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
18 views

How I Can install HAProxy in VPS? [on hold]

I Have three VPS by CentOs OS , I installed and Config HAproxy in "A" VPS for Load balancing, and I installed Apache in "B" and "C" VPS , I configed "A" VPS and Add "B" and "C" IP's in ...
1
vote
1answer
17 views

Setting up load balancing on 3 apache servers

I want to set up load balancing on my 3 Apache servers that I have created. The 3 addressed that I have used for the server are, 192.168.151.101, .102 and .103 I have then created a load balance ...
2
votes
3answers
35 views

Filter network traffic through 2 WANs depending on IP?

I've searched thoroughly in an attempt to find a similar question here, but aside from finding information about pfSense (which appears to only support 1 WAN?) I can't find much else... Our current ...
2
votes
0answers
17 views

using apache2 mod_proxy(_balancer) for 3+3 tomcat failover configuration

we have got 3 active Tomcat instances, the load should be distributed evenly amongst them (sticky sessions via jvmroute, ajp). We also have got 3 failover Tomcat instances running. If one of the 3 ...
0
votes
0answers
10 views

IPsec, PepVPN, SpeedFusion Hot Failover and SpeedFusion Bonding (PepLink Load balancer)

I was looking for the difference between IPsec, PepVPN, SpeedFusion Hot Failover and SpeedFusion Bonding (PepLink Load balancer) but i can't find something well explained. I'll be glad if someone can ...
4
votes
1answer
36 views

SAS balancing vs Network balancing

I want to configure file server in MS Windows Server 2012 R2 environment, which would load balance traffic. I have got a SAS disk array with 2 SAS controllers which is connected to 2 Hyper-V cluster ...
0
votes
0answers
44 views

How to load balance traffic from local Squid in pfsense when using Multi-WAN?

I have a multi-wan PFSense setup with Squid for HTTP(S) navigation. However one of the links (the default WAN gateways) is always used at 100% while the other link is rarely used. Reading the ...
0
votes
1answer
19 views

HAProxy - balance according to url_parameter

I have 2 different tomcat servers: T1 , T2 My clients that refer to my load balancer are providing the url parameter called "gender" (0 - for Male users , 1 - for Female users). only the url ...
1
vote
0answers
23 views

Is it reasonable to use an external website as a health check

I have a 4 proxy servers spread across a couple of datacentres that serve a large number of users on a WAN. These are load balanced using an F5 GTM located at each site. My goal is to write a health ...
2
votes
1answer
97 views

Network WAN load-balancing over Multiple Firewalls

Currently we have a Cisco ISA570 Firewall which does failover load-balancing between two ISP links. I would like to get a Sonicwall NSA6000 which should be primary and the ISA570 as a failover ...
0
votes
1answer
48 views

How to create an internal/private load balancer in google compute engine

I have two clusters. Cluster A (on google container engine) is a public facing cluster and it needs to connect to a private Cluster B (a click-to-deploy cluster on GCE) to access a service. I would ...
1
vote
1answer
30 views

Ipvsadm to monitor connections on a load balancer

I am working on to set up Haproxy on a load balancer with two backend web servers in the first period. The problem I am facing is to monitor number of connections to each of my web servers. I have ...
0
votes
0answers
31 views

nginx cache always returns MISS

I have 4 upstream server and I want to serve static files. I don't want to cache API calls response. This is what my upstream server returns for a sample CSS file: curl --verbose -X GET ...
2
votes
0answers
33 views

Is it possible to use both an ILB and an ELB (listening on the same port) in the same Azure cloud service?

I'm building a test Lync deployment on Azure; yes, I know this is not supported, hence "test". Lync Front-End servers expose two set of web services, one for internal users and one for external ones; ...
2
votes
1answer
31 views

Benchmarking load balaners

I am working on to benchmark two different load balancers (pound and haproxy), but are unsure how this can be done. Of couse httperf can be used, but it may be technically difficult to actually make a ...
0
votes
0answers
10 views

appropriate traffic to load test couchdb horizontal scaling

I'm designing the CouchDB backend to my web application, and I want to estimate how many GETs and PUTs per second I can achieve with a given number of instances. (Arguably I should be testing view ...
0
votes
1answer
32 views

