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.

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27 views

Optimzing Web Server [on hold]

I'm trying to increase connection speed and at the same time reduce server load for my web application. I'm looking at setting up something similar to a CDN (Content Delivery Network) but that's able ...
-2
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0answers
20 views

load balance without default route

I am trying to set up load balancing using static routes configured in the /etc/network/interfaces file which is as follows: auto eth0 iface eth0 inet static address 192.168.1.2 netmask 255.255.255.0 ...
0
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1answer
43 views

NGINX+Windows how to serve a static html file (100kb) to 10k concurrent users

This is the NGINX config file: gzip on; gzip_disable "MSIE [1-6]\."; gzip_vary on; gzip_proxied any; ...
0
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1answer
14 views

Caching (memcache/redis) and multiple servers - best strategy

We're considering best strategy for using cache (memcache or redis based) in our application (Symfony2). It will be deployed on multiple (so far 3) separate machines with load balancing and separate ...
0
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0answers
20 views

HAProxy configuration for RabbitMQ

I have an API that sends messages to RabbitMQ. I have a high availability RabbitMQ cluster behind HAProxy. When I load test my API I start seeing lots of this: Recovering from a network failure... ...
1
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0answers
8 views

haproxy - use acl in backend / shrink my config

in my scenario i must switch servers based on an containing url string &mode=edit or &mode=create between my servers to balance the load. my config is created via script from about 100 ...
-1
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0answers
30 views

What specifications or protocols should I look for in a router to achieve WAN as well as LAN load balancing? [on hold]

My requirement for a router is that it should: Have 2 nos of gigabit WAN ports. Have 4 nos of gigabit LAN ports. Be able to configure load balancing and fail over for both WAN as well as LAN. I ...
1
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2answers
23 views

Cannot access my GitHub Pages website by IP Address

My custom domain works with GitHub Pages but I would like to understand how it actually works. For this example I am not using my custom domain at all. My GitHub Pages repository does not ...
0
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0answers
13 views

Keep doing TCP Retransmission with ACK, PSH

here is my situation: I got two servers, a loadbalancer (prowered by softlayer) and a web server running apache 2.2 and php 5.4. My web application only serve android mobile device. I was tested 2 set ...
2
votes
2answers
19 views

Get hostname from url using Trafficscript

I'm looking to get the hostname from a URL as it comes through Zeus and I've looked through the documentation on Trafficscript and it seems like the only option is regex. Doe Trafficscript have a ...
1
vote
1answer
21 views

HAProxy returns error if server goes down before health check has occured

Let's say I have web01 in my list of backend servers, and web01 goes down. It will take a few seconds for HAProxy to notice the server is down (depending on the health check interval and how long the ...
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0answers
25 views

firewall and load balancer vmware on one physicall server [duplicate]

I have 2 unit server series Rainer SV311C4-2.4 SATA 35 NR, processor Intel Xeon X3430 Quad Core 2.4Ghz 8Mb L3 Cache memory 8GB. Each unit I will install two virtual mechine for firewall and load ...
0
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0answers
13 views

best logic to Load balancing YiiFramework web app

I'm going to launch a Yii framework app next days, and i'm currently searching the best way to deploy it in order to scale and support high traffic. I use Amazon RDS to host the DB, and 2 Memcached ...
0
votes
0answers
20 views

ELB Health Checks incorrectly failing / being unhealthy

Over the weekend, our instances have started being marked as unhealthy, and not being enabled within the load balancer. When going to the public DNS of the instance, followed by the healthcheck.html ...
1
vote
1answer
25 views

Load Balancer and using multiple SSL certificates

Here is our current production configuration at a 3rd party data center: •2 LINUX/CentOS tomcat web servers behind a shared load balancer •DNS entries point to the load balancer •Web apps are ...
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votes
3answers
45 views

Get AWS ELB name from an attached instance

I created one ELB and attached a few instances to this ELB. So when I login into one of these attached instance, I would like to type a command or run a nodejs script that can return me the its ELB ...
2
votes
0answers
128 views

Varnish 3.0.5 round robin director not balancing

I have an architecture with two varnish servers sitting in front of 5 webheads. Each varnish server is configured with a round robin backend director, but at times of moderate to high load varnish ...
2
votes
3answers
593 views

Is a load balancer used once per new client or all the time?

