Load balancing deal with the techniques involved on using multiple systems to deal with high demands, balancing the load between those multiple systems. Questions deal with networking and server load balancing, using dedicated hardware or not.

learn more… | top users | synonyms (2)

0
votes
0answers
41 views

Application Request Routing and Throttling

We have a set of WCF services that are proxying calls to another web service layer built on top of IBM WebSphere. The WebSphere setup is a black box to us, but we're told that we need to throttle ...
0
votes
0answers
65 views

F5 routes all REST requests from one client to same host

I have a rest webservice clustered behind an F5 using SSL Termination, SSL persistence and the balancing is "least connections". This service sees millions of messages per day. The vast majority of ...
1
vote
3answers
3k views

ESXi 5.5 NIC teaming for Load balancing using Cisco Etherchannel

I am using Cisco 3750G stacked switch configured with etherchannel and connected to ESXi Server configured with NIC teaming; Load balancing as router based on IP Hash. Cisco Switch configuration: ( ...
2
votes
2answers
360 views

Static IP in AWS but with possible Load Balance feature

I am playing a bit with AWS. My goal is to setup infrastructure, which will have static IP on outgoing connections (requirement from payment provider which solution has been implemented in our app) ...
1
vote
1answer
45 views

Browser Authentication Prompt After Server Restart

Details We have an internal website. The authentication mode is windows hence it takes windows logins. It is served from two windows servers running Windows Server 2008 R2. And are connected with ...
0
votes
1answer
23 views

Hot-spare using Pound

I currently have a server deployment in which Pound is being used as a reverse proxy (HTTPS -> HTTP) in front of a single server instance. I'd like to add a second instance on a different host that ...
0
votes
2answers
419 views

How do you force an Apache Load balancer to rewrite http 302 redirects to https?

I've got a website that I want to always be served in https. The site is load balanced using Apache. The Apache load balancer is configured basically like so: <Proxy balancer://mycluster> ...
0
votes
0answers
34 views

Maximum server attempts from upstream in Nginx

I have configured Nginx load balancing between backend servers. upsteam backend { server 127.0.0.1:8080; server 127.0.0.1:8081; server 127.0.0.1:8082; server 127.0.0.1:8083; } server ...
0
votes
3answers
74 views

Load balancing for a running server process with sessions

I'm developing a server application that accepts incoming connections and works with client applications. The customer wants to have two machines working: in case one goes offline, the second will ...
1
vote
2answers
488 views

How to construct a MongoDB Health Check in HAProxy?

There is a fastcgi example of a binary health check on the HAProxy blog. How would I construct a similar check for MongoDB such that I am doing a more robust health check for MongoDB - one that ...
5
votes
3answers
537 views

nginx - Load Balancer - Considerable lag when upstream node is offline/down

Running nginx 1.0.15 on CentOS 6.5. I have three upstream servers and everything works fine, however when I simulate an outage, and take one of the upstream servers down, I notice considerable lag in ...
0
votes
1answer
68 views

load balancing multiple connections over multiple links

As I understand it (based on the kernel docs) the setting of "arp_filter=1" necessitates the use of a source based routing policy to allow multiple interfaces to route traffic, potentially (but not ...
-1
votes
1answer
37 views

ssl and loadbalancing : answer directly from backend?

Context debian 64bits. I try to learn https. I created a loadbalancer but I cannot answer tthe client directly from the backend since it receive the LB ip. Question I would like to know how I ...
0
votes
1answer
90 views

Multiple Proxy servers - and how to get around non-SNI devices?

We have a lot of devices that cannot use SNI and we want to be able to proxy a lot of HTTP/HTTPS servers. I was thinking we could setup a HAProxy for each URL to connect to initially, and then load ...
0
votes
1answer
118 views

How to proxy traffic by IP using server names/aliases?

We have 5 different server locations each containing around 30 servers each, each server represents a URL and serves both HTTP and HTTPS. They're all identical however provide different content based ...
0
votes
2answers
79 views

How to balance the root domain using NS records?

I have two load balancers that balance incoming traffic across multiple data centers. These work fine. I can test them out by doing an nslookup example.com xIP I have now taken out DNS services with ...
1
vote
1answer
83 views

Working WCF WebServices with NLB server

Im starting the architecture of a new project using WCF, but im not the right person to make some network considerations, so im doing some research but cannot find the answers to these questions: ...
0
votes
1answer
49 views

When load balancing, must all copies of static web page be exactly the same?

