Public bug reported:
On a new installation of Ubuntu 14.04.3 LTS I installed HAProxy 1.5 from
trusty-backports (1.5.4-1ubuntu2.1~ubuntu14.04.1).
When I restarted HAProxy, I got random HTTP 503 although the backend
servers were all working fine. By checking netstat, I saw that HAProxy
was listening multiple times on the frontend ports.
It seems that the init script coming with the installation does not work
correctly. The processes are not terminated correctly when using stop
(or restart, in this matter, either).
Only with a kill I was able to correctly terminate the HAProxy
processes.
The following output should show more clarity:
root@mylinux:~# netstat -lntp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
PID/Program name
tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
4653/haproxy
tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
4221/haproxy
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
956/nginx
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
855/sshd
tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
4653/haproxy
tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
4221/haproxy
tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
4653/haproxy
tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
4221/haproxy
tcp6 0 0 :::22 :::* LISTEN
855/sshd
root@mylinux:~# service haproxy stop
* Stopping haproxy haproxy
[ OK ]
root@mylinux:~# service haproxy status
haproxy not running.
root@mylinux:~# netstat -lntp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
PID/Program name
tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
4653/haproxy
tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
4221/haproxy
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
956/nginx
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
855/sshd
tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
4653/haproxy
tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
4221/haproxy
tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
4653/haproxy
tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
4221/haproxy
tcp6 0 0 :::22 :::* LISTEN
855/sshd
root@mylinux:~# killall haproxy
root@mylinux:~# netstat -lntp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
PID/Program name
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
956/nginx
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
855/sshd
tcp6 0 0 :::22 :::* LISTEN
855/sshd
root@mylinux:~# service haproxy start
* Starting haproxy haproxy
[ OK ]
root@mylinux:~# netstat -lntp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
PID/Program name
tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
8205/haproxy
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
956/nginx
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
855/sshd
tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
8205/haproxy
tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
8205/haproxy
tcp6 0 0 :::22 :::* LISTEN
855/sshd
root@mylinux:~# service haproxy restart
* Restarting haproxy haproxy
[ OK ]
root@nzzad-lb01-test:~# netstat -lntp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
PID/Program name
tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
8286/haproxy
tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
8205/haproxy
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
956/nginx
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
855/sshd
tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
8286/haproxy
tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
8205/haproxy
tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
8286/haproxy
tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
8205/haproxy
tcp6 0 0 :::22 :::* LISTEN
855/sshd
** Affects: haproxy (Ubuntu)
Importance: Undecided
Status: New
** Tags: haproxy
** Description changed:
On a new installation of Ubuntu 14.04.3 LTS I installed HAProxy 1.5 from
- trusty-backports.
+ trusty-backports (1.5.4-1ubuntu2.1~ubuntu14.04.1).
When I restarted HAProxy, I got random HTTP 503 although the backend
servers were all working fine. By checking netstat, I saw that HAProxy
was listening multiple times on the frontend ports.
It seems that the init script coming with the installation does not work
correctly. The processes are not terminated correctly when using stop
(or restart, in this matter, too, which uses the stop function).
Only with a kill I was able to correctly terminate the HAProxy
processes.
The following output should show more clarity:
root@mylinux:~# netstat -lntp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
PID/Program name
- tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
4653/haproxy
- tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
4221/haproxy
- tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
956/nginx
- tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
855/sshd
- tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
4653/haproxy
- tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
4221/haproxy
- tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
4653/haproxy
- tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
4221/haproxy
- tcp6 0 0 :::22 :::* LISTEN
855/sshd
-
+ tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
4653/haproxy
+ tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
4221/haproxy
+ tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
956/nginx
+ tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
855/sshd
+ tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
4653/haproxy
+ tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
4221/haproxy
+ tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
4653/haproxy
+ tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
4221/haproxy
+ tcp6 0 0 :::22 :::* LISTEN
855/sshd
root@mylinux:~# service haproxy stop
- * Stopping haproxy haproxy
[ OK ]
-
+ * Stopping haproxy haproxy
[ OK ]
root@mylinux:~# service haproxy status
haproxy not running.
