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10 views

Layer 7 load balancing on AWS to Auto Scaling Group without use of ELB

We need to do layer 7 load balancing on traffic coming into our VPC destined for EC2 instances within an ASG. The AWS ELB has many limitations such as doing RR balancing at the layer 4 level only. We ...
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votes
1answer
26 views

Static IP address for outgoing traffic from AWS autoscaling group

I'm going to have a number of EC2 instances in an Elastic Beanstalk autoscaling group in a default subnet in a VPC. The app on these EC2 instances needs to connect to a third party service who uses an ...
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0answers
9 views

OpsWorks Auto Healing instances that fail ELB (load balancer) test

From the AWS documentation I understand that some kind of unresponsiveness from an instance will cause it to be terminated. There is nothing in the docs that would suggest that ELB health checks can ...
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0answers
25 views

Available Instance types for marketplace ami's

I based my autoscaling AMI's on the Turnkey Linux nginx AMI from the marketplace. I am now unable to select any of the newer generation instance types; for instance, my autoscaling uses m3.large type ...
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1answer
44 views

How can I level out my auto scaling checks?

So, I have been playing around with my auto scaling config and my Cloudwatch alarms to try and keep all my instances purring but not roaring. I can't seem to get rid of a constant yoyo. CPU usage ...
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0answers
14 views

How can I use ELB load balancing metrics in autoscaling group policy?

How do I configure an auto-scaling policy to work off the latency cloud watch metric of an associated ELB. I have looked at all the example cloud formation scripts and they only work upon metrics from ...
0
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1answer
38 views

Tools for heterogeneous systems and way to start MySQL cluster automatically

I'm trying to auto start of MySQL Cluster. There are several nodes and several distinct processes, and I must start them in the proper order. Firstly, I must start ndb_mgmd on management nodes, ...
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0answers
36 views

AWS Autoscale termination policies

I'm attempting to add an existing EC2 instance to an autoscale group I created as the initial instance. I've set the termination policy to 'NewestInstance' and if I understand correctly, when a new ...
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1answer
118 views

AWS autoscaling. Launch Config/Auto Scaling Group and VPC instance with two ifaces

I want create an Launch Config/Auto Scaling Group to build instances inside an VPC with two subnets ("frontend" and "backend") I need these auto-scaled instances to have an interface in each of ...
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1answer
94 views

How do I create DNS entries for EC2 instances created by Auto Scaling?

I'm looking into using auto scaling groups for a tier of webservers that would be fronted by an ELB. One of the things I'm having a hard time with is how to give each new instance the proper DNS ...
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2answers
339 views

Spot instances frequently terminated in AWS auto scaling group (failing system health check)

We have 2 auto scaling groups (one for on-demand and one for spot instances) which are both set to a static number of instances (min, max, and desired are all the same - 5 in our case). The instances ...
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1answer
43 views

Elect which instance to tear down in Azure

Suppose I want to scale up/down my Azure Cloud Service Programmatically. The scaling up case is easy. But when scaling down, can I control which instance gets torn down? Is this predictable? In my ...
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0answers
17 views

Silencing a CloudWatch alarm when MinServers is not exceeded

We have two CloudWatch alarms used to scale up and down an AutoScaling group based on CPU usage. We also have a minimum of two instances running at a time. This means that when CPU load is low on both ...
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0answers
136 views

AWS Cloudformation Bootstraping with S3 File and Autoscaling

I just started trying to use CloudFormation and am using it for some autoscaling. I am new to all this so bare with me. I am using the sample template for autoscaling found here. ...
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1answer
101 views

m/monit and ec2 autoscaling

I've been using monit for some time and have really liked it thus far. I recently decided to give m/monit a try and the UI looks great and is super informative. My only hang up is monitoring servers ...
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1answer
155 views

How do I autoscale windows servers w/ amazon ec2

I'm building a distributed app which consists of a load balancer, web-server, database server, messaging queue, and backend workers. Workers consume messages off the queue, perform tasks and then ...
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2answers
170 views

