Load balancing is a group of techniques used to ensure that loads are spread between multiple systems. The term is used on networking and server environments, with similar results. Network load balancing involves using multiple connections or links to spread speed or high demand between those ...
0
votes
0answers
8 views
Using HAProxy, matching root URL only in ACL
Using HAProxy, I want to create the following setup:
All requests except root (/), /articles and /blogs go to server1
All requests for root (/), /articles and /blogs go to server2
I can't figure ...
5
votes
4answers
96 views
Weighted round robins via TTL - possible?
I currently use DNS round robin for load balancing, which works great.
The records look like this (I have a ttl of 120 seconds)
;; ANSWER SECTION:
orion.2x.to. 116 IN A 80.237.201.41
...
6
votes
2answers
98 views
Multi-site high availability
We have a SaaS application that we need to be highly available. We already have an expensive, well-maintained Hyper-V failover cluster, but today the datacenter where we host that cluster had a ...
0
votes
2answers
66 views
Distribute the load all around the world
Let's say we're starting a project which is meant to be served all around the world
How am I supposed to distribute the database and server load, and increase (optimize) the service for large ...
1
vote
1answer
48 views
HAProxy stops accepting connections
I've been using HAProxy to loadbalance my appservers for many months without problems. Recently some traffic spikes have lead me to setting the maxconn parameter to rate-limit connections to my ...
0
votes
1answer
45 views
Cannot start up haproxy
Using ubuntu as my server I'm trying to set up load balancing using HAProxy.
When I try to run using "haproxy -f haproxy.cfg" i get this error.
[WARNING] 035/115820 (1148) : [haproxy.main()] ...
-1
votes
0answers
29 views
Apache server crashes and does not resume with a high load
We recently moved our Wordpress blog to a dedicated server (Apache) that already served ~4,000 pages daily. Yesterday the server crashed. We had a high volume of visitors to the blog, ~4,000 with a ...
2
votes
2answers
66 views
Is there a Linux HA software load balancer that serves HTTPS for multiple unrelated domain names but balances to a single web server cluster?
I have a cloud-based (Amazon AWS, Rackspace, whatever) multi-tenant SaaS application, and I need to support HTTPS communications for multiple unrelated tenant domains.
As an illustrative example, ...
0
votes
1answer
21 views
How to access and store data on multi-server setup
My application uses a RESTful api to receive requests from users and generate files on demand. When the file has been made, it responds back with a dl link to said file.
When this was on a single ...
3
votes
1answer
151 views
+50
Pacemaker Active/Active haproxy load balancing
I am using Haproxy to load balance replicated mysql master servers. I am also using Heartbeat and Pacemaker for Active/Active ip failover with two virtual ips on the two load balancers for web server ...
1
vote
3answers
53 views
Loading after a minute
Here is the web site. http://reachourfans.com
when i enter the site, it's loading nothing, and after a minute it's beginning loading the site. I've switched off the Update module, and installed it ...
1
vote
2answers
82 views
Load testing sites behind an EC2 load balancer with ApacheBench
When ever I try to load test a site that is load balanced on EC2 I get the following message:
ab -n 20 -c 20 http://www.somesite.com/
Benchmarking www.somesite.com (be patient)...Send request ...
0
votes
1answer
17 views
Can LVS+Ldirectord load balancing serve two domains?
I have a Load Balancing cluster with two real servers using Direct routing method, there's one domain on the real servers. Now, I only set one virtual IP and two real IP for ldirectord. How to add ...
0
votes
1answer
39 views
Putting varnish in front of a mod_jk balanced Glassfish cluster
I am just trying to get varnish in front of Glassfish instances, which are load balanced with the mod_jk connector in Apache. But I don't really know how to combine them. The AJP_Ports for instances ...
1
vote
2answers
63 views
IP Level Failover for Web Servers With BGP (Am I Insane?)
I've considered using Round-robin DNS failover, but due to various levels of DNS caching, you run the risk of old records pointing to a down site.
If I own my own address space and AS number, in data ...
1
vote
1answer
70 views
Multiple IP address Amazon EC2 for SSL certs?
I have a few clients who I host websites for. Right now I am using a web hosting reseller package to do this, but have been considering moving to Amazon EC2. The only problem is the clients need ...
2
votes
3answers
42 views
Primary domain controller for web hosting + SQL cluster
I was hoping to get some advice here on a web hosting query. We are building an eCommerce website that will basically reside on 2 x web servers (fronted by a load balancer) and interacting with a ...
