I am fairly new to haproxy setup. I was able to successfully setup to route frontend requests to specific port on backend. But now I have got a request to route requests to same server but different ports. The backend port to where the request needs to be routed is same as the incoming port. I tried below config among many options but nothing seems to work
global
log 127.0.0.1 local2
chroot /var/lib/haproxy
pidfile /var/run/haproxy.pid
maxconn 4000
user haproxy
group haproxy
daemon
defaults
mode http
log global
option httplog
option dontlognull
timeout connect 10s
timeout client 1m
timeout server 1m
frontend haproxynode_https
bind 0.0.0.0:6443
bind 0.0.0.0:10111
bind 0.0.0.0:10121
bind 0.0.0.0:10131
bind 0.0.0.0:10141
bind 0.0.0.0:10181
bind 0.0.0.0:10191
bind 0.0.0.0:10011
bind 0.0.0.0:10021
bind 0.0.0.0:10041
bind 0.0.0.0:10051
bind 0.0.0.0:10061
bind 0.0.0.0:10071
bind 0.0.0.0:10091
bind 0.0.0.0:10241
mode tcp
option tcplog
timeout client 1h
default_backend backendnodes_https
backend backendnodes_https
mode tcp
timeout server 1h
option tcplog
option tcp-check
balance roundrobin
default-server inter 10s downinter 5s rise 2 fall 2 slowstart 60s maxconn 250 maxqueue 256 weight 100
server master XX.XXX.XX.XX weight 1 port 80 maxconn 512 check
server master-1 XX.XXX.XX.XXX weight 1 port 80 maxconn 512 check
server master-2 XX.XXX.XX.XX weight 1 port 80 maxconn 512 check
Any pointers is highly appreciated
run first
haproxy -f /etc/haproxy/haproxy.cfg -c
Is all ok with the conf file ?
add at the end :
listen stats
bind :20000
mode http
stats enable
stats uri /stats
stats hide-version
stats refresh 60
stats realm Haproxy-Statistics
stats auth admin:password
stats admin if TRUE
Check the stats page : connect with a browser to
http://ip:20000/stats
send more info please
Related
I have balancing host
192.168.1.12
receive input HTTP/HTTPS traffic
and balancing on backends
10.0.1.12
10.0.1.13
Use
HA-Proxy version 1.8.4-1deb90d 2018/02/08
config
global
log 127.0.0.1 local2
chroot /var/opt/rh/rh-haproxy18/lib/haproxy
pidfile /var/run/rh-haproxy18-haproxy.pid
maxconn 20000
daemon
# turn on stats unix socket
stats socket /var/opt/rh/rh-haproxy18/lib/haproxy/stats
defaults
mode http
log global
option httplog
option dontlognull
option http-server-close
option forwardfor except 127.0.0.0/8
option redispatch
retries 3
timeout http-request 10s
timeout queue 1m
timeout connect 10s
timeout client 15s
timeout server 15s
timeout http-keep-alive 5s
timeout check 3s
maxconn 20001
frontend http_frontend
bind *:80
default_backend http_backend
backend http_backend
mode http
server server1 10.0.1.12:8081 check
server server1 10.0.1.13:8081 check
Start service OK
Check curl
# curl -iv 10.0.1.12:8081
# curl -iv 10.0.1.13:8081
Return OK
Why
curl http://localhost
return 503 Service Unavailable
No server is available to handle this request.
?
here is my haproxy.cfg file hope this will help you to resolve your issue.
# Nur Load Balancer #
frontend tomcat-service
bind *:8081
default_backend tomcat-server
mode http
backend tomcat-server
balance roundrobin
server mfsys-cm-01 192.168.10.31:8080 check
server mfsys-cm-02 192.168.10.30:8080 check
listen stats
bind *:8082
stats enable
stats hide-version
stats show-node
stats uri /stats
stats auth admin:mypassword
stats refresh 5s
i got same error when i access stats, and solution was simple i was not giving proper url as it should be http://192.168.10.1:8082/stats
I know it is possible to make connections sticky based on url a parameter:
https://serverfault.com/questions/495049/using-url-parameters-for-load-balancing-with-haproxy?utm_medium=organic&utm_source=google_rich_qa&utm_campaign=google_rich_qa
Is it also possible to do it based on an ID in the url path?
