Tagged Questions
0
votes
0answers
37 views
Need to set up a shared file system for load-balanced site in Amazon AWS
I have two load-balanced nodes and rather than synchronizing two file systems, I would like to try a shared file system. What is the best way to do this in AWS? I am using Windows Server 2003 for the ...
0
votes
2answers
63 views
What is the advantage of having ELB infront of your NGINX servers?
I've looked into a lot of back end setups on Amazon Web Services, especially that of Instagram's. On their Instgram Engineering Blog they mentioned how they have an Elastic Load Balancer in front of ...
0
votes
1answer
59 views
AWS VPC ELB vs. Custom Load Balancing
So I'm wondering if this is a good idea. I have a Amazon AWS VPC setup with a public and private subnets. So I all ready get the Internet Gateway and NAT. I was going to setup all my web servers ...
0
votes
1answer
35 views
Amazon Web Service monitoring
I have deployed a web app on an AWS server. I have following questions:
Monitoring
my websphere app server status capacity monitoring?
uptime thru Amazon CloudWatch metrics?
Load balancing
...
0
votes
1answer
34 views
lighttpd server-status blank host and uri
Looking at the server-status on lighttpd, running behind a AWS load balancer, I'm seeing some long-lived (up to around 60 seconds) requests, in a "read" state with a blank host and blank URI. What ...
0
votes
1answer
142 views
Amazon ELB and multi domain on Nginx server
I have an EC2 instance running Nginx with several domains.
My config starts like this:
server {
listen 80;
#disable_symlinks off;
server_name _; #allow few domains
#Adding 'www.' to ...
0
votes
1answer
47 views
creating elastic load balancer in VPC
I read that its possible to create elastic load balancer in VPC but I couln't find how to create it. How could I create elastic load balancer in a VPC?
1
vote
1answer
166 views
Load balancing with High Availability - SQL Server + IIS using AWS
This is my first time load-balancing with high-availability using Windows and SQL Server. Looking for some validation and input on my planned setup.
Now, typically when I want to create a HA ...
0
votes
0answers
126 views
Client IP address behind ELB + Getting my own IP on the EC2 Server
I want to get the real IP address of the client when I am behind Amazon Elastic Load Balancer (ELB), not the Load Balancer IP. I know that ELB populates "X-Forwarded-For" header with the original ...
0
votes
1answer
66 views
“Big picture” to use Amazon load balancer solution for blog
I have a client with a popular Wordpress blog that experiences occasional short-term traffic spikes (when the site is promoted on national TV). The blog is already hosted on an Amazon EC2 instance, ...
1
vote
1answer
271 views
How should I configure my ELB health check when using NameVirtualHosts and redirecting to www?
My ELB keeps taking my instances out of service, because the HTTP health check is failing.
We have a DNS wildcard, and redirect everything to www:
vhost.conf:
ServerName www.example.com
ServerAlias ...
1
vote
1answer
71 views
Internal IP of amazon Load Balancer
Is there any way to find out the internal IP of my ELB. I realise it's dynamic and changes every so often but I'm looking into a large number of packets flooding the server and all I have to go on is ...
0
votes
1answer
133 views
What will happen to my EBS data when autoscaling my EC2 instance?
I have various websites hosted on 1 same single EC2 instance so far. In the root EBS volume of such instance I have:
Codes and files of the websites which change every hour if not every minute
Apache ...
0
votes
2answers
312 views
Reverse Proxy Server Cloud Architecture (AWS + nginx)
Currently I cache responses using nginx + fastcgi. I'm in the process of moving my app to AWS. I'm architecting a horizontally scaled approach, but trying to determine where best to put nginx + ...
1
vote
1answer
143 views
How to use ELB to load balance redis slaves and use sec groups
I have a load balancer listing on TCP port 6379 on ELB.
I have a redis sec group that only allows amazon-elb/sg-843f59ed (amazon-elb-sg), and another sec group called frontend_servers.
6379 ...
1
vote
1answer
161 views
EC2 Multiple website on one instance, load balance
I have a question. My instance is currently using LAMP STACK by Bitnami, the first site is LAMP, the second is Magneto STACK by bitnami, My focus is on Magneto Stack. I was thinking of having the ...
