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 (4)

1
vote
1answer
596 views

Cisco dual static default routes to WAN

I am trying to setup Dual WAN in our office because our single VDSL modem couldnt handle our web traffic any longer. So we now have two VDSL modems (Sagecom FAST2864) they cant go into bridge mode ...
0
votes
1answer
58 views

How to install pulse during RHEL 5.9 install

I am desperately trying to install pulse on a rhel5.9 machine. I have tried googling all over but all I get are instruction on how to configure pulse/piranha on an already installed box. I have ...
0
votes
1answer
194 views

Solr Replication without using zookeeper

The application that I am currently working on does not need real time indexing. I am using Solr as the indexing engine and I want to setup a High Availability Solr cluster with 2 replica nodes. Seems ...
5
votes
2answers
149 views

HAProxy not balancing server load fairly

HAProxy doesn't seem to keep the connections to the servers balanced. Keep this in mind: using HAProxy v1.3.26 5 equally balanced server specs algorithm is round robin, but no weights are applied ...
0
votes
1answer
36 views

redundancy / load balancing on 2 unmanaged dedicated Windows-based servers

We normally host our dedicated servers in an unmanaged data centre, i.e we just purchase the server and we can manage it ourselves via remote desktop connection. We cannot install / configure any ...
1
vote
6answers
227 views

Use two website hostings for better availability

I have two VPS servers from two different hosting companies. I want to make some fallback to second VPS if first is not available (preferably automatic). I understand that if I have a single ...
5
votes
2answers
135 views

Heartbeat Aware Load balancing

I am using Haproxy for load balance my web servers. Not all of them has same resources. Typical loadbalancing algorithms caused some low end servers to overload as LB isn't hearbeat aware. Is the a ...
0
votes
1answer
216 views

HAProxy and streaming server bottleneck concern

I am investigating into HAProxy to use as a load balancer for a number of nginx servers. Each server is streaming a static file (audio file) from it. Nginx will be using a symfony2 framework. In ...
1
vote
0answers
123 views

Setting up balancer-manager with mod_status on load balancing apache machine

I am setting up a Centos machine with Apache running on it for load balancing between two application webservers. Normally I would do all this with an F5 (or other hardware LB) but the customer is not ...
0
votes
1answer
80 views

Loadbalancing download server with nginx + haproxy

I need some info. I have been looking for this solution all over the google, but could not find it. I am trying to setup HAProxy to balance the downloaders in one server not send them to other servers ...
2
votes
2answers
402 views

Azure Load balancing internal instances of web/worker roles?

As far as I know Azure does not have a load balancer for internal services, internal endpoints are not load balanced. But can someone have implemented a "soft" solution, or can advice me some helpful ...
0
votes
1answer
63 views

How to use a load balancer with apache with php based applications?

I have found that i need to add another server to my setup but my web application is designed with php. Basically, in my application, there is a mkdir command that makes a directory for the user. If i ...
0
votes
1answer
108 views

Load balancing with DNSMadeEasy and Nginx as web server

I am planning to setup my web application in 2 different geographical locations with 2 application server replica in each zone. To load balance the application servers I am thinking of using ...
0
votes
1answer
597 views

Zen Load Balancer HTTPS to HTTPS

I've been struggling with an issue that I am hoping someone can help with. Basically, I have setup a working Zen Load Balancer going from HTTPS to HTTP but I am struggling with getting it to work ...
-3
votes
1answer
250 views

Message Queuing vs. Load Balancing. I don't truly understand the difference [closed]

Help me to understand something. I've looked at several enterprise application architectures, and I've noticed that several of them use a Message Queue service, like ActiveMQ or RabbitMQ. I have ...
0
votes
0answers
71 views

Blocked insecure content chrome

I am working with haproxy to configure ssl. in ha.cfg i am writing frontend https bind *:443 ssl crt /etc/ssl/ssl.key/myserver.crt acl hari path_beg /customers acl css path_beg ...
0
votes
1answer
351 views

Unable to configure haproxy with ssl

I want to make my server ssl protected, it has two parts one for website and another for application. to balance them we have used haproxy. Now we want to secure this haproxy. I have installed the ...
1
vote
2answers
143 views

What DNS servers to use with multiple connections

I have a complex configuration of multiple ADSL connections from multiple ISPs being load balanced by a Draytek Vigor 3300V+ My question is what DNS settings should I use. Should I use the ISP ...
1
vote
1answer
184 views

Reloading New Nginx Configuration With No Downtime

I have a Nginx server which constantly deals with high loads of requests. I want to be able to alter the configuration file of the server and reload it dynamically with zero downtime. I am running ...
1
vote
0answers
99 views

Any way to route MSMQ messages based on label?