I am used to get answers for everything on the web, but not this time... Yesterday I enable Amazon DNS weight functionally to load balance 7 websites between two different IP addresses (split ...
2
votes
1answer
419 views

HAProxy error: Some configuration options require full privileges, so global.uid cannot be changed

After adding the line to /etc/haproxy/haproxy.cfg as part of creating a transparent proxy, source 0.0.0.0 usesrc clientip restarting haproxy starts giving an error ~# service haproxy reload ...
0
votes
1answer
420 views

Using 2 Transparent HAProxy for load balancing

We can configure HAProxy to be a transparent proxy by using the guide here, where one of the steps says ...to put the backend servers in a different subnet to the front end clients and make sure that ...
0
votes
0answers
421 views

RTMP Proxy Server

I have an application which uses both HTTP (content data) and RTMP (video streams) for communications. An nginx server is configured for load balancing and proxying incoming client requests. It works ...
0
votes
1answer
34 views

Apache loadbalancing - how to get reported about server fault

I am a newbie about load balancing so sorry if the question is trivial. I set up a basic load balancing using one server as a load balancer (planning to add at least one more with heartbeat) and for ...
-1
votes
1answer
102 views

HAProxy - proxy to webserver via tcp

I have a simple web application, All requests to that application are HTTP based (RESTfull API and standard ajax) I have an haproxy before my tomcat cluster. So now i have clients that http request ...
2
votes
1answer
1k views

Dynamic HAProxy configuration

I try to figure out a way to dynamically manage the loadbalancer configuration. I want to add and remove "service nodes" depending on the overall system load. My research so far revealed "Thalassa" ...
-1
votes
2answers
65 views

sending requests from many IP's [closed]

Is there a service I can use to balance requests between many IP addresses? I need to run some tests and want to send out http requests from a pool of say 100 IP addresses. I don't want to incur the ...
0
votes
0answers
91 views

Load Balancing Nginx

Okay I have edited my question :) I would like to point all traffic at my dedicated server running Nginx and have that handle 70-80% of the load while also distributing the traffic to some other VPS ...
1
vote
0answers
124 views

Can stunnel be used to round robin tcp connections without SSL?

Today, I'm already using stunnel to provide SSL termination to a set of TCP services where the connections are round-robin'ed, this is done, for example, like follows: [myserv] accept = 443 connect = ...
0
votes
1answer
250 views

Can HAProxy reconnect a websocket to another backend server transparently?

I'm new to HAProxy so this might have an obvious answer but I wasn't able to find it. Consider this setup: two backend web applications; one HAProxy in front of the web applications; many clients ...
2
votes
0answers
60 views

Should load balancers ever use TLS session ID to direct traffic?

One of my vendors caused an outage today by using TLS SessionID (sent by the browser) as a way to determine which host to direct traffic to. Since SessionID can leak privacy details, and more ...
0
votes
0answers
30 views

Can Azure load balancing, balance to several ports on one (or more) VMs

I have a single threaded application (on an Azure VM), which I want to run one instance per cpu core. I will need to use one port per instance. (e.g., ports: 81,82,83, and 84) Is it possible to load ...
1
vote
2answers
1k views

Apache mod_remoteip and access logs

Since Apache 2.4 I've started using mod_remoteip instead of mod_extract_forwarded for rewriting client address from x-forwarded-for provided by frontend servers (varnish, squid, apache etc). So far ...
1
vote
0answers
44 views

is it possible to have reqrep for each server in haproxy loadbalancer?

There are 3 servers in a load balanced HAProxy setup. server serv1 192.168.1.101:8080 check inter 2000 rise 1 fall 1 server serv2 192.168.1.102:8080 check inter 2000 rise 1 fall 1 #The ...
0
votes
1answer
228 views

Load balancing Bind9 with Keepalived and LVS

How can I correctly configure LVS to masqerade/NAT packets from virtual ip to/from clients? Currently I have: UDP 10.47.1.80:domain rr -> 10.47.1.51:domain Masq 10 0 ...
0
votes
0answers
221 views