If my url is: /objects/:objectId
Can I somehow use that :objectId to make the connection sticky?
EDIT
I was able to load balance making the request sticky on the url path using the configuration below:
global
#daemon
maxconn 256
defaults
mode http
timeout connect 5000ms
timeout client 50000ms
timeout server 50000ms
frontend http-in
bind *:80
default_backend servers
backend servers
balance roundrobin
stick-table type string size 200k expire 30m
stick on path
server server1 127.0.0.1:8000
server server2 127.0.0.1:8001
listen stats
bind 127.0.0.1:9000
mode http
log global
maxconn 10
stats enable
stats hide-version
stats refresh 5s
stats show-node
stats auth admin:password
stats uri /haproxy?stats
The problem now is that if one of the servers go down the stick-table is not updated. How can I make it so that if one of the servers is not reachable the entries in the stick-table that point to that server are deleted?
Final Answer
Ok, I was able to figure that out. The configuration below makes the requests stick on the url path and HAProxy will make an HTTP GET to /health at every 250ms and if it doesn't returns 200 it will consider the server to be down and that will remove all entries from the stick-table.
global
daemon
maxconn 256
defaults
mode http
timeout connect 5000ms
timeout client 50000ms
timeout server 50000ms
frontend http-in
bind *:80
default_backend servers
backend servers
balance roundrobin
stick-table type string size 200k expire 30m
option httpchk GET /health
http-check expect status 200
stick on path,word(2,/) if { path_beg /objects/ }
server server1 127.0.0.1:8000 check inter 250
server server2 127.0.0.1:8001 check inter 250
listen stats
bind 127.0.0.1:9000
mode http
log global
maxconn 10
stats enable
stats hide-version
stats refresh 5s
stats show-node
stats auth admin:password
stats uri /haproxy?stats
Use this:
stick on path,word(2,/) if { path_beg /objects/ }
I am looking for a haproxy (HAProxy version 1.5.18) configuration which will allow websocket loadbalancing as well as RabbitMQ load balancing. I have tried many options but none seem to work, below is my haproxy config file:
global
log 127.0.0.1 local2
chroot /var/lib/haproxy
pidfile /var/run/haproxy.pid
maxconn 4000
user haproxy
group haproxy
daemon
stats socket /var/lib/haproxy/stats
defaults
mode http
log global
option httplog
option dontlognull
option http-server-close
option forwardfor except 127.0.0.0/8
option redispatch
retries 3
timeout http-request 15s
timeout queue 1m
timeout connect 10s
timeout client 1m
timeout server 1m
timeout http-keep-alive 10s
timeout check 10s
maxconn 3000
timeout tunnel 3600s
frontend http_web *:80
mode http
default_backend rgw
backend rgw
balance roundrobin
server rgw1 173.36.22.49:8080 maxconn 10000 weight 10 cookie rgw1 check
server rgw2 10.42.139.69:8080 maxconn 10000 weight 10 cookie rgw2 check
listen stats :9000
mode http
stats enable
stats realm Haproxy\ Statistics
stats uri /haproxy_stats # Stats URI
stats auth websocketadmin:websocketadmin
listen ampq
bind *:61613
mode tcp
option clitcpka
server rabbit1 10.42.6.112:61613 check inter 1s rise 3 fall 1
server rabbit2 10.42.6.113:61613 check inter 1s rise 3 fall 1
server rabbit3 10.42.6.114:61613 check inter 1s rise 3 fall 1
server rabbit4 10.42.6.115:61613 check inter 1s rise 3 fall 1
Haproxy doesn't give any error, it prints the below message, but it doesn't work, i cannot connect to websocket or connect to Rabbitmq. But as soon as i remove "listen ampq", everything starts working fine.