+ root@mylinux:~# netstat -lntp
+ Active Internet connections (only servers)
+ Proto Recv-Q Send-Q Local Address Foreign Address State
PID/Program name
+ tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
4653/haproxy
+ tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
4221/haproxy
+ tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
956/nginx
+ tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
855/sshd
+ tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
4653/haproxy
+ tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
4221/haproxy
+ tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
4653/haproxy
+ tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
4221/haproxy
+ tcp6 0 0 :::22 :::* LISTEN
855/sshd
+
+ root@mylinux:~# killall haproxy
root@mylinux:~# netstat -lntp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
PID/Program name
- tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
4653/haproxy
- tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
4221/haproxy
- tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
956/nginx
- tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
855/sshd
- tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
4653/haproxy
- tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
4221/haproxy
- tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
4653/haproxy
- tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
4221/haproxy
- tcp6 0 0 :::22 :::* LISTEN
855/sshd
+ tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
956/nginx
+ tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
855/sshd
+ tcp6 0 0 :::22 :::* LISTEN
855/sshd
-
- root@mylinux:~# killall haproxy
-
+ root@mylinux:~# service haproxy start
+ * Starting haproxy haproxy
[ OK ]
root@mylinux:~# netstat -lntp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
PID/Program name
- tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
956/nginx
- tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
855/sshd
- tcp6 0 0 :::22 :::* LISTEN
855/sshd
+ tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
8205/haproxy
+ tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
956/nginx
+ tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
855/sshd
+ tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
8205/haproxy
+ tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
8205/haproxy
+ tcp6 0 0 :::22 :::* LISTEN
855/sshd
-
- root@mylinux:~# service haproxy start
- * Starting haproxy haproxy
[ OK ]
-
-
- root@mylinux:~# netstat -lntp
- Active Internet connections (only servers)
- Proto Recv-Q Send-Q Local Address Foreign Address State
PID/Program name
- tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
8205/haproxy
- tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
956/nginx
- tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
855/sshd
- tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
8205/haproxy
- tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
8205/haproxy
- tcp6 0 0 :::22 :::* LISTEN
855/sshd
-
-
-
root@mylinux:~# service haproxy restart
- * Restarting haproxy haproxy
[ OK ]
-
+ * Restarting haproxy haproxy
[ OK ]
root@nzzad-lb01-test:~# netstat -lntp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
PID/Program name
- tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
8286/haproxy
- tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
8205/haproxy
- tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
956/nginx
- tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
855/sshd
- tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
8286/haproxy
- tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
8205/haproxy
- tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
8286/haproxy
- tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
8205/haproxy
+ tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
8286/haproxy
+ tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
8205/haproxy
+ tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
956/nginx
+ tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
855/sshd
+ tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
8286/haproxy
+ tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
8205/haproxy
+ tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
8286/haproxy
+ tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
8205/haproxy
tcp6 0 0 :::22 :::* LISTEN
855/sshd
** Description changed:
On a new installation of Ubuntu 14.04.3 LTS I installed HAProxy 1.5 from
trusty-backports (1.5.4-1ubuntu2.1~ubuntu14.04.1).
When I restarted HAProxy, I got random HTTP 503 although the backend
servers were all working fine. By checking netstat, I saw that HAProxy
was listening multiple times on the frontend ports.
It seems that the init script coming with the installation does not work
correctly. The processes are not terminated correctly when using stop
- (or restart, in this matter, too, which uses the stop function).
+ (or restart, in this matter, either).
Only with a kill I was able to correctly terminate the HAProxy
processes.
The following output should show more clarity:
root@mylinux:~# netstat -lntp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
PID/Program name
tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
4653/haproxy
tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
4221/haproxy
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
956/nginx
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
855/sshd
tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
4653/haproxy
tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
4221/haproxy
tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
4653/haproxy
tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
4221/haproxy
tcp6 0 0 :::22 :::* LISTEN
855/sshd
root@mylinux:~# service haproxy stop
* Stopping haproxy haproxy
[ OK ]
root@mylinux:~# service haproxy status
haproxy not running.
root@mylinux:~# netstat -lntp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
PID/Program name
tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
4653/haproxy
tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
4221/haproxy
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
956/nginx
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
855/sshd
tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
4653/haproxy
tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
4221/haproxy
tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
4653/haproxy
tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
4221/haproxy
tcp6 0 0 :::22 :::* LISTEN
855/sshd
root@mylinux:~# killall haproxy
root@mylinux:~# netstat -lntp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
PID/Program name
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
956/nginx
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
855/sshd
tcp6 0 0 :::22 :::* LISTEN
855/sshd
root@mylinux:~# service haproxy start
* Starting haproxy haproxy
[ OK ]
root@mylinux:~# netstat -lntp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
PID/Program name
tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
8205/haproxy
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
956/nginx
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
855/sshd
tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
8205/haproxy
tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
8205/haproxy
tcp6 0 0 :::22 :::* LISTEN
855/sshd
root@mylinux:~# service haproxy restart
* Restarting haproxy haproxy
[ OK ]
root@nzzad-lb01-test:~# netstat -lntp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
PID/Program name
tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
8286/haproxy
tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
8205/haproxy
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
956/nginx
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
855/sshd
tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
8286/haproxy
tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN
8205/haproxy
tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
8286/haproxy
tcp 0 0 0.0.0.0:8099 0.0.0.0:* LISTEN
8205/haproxy
tcp6 0 0 :::22 :::* LISTEN
855/sshd
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https://bugs.launchpad.net/bugs/1494141
Title:
HAProxy 1.5 init script does not terminate processes
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