The Foreman EC2 Auto Scaling Cleanup

OK, so I have setup in the user-data section of my launch configuration, a way for an instance to automatically register itself with Foreman, and put itself into the correct host group through API ...
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1answer
442 views

AWS EC2 Instance Auto Scaling Confusion

So first off I'm completely new to AWS so bear with me. I have had one instance running for a few months now and I now need to autoscale it as I am getting bigger traffic spikes and it gets ...
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1answer
83 views

AWS Alarms in “ALARM” state not triggering Policy actions

Today I created an AutoScaling Group with several policies, each with an Alarm associated with a CloudWatch metric. The AutoScaling Group launched two instances, because that the minimum that I ...
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1answer
381 views

Can Amazon Elastic Beanstalk auto-scale Amazon RDS?

I'm planning to run a PHP/MySQL application using Amazon Elastic Beanstalk. In the settings I can define when it should launch new instances automatically (Auto-Scaling). However, as I understand ...
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2answers
534 views

EC2 Update my existing AMI

I'm using Elastic Load Balancing to load balance my Auto Scaling Group, for that I have a private AMI that hold my application server (Tomcat) and my web app deployed to it as war ... Now everything ...
0
votes
1answer
112 views

When EC2 instance goes down, how to bring up new machine with existing EBS volume?

We've got an app where customers upload data and documents to a number of EC2 instances. We store the uploads on EBS volumes. Occasionally our app will fail. Sometimes it's something in our app ...
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1answer
195 views

High Availability on Windows Azure Websites

One of my main apps is hosted on Windows Azure's Websites platform. Given Friday's downtime, I realized that I need something that allows my app to stay online if Azure has an outage again. My ...
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1answer
254 views

Cloud formation - updating a stack behind an elb doesnt update the AMI

We are powering our AWS EC2 instances using cloud formation. We have 3 different stacks - testing, staging and production. Our workflow to update the images for any of the stacks is as follows: ...
4
votes
1answer
664 views

How to automatically update nginx upstream server list when aws ec2 hostname changes or increases?

I want to setup autoscaling in AWS. I don't want to use Elastic Load Balancer. Autoscalling in Amazon creates EC2 instances seamlessly during demand spikes to maintain performance, and decreases ...
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1answer
497 views

AWS auto scaling setup bootstrap script and ssh access

I'm not a specialist in networking and I'm struggling at the moment trying to setup auto scaling for a web application. I have one server - we can call it master - (outside the auto scaling group) ...
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1answer
215 views

Is memory usage the main cause of instance churn on Google App Engine? [closed]

I am experiencing sharp drops and spikes in instance count every 30 minutes although the request rate has been stable for 2h at 2.4k RPS. Periodically there are a lot of warmup requests after many ...
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1answer
151 views

Creating auto scale group fails, “Launch configuration name not found”

I'm trying to create an autoscale group on Amazon. The load balancer is created and is up n' running. I've successfully created the launch configuration in eu-west-1 and it shows up when I run ...
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1answer
59 views

Amazon Auto Scaling and IP access control

We hava a project where we have to access a SOAP WS that is access-restricted via IP firewalling. So each one of our machines need to be added to the firewalling rules by our clients' security team. ...
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0answers
139 views

How to configure Cloudwatch and Autoscaling for our setup?

I have a few questions that I can't seem to find the answer to or figure out. I am confused about AS groups with our Websocket services. AFAIK, the groups will terminate a server, and then send the ...
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2answers
37 views

What tooling already exists to scale down Azure Web and Worker roles during off peak times?