AWS - elastic load balancer unable to handle the request

I'm totally new to AWS and the world. My problem here is while requesting to AWS server. I have a server staging-storage.zazzercode.co pointing to following DNS's with respective load balancers, ...
0
votes
0answers
58 views

In Route53, balance traffic between ELB and other IP v4 addresses

Using Route53, is there a way to round-robin to a combination of ELB's and IP v4 addresses? I have three load balancers, two are external to AWS and one is an AWS ELB. I want all three load balancers ...
0
votes
1answer
228 views

F5 vs Windows Network Load Balancer

I am using Windows Server 2012 R2 for deployment of Microsoft Dynamics CRM 2013. I can use F5 as its available. I want to know the criteria for deciding F5 or Network Load Balancing. Which is better ...
-1
votes
1answer
482 views

Network load balancing: LACP between Debian & FreeNAS over Cisco Switch doesn't work

My setup: 2 Debian Server, with Bonding 2 Storage Server FreeNAS with Link Aggregation 1 Cisco Switch SG-200 with LAG enabled MTU 9000 enabled everywhere Result: Network performance is still single ...
0
votes
1answer
710 views

Haproxy sticky session not redirecting to different server when backend fails

I have the following configuration for my haproxy LB: global daemon maxconn 2048 # SSL ca-base /etc/ssl/certs crt-base /etc/ssl/private ssl-default-bind-ciphers ...
0
votes
0answers
139 views

Haproxy load balancing TPS lower than single node

I have 2 apache2 servers running in the back end and have a haproxy between them and the clients. If I bench tested anyone of these apache2 severs with ab i get north of a 1500TPS however when I bench ...
0
votes
0answers
46 views

LVS load balancer machine can't query DNS on remote vIP

Server 1: Real ip: 10.0.0.11 Virtual ip: 10.0.0.10 (as seen by ip addr) DNS server listening on 10.0.0.11 LVS setup: IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler ...
1
vote
1answer
141 views

How to Add/Remove New Server behind Haproxy with Minimal Disruption

Haproxy is currently balancing the load between 2 servers, A an B. Clients are connecting to these servers via persistent TCP connections. Question: We want to upgrade from server A to a more ...
0
votes
0answers
64 views

Is it possible to use FastCGI_cache on nginx load balancer?

I am trying to setup a load-balanced small cluster to accommodate growing traffic on my WooCommerce site. The topology is going to be like this: Load balancer running nginx 2 application servers ...
0
votes
1answer
207 views

HTTPS health monitoring on rackspace cloud load balancer

I was using rackspace cloud load balancer to switch between two of my nodes. It was basically a active-passive setup in which the switch would take place in case primary node fails the http health ...
0
votes
0answers
114 views

Setting up LBnamed for dns

Thank for your listen and sorry If my bad English. I'm setting up load balancing for 2 server with Lbnamed (Stanford 's project). I just wanna test with simple architecture. 2 server have ip as ...
0
votes
2answers
365 views

EC2 Load balancer and wildcard/multi-domain SSL certificates

I am running three sites through one load balancer (and 2 child-application servers) One of the site's has an SSL certificate, but I'd like to add a certificate for the other two sites What is my ...
2
votes
2answers
217 views

Application access via AWS Load Balancer with autoscaling

I am configuring a test AWS architecture for a web application that I plan to migrate from a dedicated hosting service to AWS. What I have now is as follows : One MySql RDS, where my application ...
4
votes
2answers
191 views

How to get name of server that has served request in fronted section?

I need to add server name in response HTTP headers X-Servedby. Is there any way to replace [server] with name of server that has served request? frontend front x.x.x.x:80 default_backend balancing ...
1
vote
2answers
1k views

Using cloudflare as the only load balancer

Say I have 3 vps nodes in linode to serve traffic on a single website. Linode themselves provides a node balancing solution: https://www.linode.com/nodebalancers But I use cloudflare and was ...
1
vote
1answer
332 views

Can apache load balancer find if one of it's balancer members is down?

I need to know if apache can wisely and automatically detect if one of it's balanerMembers is down and consequently exempt it from serving the requests? P.S. The back-end servers won't produce ...
0
votes
1answer
268 views

Routing tables in OS/X Mavericks - causing traceroute: sendto: Cannot allocate memory

OS/X does most of its routing based on the order of the interfaces in 'Network Preferences'. I need to separate traffic, so I've put the default route first, and then routed traffic to the second ...