1
vote
1answer
131 views
aws load balancer ssl termination implications
If I set up a load balancer on aws that terminates ssl at the load balancer, then the requests being sent to the application server is in plain text. That has definite security implications. How do ...
0
votes
0answers
70 views
InvalidCleintTokenId while attaching server to load balancer
I have tried about 20 times but the server don't get attach to the load balancer. The error seems to be InvalidClientTokenId, but I don't know what that means and how can I attach the server with load ...
-1
votes
2answers
216 views
Using a AWS EC2 Server to host a busy website and I need to set up a loadbalancing [closed]
My company has one EC2 server running on AWS with a MYSQL-DB and Apache on the same instance. This one instance hosts a website built on PHP Zend Framework.
The site runs like crap when it starts ...
0
votes
1answer
80 views
Looking for the best ec2 setup for 3 sites totaling in 1.5 mil in traffic monthly [closed]
I am looking to consolidate our current aws setup of 2 Large ubuntu ec2 servers and 2 large RDS server for our 3 websites that have a total of about 1.5 million hits a month and increasing every month ...
1
vote
1answer
128 views
EC2 load balancer - difference between “Load Balancer” and “Application” Generated Cookie Stickiness
The stickiness of an elastic load balancer can be set to one of three options
Disable Stickiness
Enable Load Balancer Generated Cookie Stickiness
Enable Application Generated Cookie Stickiness
...
0
votes
1answer
533 views
Back end ec2 instance is accessible through ssh and browser but fails load balancer health check
I'm setting up a load balancer for the first time so please bear with me as I try to provide as much detail (I'll be checking back on this question every 15 minutes so I can speedily reply to any ...
2
votes
2answers
515 views
How does one point a domain to a load balancer that doesn't have a stable IP?
I'm trying to point mydomain.eu to an AWS load balancer, which, by its nature, does not have a stable IP, so I think I'm supposed to point the A record to a subdomain at Amazon, but as far as I can ...
0
votes
2answers
73 views
Uploading then Serving Images on a Load Balanced Amazon AWS Setup
I am setting up a load balanced system on Amazon AWS. I will be uploading photos to my server and then reading the photos off the server from another device.
Let's say I have Server-A and Server-B ...
0
votes
1answer
114 views
Load balancing for PHP script on AWS [duplicate]
Possible Duplicate:
How do you do Load Testing and Capacity Planning for Web Sites
I hope this is the proper place to ask this. I put it up in webapps and it was closed without a ...
1
vote
2answers
414 views
Sticky Load Balancing with AWS
I have just setup a load balancer with AWS for a few instances as search engine crawlers were bringing down the site (it has millions of pages). Parts of the site allow you to login so I selected:
...
0
votes
0answers
193 views
AWS SSL Load Balancer
OK, I am looking for some pointers.
Basically I have a white-label app/site that will allow users to setup their own domain to use for their customer front-end.
We have 2 dedicated servers and a load ...
1
vote
1answer
232 views
create a CNAME record for AWS LoadBalancer DNS name
I am trying to setup a loadBalancer on AWS. The A-Record it gave me looks like myLoadBalancer-**********.us-east-1.elb.amazonaws.com
however when i try to put that in my domain registrars A-Record, i ...
2
votes
2answers
420 views
Amazon EC2 Elastic Load Balancing - strategy for zero downtime server restart
I have 5 web servers (Apache/mod_perl) behind Amazon EC2 Elastic Load Balancing, when I deploy codes to the web servers, I am doing this..
For each machine, shutdown the Apache
Update the code
Start ...
4
votes
2answers
574 views
Load Balancing on Amazon (AWS) and staying up to date
I would like to have a load balancer for my site and have the site up to date.
The load balancer will take the AMI I select and spin up more of those instances when processing power hits a certain ...
3
votes
1answer
554 views
Amazon AWS Static IP & ELB Load Balancing Alternatives
I am currently using Amazon AWS to launch a blogging service which offers two different ways to display content to the users
Using their own subdomain : blog.mywebsite.com
Using their own domain : ...
3
votes
3answers
1k 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 ...