I have a system with one MSMQ sender (generates about 10k messages/sec) and one MSMQ receiver (2k messages/sec). Generating and sending messages is fast, reading and processing is slow. Hence I want ...
0
votes
0answers
101 views

ldirectord and ghost nodes

So I've setup LDirectord to load balance (rr) between two web servers. Http works great, but https does not, so Im trying to isolate the problem by pointing Ldirector at a test web server on https ...
3
votes
1answer
191 views

AWS Load Balancer and IPv6

Allow me to apologize ahead of time. I know this question has been asked and in one way or another answered multiple times across the net. Problem is, all the solutions and answers are contradicting ...
0
votes
1answer
83 views

multi-site web farm for IIS [duplicate]

I am having a terrible time finding information on this and I am hoping someone here can help or point me in the right direction. I am working on a project of setting up an IIS webfarm that is ...
-1
votes
1answer
144 views

nginx correct remote address when direct access [closed]

I have a simple nginx site config defined like that: server { listen 8082; server_name localhost; root /var/www/server.com/public; add_header direct_address $remote_addr; ...
1
vote
2answers
203 views

Should I compress resources with a loadbalancer (Nginx) or with a web server (IIS7)?

I have the following setup: Nginx (1.1.19) on the front as a reverse proxy / loadbalancer IIS7 at the back as web servers MySQL as a database I am trying to figure out whether to compress static ...
0
votes
1answer
62 views

Detect if the original node failed in tomcat cluster

I have two nodes in a cluster. Node1 initially servers requests. Loadbalancer redirects the request to node 2 if the first node fails. I would like to know if there is a way for the Node 2 to detect ...
0
votes
1answer
46 views

Firewall to Load Balancer throughput

I have a theory question for you networking guru's if wouldn't mind answering :). Let's say I have a Cisco ASA 5510 who's cleartext throughput is 300Mbps and sitting behind that I have Citrix MPX 5650 ...
2
votes
0answers
48 views

Load Balancing and Administration of High Traffic Servers [closed]

I am currently thinking of how to best set up my server architecture for a high traffic website which scrapes data from the internet and provides a REST API. One idea is renting root servers in ...
0
votes
1answer
131 views

Load balancers, multiple data centers and url based routing

There is one data center - dc1. There is a business need to setup another data center - dc2 in another geography and there might be more in the future say dc3. Within the data center dc1: There are ...
0
votes
1answer
90 views

IIS Load balanced site redirects to external service, but should to return to correct server

We're implementing a pair of network load balancers for our externally and internally facing web servers. we do not plan to use session state services on either NLB, and accept that if a node goes ...
0
votes
1answer
324 views

Session replication in Tomcat

I have setup my cluster with one loadbalancer and 2 nodes with sticky session. I am using mod_jk for loadbalancing. I am having problem with proper session replication. I am using Tomcat 6. When I ...
0
votes
1answer
201 views

nginx redirect what is not coming from load balancing

I have nginx on SERVER1 that is acting as load balancing between SERVER1 and SERVER2 in SERVER1 I have the upstream for the load balancing defined as : upstream server # SELF SERVER1 ...
0
votes
1answer
193 views

Varnish caching layer vs load balancer

We have around 10-15 different websites which at the moment are hosted on two Rackspace cloud servers with 4GB RAM. These two servers are totally independent of each other, we randomly choose a ...
2
votes
1answer
375 views

What is the best way to load balance multiple sock5 proxys on seperate VM's in the same datacenter?

I am currently trying to figure out the best way to load balance multiple sock 5 proxy servers for my new project. I was looking into programs like HA proxy, but it seems to only load balance HTTP ...
4
votes
1answer
222 views

Running pfSense server after load balancer, dhcp?