Sep 8 21:00:40 localhost haproxy[3184]: Proxy http_web started.
Sep 8 21:00:40 localhost haproxy[3184]: Proxy rgw started.
Sep 8 21:00:40 localhost haproxy[3184]: Proxy stats started.
The problem was the port 61613, which was already taken by another process. So i had to change to a new port and add it in the firewall rules and it is working now.
I have made the following ha-proxy configuration and have recieved the following error while HAProxy restart:
HAproxy Config
global
log /dev/log local0
log /dev/log local1 notice
chroot /var/lib/haproxy
user haproxy
group haproxy
daemon
defaults
log global
mode tcp
option tcplog
option dontlognull
retries 3
timeout client 3h
timeout server 3h
timeout connect 5000
frontend fe_websockets
bind 0.0.0.0:443 ssl crt /home/test/Documents/test3.pem
mode tcp
log global
option tcplog
timeout client 3600s
backlog 4096
maxconn 50000
default_backend be_nywebsockets
backend be_nywebsockets
mode tcp
option log-health-checks
option redispatch
option tcplog
balance roundrobin
server web1 localhost:8443 check
# server web2 localhost:8081 check
timeout connect 1s
timeout queue 5s
timeout server 3600s
Why does HAProxy doesnt allow to bind 443 to some server port?
I have followed the configuration specified in the following link:
https://gist.github.com/allanparsons/6076098
[ALERT] 101/231920 (8356) : Starting frontend fe_websockets: cannot bind socket [0.0.0.0:443]
Most likely, port 443 is already in use by another process. Check using netstat if you have existing processes in the haproxy box already bound to it.
I've recently started to load test my app and found that HAProxy for some reason is not able to handle a lot of concurrent connections.
Im only using HAProxy to load balance my SSL traffic, for non-ssl (99% of my traffic is ssl) i use nginx.
I have tested my setup on blitz.io and when sending traffic to non-ssl (200 concurrent) i get no timeouts or errors. However when doing the same test over SSL (which HAProxy handles) i immediately get 100% CPU and requests are timing out.
This leads me to believe there is something wrong in my HAProxy config.
Below is my config, any ideas what could be wrong?
Oh and i am running this on a medium EC2 CPU optimized instance
My haproxy.cfg:
global
maxconn 400000
ulimit-n 800019
nbproc 1
debug
daemon
log 127.0.0.1 local0 notice
defaults
mode http
option httplog
log global
stats enable
stats refresh 60s
stats uri /stats
maxconn 32768
frontend secured
timeout client 86400000
mode http
timeout client 120s
option httpclose
#option forceclose
option forwardfor
bind 0.0.0.0:443 ssl crt /etc/nginx/ssl/ssl-bundle.pem
acl is_sockjs path_beg /echo /broadcast /close # SockJS
acl is_express path_beg /probe /loadHistory /activity # Express
use_backend www_express if is_express
use_backend sockjs if is_sockjs
default_backend www_nginx
backend tcp_socket
mode http
server server1 xx.xx.xx.xx:8080 check port 8080
backend www_express
mode http
option forwardfor #this sets X-Forwarded-For
timeout server 30000
timeout connect 4000
server server1 xx.xx.xx.xx:8008 weight 1 maxconn 32768 check
backend sockjs
mode http
option forwardfor #this sets X-Forwarded-For
timeout server 30000
timeout connect 4000
server server1 xx.xx.xx.xx:8081 weight 1 maxconn 32768 check
backend www_nginx
mode http
option forwardfor #this sets X-Forwarded-For
timeout server 30000
timeout connect 4000
server server1 localhost:80 weight 1 maxconn 8024 check
listen stats :8181
mode http
stats enable
stats hide-version
stats realm Haproxy\ Statistics
stats uri /
stats auth helloxx:xx