I have 2 servers (S1, S2) at IP's1.1.1.1 and 1.1.1.2, and I would like to load balance traffic on www.example.com to them. I am thinking of having a machine at 1.1.1.3 that would be the load balancer ...
0
votes
1answer
39 views

Scaling Multiple SSL Domains on Multiple EC2 instances in AWS ELB

I'm setting up server that will host multiple SSL domains across a wide range of load balanced EC2 instances and being a programmer who really sucks at network/infrastructure stuff I had some ...
1
vote
3answers
62 views

Load Balancing - PHP/Mysql [closed]

I have a server which relies heavily on a MYSQL database. Recently, there have been load issues and max mysql connection issues. My idea is to have a primary server with the php code and files and a ...
0
votes
0answers
20 views

Redundant load balancing using Apache

I have a cluster of 5 application servers with a single Apache HTTP server sitting in front of them acting as a load balancer (using mod_proxy_ajp). This works well, but the problem is that the load ...
1
vote
2answers
52 views

How can I synchronize 2 web server files with load balance?

I need to setup a website with load balance to accommodate more visitors, I've seen on forums that varnish(balance)->apache(web1&2)->mysql(dbserver) is the way to go. I know how to setup ...
0
votes
1answer
24 views

Apache mod_wl encoding issue for URI part

I'm using Apache2 in combination with mod_wl_20.so to loadbalance to 2 weblogic instances. Apache is listening on 7070. This plugin is partialy removing the encoding of my URI of some searches which ...
0
votes
3answers
74 views

Software load balancer for Windows

I'm looking for a simple load balancing solution for Windows. I have two machines (say host0 and host1), any of them is hosting TCP service (so it can be either host0 or host1, but never host0 and ...
1
vote
1answer
65 views

Any problems with having an active/active HAProxy setup with Keepalived

Apologies if this has been asked before, but I can't seem to find much on it. We're going to be using HAProxy to load balance our MariaDB Galera Cluster. All the articles/tutorials I have seen on ...
2
votes
2answers
111 views

How to find out whether Linode NodeBalancer takes nodes out of rotation

Sometimes my NodeBalancer takes a node out of rotation and I would like to find out about it so I can reboot it. How do I do this? This is the background: I have two websites of the same type, which ...
2
votes
1answer
48 views

Load balancing SDSL + ADSL with Zyxel USG-100

I have a Zyxel gateway/firewall, and two Internet connections : SDSL (4MB up, 4MB down) and ADSL (15MB down, 1MB up). I'm trying to configure my Zyxel to use the two connections, and to use the SDSL ...
0
votes
0answers
16 views

“API” to halt server with HAProxy (by loadbalancer.org) [duplicate]

I have a HAProxy load balancer by loadbalancer.org. I have 3 servers in the cluster and have to halt a server once in a while, for example when I release new code on the server. I would like to be ...
1
vote
0answers
24 views

TCP load balance authentication

Impala is a piece of Cloudera software which implements an ODBC driver on a desktop, which then connects directly to a Hadoop cluster. In our implementation, our Hadoop cluster sits behind a DMZ, in ...
1
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0answers
16 views

File access randomly breaks returning 500.19 erros on IIS

We have two web servers running IIS 8.5 on Windows Server 2012 R2. The two servers are located behind a load balancer. The web servers are running a ASP.NET MVC application which, among other ...
1
vote
1answer
68 views

Is this load balancing / horizontal scaling scheme naive?

I offer my solution to the following problem, and ask you networking and server admin professionals to validate it or poke holes in it. I am interested in any obvious attack vectors or scalability ...
1
vote
1answer
32 views

How to prevent load balancer from failing?

sorry if the question is a bit ambiguous but it is the first time for me to set up a load balancer and I am a little worried. I want to create a Glassfish Cluster, at the moment I am following this ...
0
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0answers
26 views

Automate Live Xen migration of VMs to achieve dynamic load balancing in Open source environment

DRS in Vsphere is paid. Is there exist any alternative to achieve dynamic load balancing through automating live xen vm migration in open source environment ?? Also,if required, how can write our own ...
0
votes
1answer
51 views