Layer 7 Load Balancing with on-premises exchange and Office 365

I would like to create essentially a layer 7 balanced redundant exchange setup where if the on-premises server fails it will automatically switch over to the office 365 Exchange services. I was ...
0
votes
0answers
24 views

Using a Load Balancer in front of SQL Server

We are setting up SQL Server 2014 AG with multiple secondary readonly instances since we have some significant queries that are killing our primary. What we would like to do is put a Load Balancer in ...
0
votes
1answer
21 views

MySQL Bad Handshake to MySQL Cluster behind Proxy

I have just set up a MySQL cluster using five hyperV linux boxes (2x management nodes, 2 data nodes and 1 proxy) having followed (with a bit of tweaking) the instructions here. Everything works fine ...
0
votes
1answer
23 views

Load Balanced - AutoScaled infrastructure AWS

I am currently setting up an environment in which we would like to have one server auto scaled and load balanced based on resource usage. I created the load balancer and have the instance running ...
0
votes
0answers
45 views

Bad Gateway - NGINX Load Balancer Cloudflare

I have configured an NGINX 'load-balancer' to sit in front of my site. Right now my backend consists of only one server, but I plan to add more to actually utilize the 'load-balancing' of NGINX. If I ...
-1
votes
0answers
36 views

Load Balancing WAN1/WAN2 - Fortinet 100D

I have a FORTINET 100D, I don't understand how to set load balancing of two lines (WAN1-WAN2).. I would like that fortinet can manage requests (hotspot wifi) according to the load of a single WAN.. ...
0
votes
1answer
54 views

Exposing port 80 and 443 on Google kubernetes loadbalancer service

I followed the guestbook tutorial from Google and created my own configuration files from it. So farm everything is working fine. Now, I would like to expose the port 80 and 443 from my webserver ...
0
votes
1answer
33 views

Syncing Digital Ocean VPSs behing NGINX Load Balancer

This is a higher level, i.e. I just need avenues to explore here, question. I'm trying to set up an NGINX load balancer, behind which sit two different NGINX VPSs. Neither of the backends is a ...
2
votes
1answer
155 views

Why Failover instead of Load Balancing for HA

From my understanding with failover clustering, only one machine is actually working, which means the other one(s) are sitting idle. So why would one use failover clustering instead of using a load ...
-2
votes
0answers
33 views

Load balancing and windows authentication

If I have a web service that is set up to use windows authentication, there will be a challenge response communication between the client and server (win 2008r2), as shown below. Ideally I would like ...
0
votes
0answers
14 views

web server to control 4 adsl lines? [closed]

Very new to this and been given a huge task....I've been asked to rebuild/redesign an existing network that has 4 ADSL lines, 3 servers (windows 2012 r2)- LAN, WEB, Database and 8 clients + switch, i ...
0
votes
0answers
34 views

Unable to start keepalived

I am trying to create load balancer using Virtual IP. I referred this link Load Balancer using Virtual IP. After configuring by mistake I started the backup server's keepalived service first and then ...
0
votes
0answers
72 views

Nginx Echo Subrequest not working

I am new to Nginx. My requirement is I need to make a service call but along with proxy passing that request, I need to make call to another service/servlet. For this I decided to use Echo module to ...
0
votes
1answer
41 views

How does load balancing work for a coreOS cluster?

Preface: I don't know much about load balancing. Say I have a few virtual machines on a cloud service like Amazon, running a few instances of coreOS each. How exactly does load balancing work in ...
1
vote
2answers
32 views

Does Windows Network Load Balancing require any specific ports to be open?

I have two Windows 2012 servers, joined in a Windows Network Load Balancing cluster. I have been trying to find how the NLB heartbeat message is exchanged between those servers (to make sure it will ...
0
votes
0answers
43 views

Weird 502 responses of AWS ELB

My website suddenly failed to work this afternoon, responding every request with 502. I've set up 3 backend instances behind ELB, each with Nginx installed. At first, I suspected there's something ...
0
votes
0answers
31 views

F5 Load Balancing - axd files comes with 401 Unauthorized

I've got a problem I'm trying to resolve for some time. We have: 1 F5 Load Balancer 2 IIS servers with the same machine/validation keys behind the F5 LB Our problem is that our application hosted ...
3
votes
0answers
103 views

Common back pressure strategies for services under sustained high load

I'm wondering what are the common backpressure strategies people use for their web services? Imagine your service operates under heavy load, and at some point the load reaches 120% of your capacity. ...
3
votes
1answer
62 views

Run different instances behind one load balancer?

