HAProxy Cluster
Hello, I have got a large number of HAProxies for a single app (over 20 servers). The issue I’m facing is that, even though I have set max number of conns per backend server, since the haproxies are...
View ArticleHAProxy gets “Permission denied” error on server restart
I’m having issues with HAProxy not restarting when my Red Hat server restarts. I have a service script thats designed to call the haproxy start script on server reboot. Every time I try to start it...
View ArticleHaproxy traffic mirroring, how to pass real client...
Hi HAProxy community Im trying to configure traffic mirroring from prod haproxy to stage haproxy instance for testing purpose thanks to the article...
View Article503 if backend node goes down
I have following configuration, global log 127.9.9.1 local0 #debug log /dev/log local0 log /dev/log local1 notice chroot /var/lib/haproxy stats socket /run/adminha.sock mode 600 level admin stats...
View ArticleDistributed tracing for HAproxy
does haproxy support distributed tracing like zipkin/jaeger/opentracing? is there any plugin available that can be consumed as is? 1 post - 1 participant Read full topic
View ArticleHAProxy - health check and agent check for backend MySQL servers
Hi All I have two MySQL servers and replication is configured bidirectional. Connections to Database is handled by HAProxy. At any time one mysql server will be the primary(accepts all connections)...
View ArticleHaproxy removes the "Reason-Phrase" from the HTTP response status code
Haproxy removes the “Reason-Phrase” from the HTTP response status code. I created a very basic php script to test this, the output is simply status code 400 with a reason phrase. <?php...
View ArticleSend multiple URLs to same backend?
OK, I’m very new to haproxy and I’ve been beating my head against this problem for a few days and I’m sure I’m just overlooking something simple. I have five servers that each have three branded...
View ArticleChange sticky session cookie when backend changes
I have sticky session configured with cookie JSESSIONID prefix and option redispatch. A client loads a page, gets the prefix appended to JSESSIONID and some time later the backend dies. I expected the...
View ArticleSsl options and tls1.3
Hello, I’m currently doing a load test on haproxy and I try to understand the impact of different TLS configurations. One thing that is not clear for me is session resumption options for TLS 1.3. It...
View ArticleCant redirect http to http. Also network error when using http2
Hello, I have been testing haproxy and saw two issues. First when I open site it doesnt redirect traffic to https. Second, When I enable http2 mozilla browser shows network error and chrome error in...
View ArticleHaproxy with dataplaneapi - CURL commands
I am exploring haproxy with dataplaneapi or script automation. now i got most of the curl commands for creation of new frontend, backend ,server addition, binding IP, but now i need curl commands for...
View Articleissue on haproxy server
Hi All, We are observing intermittent error code “NOSRV” “SC” on haproxy server and which in turns throws error “ssh_exchange_identification” to Jenkins build Business user (build server connecting to...
View ArticleWhere to install my ssl certs for HAPROXY as a load balancer
Hi I am a complete noob to Haproxy and load balancing. I’m trying to install my site’s SSL certificates and set the DNS name for a server that is using HAProxy for load balancing. Specifically I am...
View ArticleLayer4 timeout for 30 seconds
Hello! Can’t find any answer for this but I use HAproxy for LB on a Galera cluster. Every night I get a Layer4 connection timeout and the servers are not reachable by haproxy, lasts for like 30...
View ArticleIs it possible to adjust the added header position?
I used add-header in config but if cookie value is very large we can’t capture added header because our IDS is not enough buffer. In conclusion, I want to add header before cookie header. Is it...
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Unable to get to Private IIS Server
Hi good folks of the community. I’m in dire need of your help. Many thanks in advance. My setup is such that I have a cloud VM running HAProxy version 2.1.7. I also have an office setup running...
View ArticleL6rsp health-check error and 503 error from backend
Good day! I have some problems with backend and receive 503 response from web. We used http mode by default. All incoming requests checked and forwarded to 443 ssl. But one of them (backend) not...
View ArticleSubdomain reverse proxy
I am hosting several subnets (*.domain.com) using HaProxy. I want to configure all traffic to passthrouth for a domain, whatever port, as long it is for that domain. internet ->...
View ArticleHow do I record traffic?
I want to record traffic to one of my backends. I found https://github.com/linkedin/flashback which is a proxy which records traffic but I found no way of configuring it between HAProxy and the...
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