0
votes
0answers
43 views
How to debug when ELB fails but nginx looks ok?
I'm using Amazon's elastic load balancing across several machines that are running nginx. The problem is, after running for fifteen minutes or so, ELB starts to mark all of the machines as dead. When ...
1
vote
1answer
82 views
HAProxy - Enable maintenance mode if file exists
We're using stunnel and HAProxy for our load balancing needs.
In nginx you can enable a maintenance state, based on the existance of a file on a child server (see Configure nginx to serve a 503 if a ...
1
vote
1answer
60 views
SSL on Multiple Sites, 1 IP, Different Certificates, UCC not an option
We are looking to set up a cloud solution for one of our systems, but we need multiple TLD SSL's
We are only allowed 5 public IP's
Can't use UCC/Wildcard Certs since each client has own cert and ...
1
vote
1answer
50 views
Configuring transactional MSMQ on load-balanced servers
I've got a solution running on a single server right now that uses transactional private queues (msmq/wcf). Windows services consume and process messages on the queues, and the web application layer ...
3
votes
2answers
152 views
Haproxy mysql failover load balancing
I have setup mysql master-master replication and now I am trying to load balance mysql servers with Haproxy.
Load balancer: 192.168.1.5
mysql1: 192.168.1.7
mysql2: 192.168.1.8
The below haproxy ...
0
votes
1answer
83 views
Simple Load Balance Architecture
We currently have a simple 3 server setup:
Cloud NGinx/Apache web server (NGinx serves static, dynamic is proxied to Apache/PHP backend)
Dedicated Database server
Cloud Outgoing email + monitoring ...
1
vote
2answers
52 views
Load balancer vs increased RAM/storage
I'm going to be the first to admit that I'm not a server admin. :) My expertise lies in software development. Having said that, I have a cloud server instance that operates as a web server and one for ...
-1
votes
2answers
63 views
New server: use for SQL Server or Windows (Web)? [closed]
I picked up a new Dell R410 2.8 Ghz 12M cache 32 GB Ram RAID-1/RAID-1 for a good year-end deal. It was purchased mainly to replace my Dell PowerEdge 2850 which is my main WEB server. I run Windows ...
2
votes
2answers
98 views
Load balancing with F5 Big-IP using only a single interface
I've been tasked with configuring our F5 Big-IP LTM. It's running 9.4.8.
I've read through the docs a bit and I'm a little confused. It specifies that there are two default VLANs: internal and ...
1
vote
1answer
57 views
Checking if FTP server drive space available through health monitoring on Zeus Load Balancer / Stingray Traffic Manager
I am trying to find out if the Zeus Load Balancer (now renamed Stingray Traffic Manager) can send out a notification if the FTP server it's trying to connect and transfer files to to is full or ...
1
vote
2answers
42 views
Clustering on Virtual Machine
Can you cluster/load balance on a virtual machine? I figured that would be redundant if the same machine is still performing the work but in virtual areas, or am I wrong?
-1
votes
0answers
44 views
Load Balancing and Dedicated/Virtual Server
I'm not an expert is this area but with regards to load balancing, what are the benefits of using a dedicated server compared to a virtual server? Is there a difference? Costs, ease of use, etc?
3
votes
1answer
90 views
HAProxy and Stunnel PCI Compliance
I am setting up HAProxy to load balance between two web servers. Some of the pages on the site require SSL. Stunnel is handling the https connections and passing them off to haproxy (Stunnel ...
0
votes
0answers
29 views
Outgoing (hardware) load balancer and gateway and DHCP
Here is the scenario:
Two (or more) aDSL routers --> Internet
192.168.1.1
192.168.2.1
...
/\
|
|
\/
Hardware Load Balancer
192.168.255.1
/\
|
|
\/
...
4
votes
1answer
30 views
Multiple TFS “hosts” behind a simple iis loadballancer
I got a simple setup for a way to distribute loads for my websites using (at the moment) 3 IIS servers and Application Request Routing.
I'm wondering, does TFS handle being installed on the 2 ...
0
votes
0answers
25 views
Cluster saturation
I'm looking at running a NoSQL cluster and the question of tcp/ip saturation came up. I'm wondering if a flat network neighborhood topology mightn't alleviate internode congestion. The idea is to have ...
