 tester systemd[1]: Reloading.
  Mar 12 13:41:52 tester systemd[1]: Reloading.
  Mar 12 13:41:52 tester systemd[1]: Stopped The PHP 7.0 FastCGI Process Manager.
  Mar 12 13:41:52 tester systemd[1]: Starting The PHP 7.0 FastCGI Process Manager...
  Mar 12 13:41:52 tester systemd[1]: Started The PHP 7.0 FastCGI Process Manager.

  The extra "Stopped" at 13:41:52 is due to the new behavior calling
  restart.

  With the new package installed, it no longer stops when beginning an
  upgrade, and does a restart at the end (which php-fpm accomplishes
  with a stop and start).

  Command:

  apt install --reinstall -y php7.0-fpm

  /var/log/syslog:

  Mar 12 13:43:00 tester systemd[1]: Reloading.
  Mar 12 13:43:00 tester systemd[1]: Reloading.
  Mar 12 13:43:01 tester systemd[1]: Reloading.
  Mar 12 13:43:02 tester systemd[1]: Reloading.
  Mar 12 13:43:02 tester systemd[1]: Stopping The PHP 7.0 FastCGI Process Manager...
  Mar 12 13:43:02 tester systemd[1]: Stopped The PHP 7.0 FastCGI Process Manager.
  Mar 12 13:43:02 tester systemd[1]: Starting The PHP 7.0 FastCGI Process Manager...
  Mar 12 13:43:02 tester systemd[1]: Started The PHP 7.0 FastCGI Process Manager.

  
  [Regression Potential]

  If the service tries to load a file that has been replaced during
  upgrade, but before it was restarted, it could cause a failure.
  However, the service will soon be restarted anyway.

  If the restart takes too long it could fail.

  
  [Original Description]

  The unattended update has launch the update of php7.0-fpm that trigger
  the stop of php7.0-fpm service (timestamp match that operation). The
  service does not restart within 10 minutes.

  # systemctl status php7.0-fpm
  ● php7.0-fpm.service - The PHP 7.0 FastCGI Process Manager
     Loaded: loaded (/lib/systemd/system/php7.0-fpm.service; enabled; vendor preset: enabled)
     Active: inactive (dead) since Thu 2019-03-07 15:21:00 UTC; 8min ago
   Main PID: 3505 (code=exited, status=0/SUCCESS)
     Status: "Processes active: 0, idle: 32, Requests: 0, slow: 0, Traffic: 0req/sec"

  Mar 07 15:14:55 xxx systemd[1]: Starting The PHP 7.0 FastCGI Process Manager...
  Mar 07 15:14:55 xxx systemd[1]: Started The PHP 7.0 FastCGI Process Manager.
  Mar 07 15:21:00 xxx systemd[1]: Stopping The PHP 7.0 FastCGI Process Manager...
  Mar 07 15:21:00 xxx systemd[1]: Stopped The PHP 7.0 FastCGI Process Manager.

  # cat /var/log/dpkg.log  | grep php | grep fpm
  [...]
  2019-03-07 15:20:58 status triggers-pending php7.0-fpm:amd64 7.0.30-0ubuntu0.16.04.1
  2019-03-07 15:21:00 upgrade php7.0-fpm:amd64 7.0.30-0ubuntu0.16.04.1 7.0.33-0ubuntu0.16.04.2
  2019-03-07 15:21:00 status half-configured php7.0-fpm:amd64 7.0.30-0ubuntu0.16.04.1
  2019-03-07 15:21:00 status unpacked php7.0-fpm:amd64 7.0.30-0ubuntu0.16.04.1
  2019-03-07 15:21:00 status half-installed php7.0-fpm:amd64 7.0.30-0ubuntu0.16.04.1
  2019-03-07 15:21:00 status half-installed php7.0-fpm:amd64 7.0.30-0ubuntu0.16.04.1
  2019-03-07 15:21:00 status unpacked php7.0-fpm:amd64 7.0.33-0ubuntu0.16.04.2
  2019-03-07 15:21:00 status unpacked php7.0-fpm:amd64 7.0.33-0ubuntu0.16.04.2
  2019-03-07 15:31:31 configure php7.0-fpm:amd64 7.0.33-0ubuntu0.16.04.2 <none>
  2019-03-07 15:31:31 status unpacked php7.0-fpm:amd64 7.0.33-0ubuntu0.16.04.2
  2019-03-07 15:31:31 status unpacked php7.0-fpm:amd64 7.0.33-0ubuntu0.16.04.2
  2019-03-07 15:31:31 status unpacked php7.0-fpm:amd64 7.0.33-0ubuntu0.16.04.2
  2019-03-07 15:31:31 status unpacked php7.0-fpm:amd64 7.0.33-0ubuntu0.16.04.2
  2019-03-07 15:31:31 status unpacked php7.0-fpm:amd64 7.0.33-0ubuntu0.16.04.2
  2019-03-07 15:31:31 status unpacked php7.0-fpm:amd64 7.0.33-0ubuntu0.16.04.2
  2019-03-07 15:31:31 status unpacked php7.0-fpm:amd64 7.0.33-0ubuntu0.16.04.2
  2019-03-07 15:31:31 status half-configured php7.0-fpm:amd64 7.0.33-0ubuntu0.16.04.2
  2019-03-07 15:31:32 status installed php7.0-fpm:amd64 7.0.33-0ubuntu0.16.04.2
  2019-03-07 15:31:32 status triggers-pending php7.0-fpm:amd64 7.0.33-0ubuntu0.16.04.2

  $ lsb_release -rd
  Description:    Ubuntu 16.04.4 LTS
  Release:        16.04

  $ apt-cache policy php7.0-fpm
  php7.0-fpm:
    Installed: 7.0.33-0ubuntu0.16.04.2
    Candidate: 7.0.33-0ubuntu0.16.04.2
    Version table:
   *** 7.0.33-0ubuntu0.16.04.2 500
          500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 Packages
          500 http://security.ubuntu.com/ubuntu xenial-security/universe amd64 Packages
          100 /var/lib/dpkg/status
       7.0.4-7ubuntu2 500
          500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages

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