I got the following situation: Two wan, load balanced by a hardware load balancing router Wifi network (can be up to twenty AP's) And I need the following: Need a captive portal where clients ...
0
votes
1answer
474 views

How can I use SSL behind a load balancer and still get the client IP?

Note, I can't use SSL termination at the load balancer, due to network security related issues. The client IP I get is of course that of the load balancer. I know that the load balancer can't modify ...
0
votes
1answer
165 views

Why does my load balancer add the header “Via 1.1 localhost.localdomain”

My load balancer (a Rackspace Cloud Load Balancer instance) adds the Via header with these values: Via 1.1 localhost.localdomain What does this mean and is it harmful? Note: According to another ...
0
votes
1answer
164 views

corosync and multiple load balancers

I am trying to provide HA capabilities for our load balancers (nginx, pgpool and haproxy optionally) using pacemaker/corosync. I have defined three primitives: 1 for the failover IP, 1 for ...
1
vote
3answers
987 views

mod_jk produces Error smh errno=13

I am trying to use mod_jk for load balancing. Loadbalancer 172.17.8.189 (HTTPD+mod_jk) Node1 172.17.8.193 (apache tomcat instance 1) Node2 172.17.8.196 (apache tomcat instance 2) I checked my tomcat ...
0
votes
1answer
83 views

Load balancing of recipients email adresses on Linux SMTP servers

Background information: We are a provider of web-hosting and email (among other services) and we need several load balanced SMTP servers to fix all our customers needs. The problem: Every once and a ...
1
vote
2answers
350 views

One hostname and two servers in different countries

I have a site, let it be www.site.com/ (ASP NET MVC, but that's doesn't really matter) I have another site, let it be www.secondsite.vi/ (it hosts in Vietnam). The structure of the sites is the same, ...
0
votes
1answer
36 views

Loadbalancer passing client IP to the web server (HTTPS)

Can a loadbalacer (reverse proxy) configured with sticky sessions pass on the client IP to the Web servers if the session is SSL encrypted without doing SSL termination? Is it even possible to have ...
1
vote
1answer
262 views

Passing Client IP across Multiple Proxies

I have a load balancer in front of an Apache httpd server, which in turn is in front of a server running Tomcat6. We're using Tomcat to running Shibboleth's IdP. The follow looks like this: Client ...
3
votes
1answer
153 views

Is there a backend-aware load balancer for Rails/Passenger?

We have 3 Ruby on Rails applications (A, B and C) installed on a number of application servers. Our front end is HAProxy, backend is Apache + Phusion Passenger. Originally we had all 3 Rails apps ...
1
vote
0answers
89 views

Nginx doesn't rebound from 502 Bad Gateway

We have a situation where a site starts to serve a 502 Bad Gateway but doesn't seem to recover after the upstream servers rebound. The nginx server is setup to proxy/load balance requests for two ...
1
vote
2answers
106 views

Load Balancing Between NAS Boxes

We currently have a Thecus N12000V with 16 TB in RAID 10 (currently half full). From what I've read online, this nets about 50MB/s. Due to too many people connecting to it, most people are getting ...
1
vote
1answer
64 views

Round Robin with single source

We have built ourselves an API and are busy scaling it. At current we have 6 hosts and we use DNS Round Robin to spread the load. However a lot of our traffic comes from single source. We plug into ...
0
votes
1answer
95 views

AWS Beanstalk / load balancer doesnt distribute load

I have two instances of EC2 running with Tomcat servers. I deployed my war using beanstalk. My load balancer has both the EC2 machines listed under the Instances tab. I'm trying to do some load ...
0
votes
1answer
52 views

DNS Load Balance for Static Website

This is more of a educational question in comparison to a production environment. I have an AD environment with two IIS servers hosting the identical website content. For arguements sake lets say it ...
0
votes
1answer
140 views

How can I allow traffic only from my load balancer, if the private IP of the load balancer changes all the time?

I'd like to limit (via iptables or otherwise) inbound traffic on 80/443 to traffic coming from my load balancer. I have the public IP (which doesn't change, of course), but the only private IP info I ...