package haproxy 1.8.8-1ubuntu0.1 failed to install/upgrade: installed haproxy package post-installation script subprocess returned error exit status 1

[Abhishek Dubey]

While upgrading the packages I got this report.

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: haproxy 1.8.8-1ubuntu0.1
ProcVersionSignature: Ubuntu 4.15.0-21.22-generic 4.15.17
Uname: Linux 4.15.0-21-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
Date: Sat Jun 2 12:56:12 2018
ErrorMessage: installed haproxy package post-installation script subprocess returned error exit status 1
InstallationDate: Installed on 2017-06-24 (342 days ago)
InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2)
Python3Details: /usr/bin/python3.6, Python 3.6.5, python3-minimal, 3.6.5-3
PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, python-minimal, 2.7.15~rc1-1
RelatedPackageVersions:
 dpkg 1.19.0.5ubuntu2
 apt 1.6.1
SourcePackage: haproxy
Title: package haproxy 1.8.8-1ubuntu0.1 failed to install/upgrade: installed haproxy package post-installation script subprocess returned error exit status 1
UpgradeStatus: Upgraded to bionic on 2018-04-15 (47 days ago)
modified.conffile..etc.default.haproxy: [modified]
modified.conffile..etc.haproxy.haproxy.cfg: [modified]
mtime.conffile..etc.default.haproxy: 2018-03-03T20:50:28.580803
mtime.conffile..etc.haproxy.haproxy.cfg: 2018-03-03T23:41:14.936352

[Andreas Hasenack (ahasenack)]

Thanks for filing this bug in Ubuntu.

This is the error log:
Setting up haproxy (1.8.8-1ubuntu0.1) ...
Job for haproxy.service failed because the control process exited with error code.
See "systemctl status haproxy.service" and "journalctl -xe" for details.
invoke-rc.d: initscript haproxy, action "start" failed.
● haproxy.service - HAProxy Load Balancer
   Loaded: loaded (/lib/systemd/system/haproxy.service; enabled; vendor preset: enabled)
   Active: activating (auto-restart) (Result: exit-code) since Sat 2018-06-02 12:55:58 IST; 5ms ago
     Docs: man:haproxy(1)
           file:/usr/share/doc/haproxy/configuration.txt.gz
  Process: 6482 ExecStart=/usr/sbin/haproxy -Ws -f $CONFIG -p $PIDFILE $EXTRAOPTS (code=exited, status=1/FAILURE)
  Process: 6481 ExecStartPre=/usr/sbin/haproxy -f $CONFIG -c -q $EXTRAOPTS (code=exited, status=0/SUCCESS)
 Main PID: 6482 (code=exited, status=1/FAILURE)

Jun 02 12:55:59 Dell haproxy[6495]: [ALERT] 152/125559 (6495) : Starting proxy mysql: cannot bind socket [127.0.0.1:3306]
Jun 02 12:55:59 Dell systemd[1]: haproxy.service: Main process exited, code=exited, status=1/FAILURE
Jun 02 12:55:59 Dell systemd[1]: haproxy.service: Failed with result 'exit-code'.
Jun 02 12:55:59 Dell systemd[1]: Failed to start HAProxy Load Balancer.
Jun 02 12:55:59 Dell systemd[1]: haproxy.service: Service hold-off time over, scheduling restart.
Jun 02 12:55:59 Dell systemd[1]: haproxy.service: Scheduled restart job, restart counter is at 5.
Jun 02 12:55:59 Dell systemd[1]: Stopped HAProxy Load Balancer.
Jun 02 12:55:59 Dell systemd[1]: haproxy.service: Start request repeated too quickly.
Jun 02 12:55:59 Dell systemd[1]: haproxy.service: Failed with result 'exit-code'.
Jun 02 12:55:59 Dell systemd[1]: [0;

It looks like you have another service already listening on port 3306. Perhaps it's mysql itself?

Please attach these files:
/etc/default/haproxy
/etc/haproxy/haproxy.cfg

And show the output of this command:
sudo netstat -anp

Thanks!

[Launchpad Janitor (janitor)]

[Expired for haproxy (Ubuntu) because there has been no activity for 60 days.]