2
votes
1answer
211 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
145 views
Need some advice on a deployment
So I am about to get started deploying a complicated infrastructure as a hosting environment for several high traffic sites. I will be using ec2 for the servers and other different services from AWS. ...
1
vote
3answers
393 views
Can you change an AWS Elastic Load Balancer health check without causing instances to go out of service?
For a number of reasons I need to change the health check URL of a live site behind an ELB. The ELB is configured for health checks every 30 seconds, with a healthy threshold of 2 and unhealthy ...
1
vote
1answer
70 views
AWS - Load balance to different clusters
So I'm using ELB to load balance incoming requests. Is it possibile to make the ELB listen on two ports and, for example, route all the request made to port 80 to a specific set of instances, and ...
1
vote
1answer
525 views
Elastic Load Balancer + Domain setup
How do I assign the ELB (Elastic Load Balancer) to my domain. Do I need to do it for the main domain (ie. domain.com) or sub domain (www.domain.com). My registrar is godaddy - how I do it? - What's ...
4
votes
2answers
932 views
ow to allow elastic load balancer through port 80 in security groups
How to allow elastic load balancer through port 80 in security groups. I want to temporarily block port 80 for the outside world, but want the load balancer to pass through the firewall (via security ...
2
votes
2answers
310 views
ELB Alternatives for AWS when transferring large amount of data
So I got a unique problem. Our app is designed to server large amount of files using a special link that is one time use. We have been playing with ELB but notice an interesting "bug", if you start ...
3
votes
1answer
245 views
Load Balancers w/ Name-based Virtual Hosts
Are there any issues using Amazon's Elastic Load Balancer to forward requests to multiple EC2 instances that use name-based virtual hosting? In other words, is the HTTP header forwarded properly so ...
0
votes
1answer
468 views
Working of Amazon Elastic Load Balancers
I've a Amazon ELB behind which there are 3 EC2 instances distributed across 3 zones.
Following are extracts of access logs on each instances:
1st instance(Zone A):
10.210.214.231 - - ...
1
vote
1answer
426 views
403 forbidden error going through aws load balancer
I am running a IIS 7 Server behind an aws load balancer. I am using a Verisign SSL certificate which is installed properly but whenever I put in the URL, or the DNS name of the load balancer I get a ...
0
votes
1answer
125 views
How can I iterate through each ec2 instance attached to a specific load balancer in bash?
I have this bash line that gives me the IPs of the EC2 instances attached.
export LB_NAME='lb'
ec2-describe-instances `elb-describe-instance-health $LB_NAME --show-long | cut -d , -f 2` | grep ...
0
votes
2answers
391 views
How to architect my application on AWS cloud?
I am plannig to port an e-exam app on the aws cloud. I have decided to use a ELB, EC2 instances. But i am confused on wether to use a MYSQL DB server on amazon instance or to go for amazon RDS?
Also ...
1
vote
2answers
1k views
What does the ELB do to determine the health of an instance?
What specificaly is involved in an Elastic Load Balancer health check on an instance?
I know that it performas an HTTP(S) "ping"; does it just deem an instance "Unhealthy" if that HTTP request ...
0
votes
2answers
552 views
How do I move an Amazon micro instance to a small instance?
I want to move my instance to a micro instance to a small instance but when I try to launch a new AMI based on my Micro instance AMI it only gives me the option for 64 bit instances.
My initial ami ...
16
votes
3answers
6k views
How can I deploy a scalable, reliable haproxy cluster on Amazon EC2?
We need some more advanced functionality than ELB provides (mostly L7 inspection), but it's not obvious how to handle things like heartbeat and high availability with something like haproxy using EC2. ...
2
votes
2answers
1k views
Why do we get TCP disconnects when using AWS Elastic Load Balancer?
We are running our servers on AWS EC2 instances. The servers have to provide HTTP on port 80 and RTMP (TCP) on port 1935.
Running a single instance works fine. But as soon as I use Elastic Load ...
2
votes
4answers
813 views
what is the experience with the load balancing service offered by amazon?
We are currently using mod_jk and apache to load balance our tomcat servers. We would like to know what is the experience and comparison with the amazon AWS load balancer.