Having inherited a large number of Dev, Test, UAT and Integration environments I notice that a very large number of deployments are left idle during evenings and weekends. We have done what we can to ...
0
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0answers
118 views

SVN and NFS architecture

I have linux servers autoscaled and each mounts NFS drive on boot. The NFS is synced using SVN. When i change something in my files the changes only propagate to new servers. I have a lot of traffic ...
0
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1answer
399 views

Approach to auto scale celery servers based on broker(redis) queue size

I am working on a project which requires rolling out new celery servers if the broker(redis) queue is consistently higher than a predetermined threshold size and killing the new boxes when the queue ...
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2answers
61 views

AWS Autoscaling Not Launching Correct Instance

I have an instance in AWS that I set up my entire environment (I'll call it my ready instance) on and is running perfectly. I then created a load balancer (ELB) with an autoscaling policy. When I ...
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1answer
911 views

ELB Instance Out of service

After implementing ELB and Autoscalling on Amazon AWS. There's a wierd issue happens and we don't know either the reason or the fix. We installed Auto Scalling configuration to add instance of AMI ...
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1answer
78 views

Control ELB by Traffic load

We recently used Amazon AWS. Now our application is on the cloud. And we configured ELB with Auto Scalling and it works fine. We need to modify the ELB and control how it works. I checked all the ...
3
votes
1answer
183 views

EC2 Autoscale policy to terminate instances if not needed but before 1 hour

I have setup EC2 Autoscale policies along CPU monitors and it's working well. I have occasional bursts that triggers autoscale and more servers are added. If the servers are experiencing a burst ...
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1answer
119 views

Switching between ondemand and spot instances depending on spot price

We are using EC2 spot instances for crawling data. At any given time we need to have 20 instances running. We are aiming for high availability as well as cost optimization. The scheme we want to ...
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1answer
533 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 ...
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1answer
193 views

Time between AWS Notifying of Scale Down and Terminating instance

Here is the scenario, there are multiple EC2 instances behind a load balancer. When traffic dies down, the SCALE_DOWN policy is triggered from a CloudWatch alarm. What I would like, is for the ...
4
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1answer
930 views

EC2 Auto-Scaling with Spot and On-Demand Instances?

I'm looking to optimize the cost of our auto-scaling EC2 groups by having them launch spot instances instead of on-demand instances. What I really want is to be able to keep some servers in the group ...
2
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2answers
746 views

Auto-scaling EC2 Servers and Updating Code

We've come to the point where we need to set up autoscaling for our web server and I'm unsure how to go about the process of scaling servers and updating the the existing code without remaking a new ...
1
vote
1answer
574 views

Autoscaling EC2 with NFS mounts

I'm trying to set up a shared filesystem on EC2 and I've read tutorials such as this: http://blog.ronaldmccollam.com/2012/07/configuring-nfs-on-ubuntu-in-amazon-ec2.html In step 2 it talks about ...
2
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2answers
135 views

AWS AutoScaling as a robust unit of deployment?

Some of our apps have a requirement that they "work most of the time". They don't the full multi-AZ & ELB treatment for high availability. The irritating thing with EC2 is that, when a single ...
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1answer
457 views

Need a recommendation for shared storage on auto-scaling ec2 w/ scalr

I have come across so many answers to this question that I am completely lost! I am moving our 2 sites to a load balanced ec2 system with scalr as our cloud manager. Now the question is coming up ...
1
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1answer
107 views

Autoscaling EBS volumes

I've had a quick look for metrics in Cloudwatch and couldn't see anything but forgive me if I missed it. I would like to know if it's possible to watch and EBS volume and add more when it is nearing ...
0
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1answer
378 views

Persistent Spot Instance Request with CloudFormation

Is it possible to create "Persistent Spot Instance" with AWS CloudFormation ? I'm going through the Autoscale and EC2 CloudFormation's template references but there is no mention how to set a property ...
3
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2answers
347 views

EC2 - How do you tell the ELB when the machine is “ready”

I have a autoscaling setup with monitoring and all is well. The process for code deployment is now well in hand and basically does this. Create a new launch_config which defines the git commit to ...
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2answers
118 views

EC2 cost-effective webapp scaling

I have a webapp running in a Media Temple VPS account, and I'm currently evaluating the gains to switch to Amazon EC2. It's running under Apache 2 web server. This webapp for now has almost no access ...
2
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1answer
520 views

Bootstrapping in CloudFormation with Autoscale

My CloudFormation template creates an autoscale group and bootstrap it with utility script /opt/aws/bin/cfn-init. When I remove the bootstrap part out of my template the, autoscale get created without ...