When using Amazon AWS is it possible to run different types of instances behind an load balancer? Let's say as base instance you have an t2.small and when having some more load you want an t2.micro ...
1
vote
1answer
27 views

One SSL certificate for load balancing amazon instances

As the title says I want to have one SSL certificate for multiple instances in amazon AWS. The multiple instances are connected to the internet through an load balancer. To make an SSL certificate and ...
3
votes
2answers
242 views

Remote Desktop Server farm stops working

A previously nicely functioning Remote Desktop Server Farm ahs stopped working two days ago. The setup is as follows: DNS resolves "myfarm.mydomain.local" to the IPs of all the farm member servers ...
0
votes
0answers
25 views

pfSense WAN load balancing across two IPs (has single gateway)

My virtual setup has two IPs, but they rely on the same gateway. I had this configured: interface - type - IP address - Gateway em0 - WAN1 - 172.16.155.131 - 172.16.155.2 em1 - LAN ...
0
votes
1answer
34 views

Deploy multiple Web services versions at same domain

I would like to have all my Web services versions deployed at the same domain, like this: rest.mydomain.com/v1/ rest.mydomain.com/v2/ ... But these different versions are in different servers. ...
0
votes
1answer
28 views

HAProxy loadbalancing wildcards

This is an example of my loadbalancer file for a single DNS entry. acl: - 'is_site_net hdr(host) -i site.net’ use_backend: - 'site_net if is_site.net whitelist_list’ site_net: options: ...
0
votes
1answer
30 views

How to health check hosts over HTTPS behind the load-balancer?

I have NGINX serving my site over HTTPS on EC2 hosts behind Elastic Load Balancer. I need to set up a proper health-check in ELB. However, I cannot use https://www.example.com because I need to ...
1
vote
0answers
71 views

Haproxy backend server down due to layer 6 invalid response failed ssl handashake?

The scenario is we have two servers which are in different network . We want to have ssl communication from client to front-end and from front-end to back-end ! the front-end able to get ssl ...
2
votes
0answers
106 views

Nginx as a load balancer. Frequent upstream timed out (110: Connection timed out) while connecting to upstream

I'm trying to use nginx on a centos 7 virtual machine as a load balancer to replace an aging Coyote Point hardware device. However in one of our webapps we're seeing frequent and continual upstream ...
0
votes
1answer
24 views

Load balance prevent from seeing email

Some of our email are hosted with Network Solution, Yesterday we setup load balance on our WAN connection. Since we did it, our user cant log on to their web mail interface. Each time they try to log ...
2
votes
1answer
78 views

NGINX load balancing not working as expected

I have an ubuntu system working as a load balancer and the /etc/nginx/sites-available/default looks like this: http { upstream myapp1 { server 192.168.0.20:80; } server { ...
0
votes
0answers
11 views

AWS ELB 400 BAD_REQUEST with space at the end of a URI

We're using AWS ELB for HTTP/S load balancing, and we've run into a pretty crazy issue with the ELB. $ curl -i "http://yourdomain.com/ " HTTP/1.1 400 BAD_REQUEST Content-Length: 0 Connection: Close ...
0
votes
0answers
50 views

Simulate load balancing on localhost using IIS and Application Request Routing

I want to simulate website load balancing on my development machine using IIS and Application Request Routing. I was able to "load balance" between two external sites, but trying to do the same with ...
1
vote
0answers
25 views

Apache mod_jk LB synchronization server startup + application startup time

after a long search I can´t found a solution or path to solve my problem with synchronization startup of Apache and Backend servers. I have a Apache2 using a LoadBalancer with mod_jk that balance ...
0
votes
2answers
11 views

NGINX with “serverpool” as the LB for DIFFERENT DOMAINS on same Apache Servers?

I have nginx as a LB. And the 2 Apaches as the web servers. Lets say i got different domains: www.example.com checkout.example.com Both domains will be in same 2 Apache Servers. But ofcoz under ...
0
votes
0answers
42 views

How haproxy understand URLs, URI, HOSTs

I know that haproxy understand urls, but here when I want to test if haproxy is up I acess the machine name at browser and it redirects to the desired node.js server. This request is usually a ...