2
votes
1answer
113 views
How do you use hardware load balancers with IP ACLs?
I'm planning to add a hardware load balancer, but I'm not sure if adding one will cause me to lose the ability to restrict traffic by IP ( on folder level by using allow and deny in apache ...
2
votes
3answers
159 views
How to load balance two WAN connections?
Attached is a simple network diagram and some example public IP space I would have.
The Cisco 1800 is currently not being used but can be used (or new hardware can be purchased)
The firewall is a ...
0
votes
1answer
27 views
IIS Session Sharing between Two IIS Instances
For testing purposes, I have 2 sites on the same IIS server that I want the session state to be shared between. The sites are identical (they point to the same folder) and originally they used the ...
0
votes
1answer
41 views
Active - Active Appserver Loadbalancing strategy
Have a tomcat web application running across 6 servers.
3 In our primary site and 3 in the DR site
Our networking team setup 2 sets of load balancing
First layer is Site Level, splits traffic 50/50 ...
1
vote
0answers
128 views
nginx sticky sessions / ip_hash with Socket.io
I am to be load balancing two node.js/Socket.io instances on different boxes with nginx running a simple notifications service with a retroactive event for new clients.
I don't think there will be ...
1
vote
1answer
70 views
Load balancing based on client certificate with Apache mod_proxy_ajp and Tomcat
Currently, I am using mod_proxy_ajp to load balance requests to multiple Tomcat servers. Callers are authenticated using client certificates and an ACL. This has been working fine, callers are routed ...
0
votes
0answers
43 views
Nginx Load Balancer issue
We are using Nginx As a load balancer for multiple riak nodes. The setup worked fine for some time(few hours) before Nginx started giving bad gateway 502 errors. On checking the individual nodes ...
0
votes
0answers
64 views
How do you scale PUSH server on multiple machines?
I am thinking about setting up multiple servers under a load balancer that will use PUSH with websockets. I will be using SSL, so for that reason I don't think I can use sticky sessions. So is there a ...
1
vote
1answer
73 views
Can HAProxy respond with a specific sub domain that represents a backend server?
Say someone makes a http get/post request to api.example.com/a/b
Now say I have 10 servers setup as my backend servers. I want ha proxy to act as a load balancer and during the request handshake ...
1
vote
1answer
129 views
A lot of errors 400 access.log with Nginx and loadbalancer
Hy,
I have juste install nginx for my website, and everything is working well and very fast :)
But i have this kind of error in my access log :
IP - - [30/Dec/2011:11:06:00 +0000] - "-" 400 0 "-" ...
0
votes
0answers
69 views
supporting web sockets with ZXTM load balancer (zeus / stingray traffic manager)
I have been scouring the internet for information regarding setting up ZXTM to properly load balance web socket connections. ( and also generic information for this task would be handy )
It seems ...
0
votes
1answer
198 views
Load Balancing and Clustering using mod_proxy_ajp on Apache HTTP Server 2.2.21 and Tomcat 7.0.23
I've been struggling to make load balancing and clustering working using these combination:
Apache HTTP Server 2.2.21 (httpd-2.2.21-win32-x86-openssl-0.9.8r) using mod_proxy_ajp with sticky session ...
1
vote
0answers
52 views
using AWS autoscaling to reboot unhealthy instance
I intend to reboot a running AWS instance which has been marked as unhealthy behind an ELB.
I have a setup where 2 instances are behind a Load Balancer and one of them contains lot of (>200 Gb) data ...
1
vote
2answers
57 views
Increasing the concurrent user performance in LAMP application
We have a LAMP application where we have started to feel the performance pinch due to large number of concurrent users connecting to the application. I have looked at the individual parameters of ...
0
votes
3answers
67 views
Load balancing across application servers
This is more a question of theory in order to help me as a developer understand the process our sysadmins are going to use in app deployment to distribute our app. I'd really appreciate some insight, ...
-1
votes
1answer
104 views
What is the best Load Balancing for linux? [closed]
Does any one know a simple but good load balancer that can handle 2000 concurrent connections through http?
It will be installed on ubuntu server or you can recommend a OS that it will work better ...
2
votes
2answers
220 views
How do you create a zone apex alias that points to a Elastic Load Balancer in the Route 53 GUI?
I created aliases for my domain name's zone apex using the ELB CLI as described in Elastic Load Balancing Developer Guide. I also added a AAAA record using the --rr-type AAAA flag, which is not ...