Nginx GeoIP load balancing with failover

I am attempting to set up a test Nginx load balanced environment. So far I have sucessfully configured a load balancer nginx-balancer1 and 3 servers to serve webpages nginx1, nginx2 & nginx3. I ...
1
vote
1answer
32 views

Configuring multiple Nginx load balancers for failover

I am attempting to set up a test Nginx load balanced environment. So far I have sucessfully configured a load balancer nginx-balancer1 and 3 servers to serve webpages nginx1, nginx2 & nginx3. ...
0
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0answers
22 views

At what point do I shell out for a load balanced instance? [duplicate]

I'm primarily a node.js developer, and I'm moving my apps over to AWS from Nodejitsu slowly. I was looking at AWS pricing, and it looks like Elastic Load Balancers are quite expense, for a small time ...
1
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0answers
19 views

Writing to Windows Azure Web Sites file system when using multiple Instances

Let's say I have a Windows Azure Web Site instance which I deploy a simple app like Ghost Blog. Will a write to one instance be seen by the other instances? Say I upload an image, or write a post to ...
1
vote
0answers
33 views

Load balacing between balancers using mod-proxy-balancer

Using Apache mod-proxy-balancer, I would like to balance between two balancers. Is this possible? Background: We are in process of upgrading some of our server stack, and for a deployment process we ...
0
votes
1answer
42 views

How to configure HAProxy to route by port without using multiple frontend or listeners

I am trying to configure Haproxy v1.5 for Jabber connections which run on several ports on the same IP. To keep the configuration as simple as possible, I would like to use a single frontend and one ...
0
votes
1answer
45 views

Nginx load balancing based on location

Disclaimer: I'm completely new to load balancing and have minimal experience with nginx. I'm going to be launching a website in a couple months and I want to make sure it stays up and responsive. I ...
0
votes
2answers
45 views

best way to load balance dual esxi

Im hosting a few websites on a single ESXi box that runs Windows Server 2008 R2 with IIS 7. Now I would like to make sure that if the host goes down, the websites will still be live, so I've ordered a ...
0
votes
2answers
38 views

Server sends back its own IP instead of the Proxy's IP

I'm currently trying to add a new dedicated application server. I have a Load Balancer, that dispatch the traffic : LB -- apache2.conf <Location /> ProxyPass balancer://my-cluster/ ...
0
votes
2answers
133 views

One single balancer-manager page for multiple virtual hosts

We're using currently an Apache 2.4 as load-balancer for a multi-master-cluster of three Tomcats-Servers. We can access the internal IP-Address of this load-balancer with an web-browser and change the ...
0
votes
1answer
50 views

Simple Load Balancing Questions for 2 Web and 1 DB server

We currently have one web server and one DB server to serve our websites. Things have been fine but slowly getting worse as the sites consume more and more CPU on the web server. We've reached the ...
2
votes
1answer
51 views

Load balancing Wordpress on Amazon Web Services: Managing changes

I am relatively new to Amazon Web Services and I am trying to get my head around how Elastic Load Balancing will work in context of my wordpress setup. In addition, I would like some advice on ...
0
votes
1answer
20 views

Nginx load balancing based on vhosts

Well, I've a setup with 1 load balancers and 2 backends (with nginx). They are both serving two website, beta.xxx.fr and xxx.fr. I want my load balancer to serve both websites. Have you got any idea ...
0
votes
1answer
18 views

Nginx load-balancing & geographic latency

I've recently been inspired by a blog post from AudioBox highlighting some of their experiences with Amazon EC2 and why they switched over to a self-managed VPS. While the EC2 services certainly look ...
0
votes
0answers
58 views

Load-balancing PPTP connections

I'm trying to load balance two PPTP connections, connected to the same server. I use the following script, but there is no send and receive via PPTP connections. What part am I doing wrong? Are there ...
0
votes
0answers
29 views

nginx loadbalancer is redirecting to the wrong port

I am trying to get the nxinx load balancer to work. I have the following configuration: upstream backend { server app-1.example.com:8001 max_fails=3 fail_timeout=60s; server ...
0
votes
1answer
97 views

HAProxy pgsql-check error

I use HAProxy 1.5-dev21 to load balance PostgreSQL connections over some read-only Postgresql 9.2 servers. Version 1.5 of HAProxy implements a pgsql-check option, similar to mysql-check. Here is my ...