Thursday, 8 August 2013

Eucalyptus 3.3 Tutorials- Creating Autoscaling Group

Eucalyptus 3.3 Tutorials
Creating Autoscaling Groups

In this set of tutorials, we are going have a look at the steps required to configure an Autoscaling Group

Autoscaling Groups

This contains the information about the instances that will be actually be used for scaling operations.
The Auto Scaling group defines the minimum, desired (optional), and maximum number of instances that you will use to scale your application in times of varying workloads.

NOTE: Few scenarios may require a "desired" number on instances to be running in an autoscaling group, irrespective of the minimum and maximum instances defined. If in case you do not mention the desired count, then the default value is considered to be same as the minimum instance count.

To get started, we first need to create our Autoscaling Group. For that, we use the "euscale-create-auto-scaling-group" command as shown below:

NOTE: Before you begin configuring an autoscaling group, you need to have configured a Launch Configuration as described in the earlier tutorial.


euscale-create-auto-scaling-group <AUTOSCALEGROUP> 
                                    --launch-configuration <LAUNCHCONFIG>
                                    --availability-zone <AVAIL_ZONE>
                                    --min-size <VALUE>

                                    --max-size <VALUE>
                                    --desired-capacity <VALUE>

This is the basic syntax that will get you Auto Scaling Group up and running. You can optionally provide additional parameters as you see fit.


euscale-create-auto-scaling-group MyAutoScalingGroup \
                                    --launch-configuration MyLaunchConfig \
                                    --availability-zones CLUSTER01 \
min-size 1 \  
                                    --max-size 5 \
                                    --desired-capacity 2 

NOTE: In this code, we have set our desired capacity to 2. This statement will immediately launch 2 instances in the availability zone that you have specified irrespective of the min-size parameter. If you do not specify the desired capacity, then a single instance (since value of --min-size 1) will be launched in the specified availability zone.

Once done, you will be provided with an output similar to the image shown above. With this, your Autoscaling Group is now ready.

Few additional commands related to Autoscaling Groups:

For describing Autoscaling Group
euscale-describe-auto-scaling-group <AutoScalingGroupName>

For deleting Autoscaling Group
euscale-delete-auto-scaling-group <AutoscalingGroupName>

For updating Autoscaling Group:
euscale-update-auto-scaling-group <AutoScalingGroupName> 
                                            --min-size <VALUE>            
                                            --max-size <VALUE> 
                                            --desired-capacity <VALUE>

NOTE: You cannot delete an Autoscaling Group while you have instances associated with it in the running state. To delet the instances, you can update your autoscaling Group and set both the minimum and maximum instance size as zero. Once done, the running instances will be terminated and then you can delete the Gruop.
Alternatively, you can also use the "--force-delete" parameter with your euscale-delete-auto-scaling-group command. This will deleted the Autoscaling Group along with all instances associated with it, without waiting for the instances to be terminated.

>> Step 3: Creating Scaling Policies


Heri Wijaya said...

may be useful for all, helpful article once and pardon me permission to share also here

Obat gerd alami
Obat tulang retak
Cara mengobati kista coklat

santhosh k said...

The Blog gave me idea to create the auto scaling group My sincere thanks for sharing this post
AWS Training in BTM Layout || AWS Training in Marathahalli

Nuy Nurhasanah said...

may be useful for all, helpful article once and pardon me permission to share also here Obat nyeri sendi tulang

vanessa Oconnell said...

Your presenting the blog information is so nice. I am able to understood your information and you really provide the needful pretty information about AWS Training In Bangalore

Ngọc Bảo said...

I like your post. It really useful with me. Thanks for sharing these useful information!

Inigo joseph said...

Needed to compose you a very little word to thank you yet again regarding the nice suggestions you’ve contributed here.AWS Training in Bangalore

deepti said...

Excellent post!!!. The strategy you have posted on this technology helped me to get into the next level and had lot of information in it.
No.1 PHP Project Center in Chennai | No.1 PHP Project Center in Velachery

abar selvam said...

Beautiful post..Thank you..Image Processing Projects Center in Chennai | Image Processing Projects Center in Velachery

srihariparu said...

Awesome post. Thanks for sharing such a informative post.
Android Project Center in Chennai | Android Project Center in Velachery

krish said...

Interesting post! This is really helpful for me. I like it! Thanks for sharing! Mini Projects Center in Chennai | Mini Projects Center in Velachery

Careen joseph said...

I simply wanted to write down a quick word to say thanks to you for those wonderful tips and hints you are showing on this site.

keith kristoper said...

Needed to compose you a very little word to thank you yet again regarding the nice suggestions you’ve contributed here.
hadoop training in bangalore

ram chinna said...

This blog information its very useful to read your blog. We provide best Digital Transformation Services

sam said...

Very good informative article. Thanks for sharing such nice article, keep on up dating such good articles.
Austere Technologies | Best Cloud Solution services

massil said...

Thanks for sharing such a nice informative blog.

No.1 APP DEVELOPMENT SERVICES provided in www.massiltechnologies

MASSIL said...

Really very good information with a nice explanation. Thanks for sharing.


sujay said...

Awesome information thanks for sharing
artifical intelligence training in bangalore
aws training in bangalore

AUSTERO said...

Great blog.

Best Mobility Services | Austere Technologies

massil said...

Great explanation and information for Auto scaling Group creation. Thanks for this.


Post a Comment

Note: only a member of this blog may post a comment.