Scaling and High Availability


Scaling and High Availability

The two 1.6 TB PCIe flash cards included with the OnMetal I/O flavor come unformatted. Use the following steps to configure your flash cards for use as a data disk.Note: OnMetal does not erase disks (system or data disks) when...
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Filed in: Cloud Servers
What is OnMetal?
OnMetal servers are single-tenant, bare metal servers provisioned via the same OpenStack API as our cloud. They can be spun up or down as quickly as VMs to offer the agility of multi-tenant environments with the...
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Filed in: Cloud Servers
Note: This article presents the steps to use if you will be creating an OnMetal Cloud SErver through the Cloud Control Panel inteface. For the parallel steps to use in the API, see Using OnMetal Cloud Servers through API.
OnMetal...
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Filed in: Cloud Servers
A server may be created for a scale-up operation and then be immediately deleted if there is a problem with the load balancer associated with the scaling group. The load balancer problems that can cause this are:
The load...
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Filed in: Auto Scale
You can use Auto Scale and RackConnect for “cloud bursting”: adding cloud servers dynamically in response to demand, and removing them after they are no longer needed. This article provides information about configuring Auto...
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Filed in: Auto Scale
One possibility is that you tried to scale up or down beyond the configured minimum or maximum value. As a result, no servers could be created or destroyed. The error message could also mean that you are trying to set the needed...
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Filed in: Auto Scale
No. The server is removed from the load balancer before the delete command is sent. At present, connections are not drained.
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Filed in: Auto Scale
The maximum is 86400 seconds, equal to 24 hours.
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Filed in: Auto Scale
Zero seconds. We recommend having the group cooldown being around 5 minutes (300 seconds) by default.
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Filed in: Auto Scale
Cooldown timers are built in to the scaling group and the individual scaling policies, so that you can prevent too many servers from being created or deleted too quickly.
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Filed in: Auto Scale
Scheduled policies are triggered at the time they are scheduled. Other policies are triggerd by a webhook and the name or "handle" for each policy is defined by a construct called a webhook, which is a unique URL endpoint you...
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Filed in: Auto Scale
For information on the parameters used with the Auto Scale API, see the Auto Scale Developer's Guide, Create Policies.
For information on the parameters used with the Auto Scale Control Panel, see the Auto Scale User Guide,...
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Filed in: Auto Scale
For information on the parameters used with the Auto Scale API, see the Auto Scale API Developer's Guide, Group Configurations and the Auto Scale API Developer's Guide, Launch Configuration.
For information on the parameters used...
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Filed in: Auto Scale
No. There are no specific rules within Auto Scale for monitoring specific servers. However, you can do this through Monitoring configurations, see the Cloud Monitoring API Developer's Guide for details.
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Filed in: Auto Scale
Yes, however, if you need to scale beyond 25 servers with a cloud load balancer, we recommend creating multiple Auto Scale groups and creating a tree of load balancers.
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Filed in: Auto Scale
There is no maximum number of servers in a scaling group.  However, a scaling group used with a cloud load balancer instance is limited to 50 servers per load balancer group and you may have overall Cloud Servers limits on the...
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Filed in: Auto Scale
Yes. A scaling policy is associated with a specific group. All of the scaled-up servers are managed for health and monitoring in aggregate so they need to be a part of a group.
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Filed in: Auto Scale
Yes. You can add servers later.
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Filed in: Auto Scale
A scaling group is a construct that contains the configuration for creating individual servers, has zero or more servers associated with it, and has one or more associated scaling policies that describe what actions to take when...
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Filed in: Auto Scale
No, Auto Scale supports Next Generation Cloud Servers and Performance Cloud Servers.
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No. Auto Scale does not scale up servers or load balancers in a particular order.
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Yes. A load balancer is not required as part of the launch configuration. However, you do need to configure how your servers get requests.
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Filed in: Auto Scale
No, all the resources must be in the same data center. There is a different Auto Scale endpoint for each data center, and each endpoint orchestrates only within that data center. In the Auto Scale control panel, data centers are...
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Filed in: Auto Scale
No, you must create separate scaling groups for different data centers.
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Filed in: Auto Scale
Auto Scale is service agnostic and API based, so it works well with these services but does not explicitly integrate with them.
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Filed in: Auto Scale
Table of Contents
How an Invalid Load Balancer can Prevent Scaling
How to Delete Scaling Groups with Missing Servers
How the ServiceNet Dependency Can Cause Server Creation to Fail
How to Connect Auto Scale to a Single Cloud...
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Filed in: Auto Scale
Cooldowns enforce a period of time between possible actions. Auto Scale has the following types of cooldowns:
Group Cooldowns
Policy Cooldowns
Note: Cooldowns are mainly relevant to event-based scaling policies because those...
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Filed in: Auto Scale
In the previous section (Creating Scaling Groups), you learned how to set the parameters for scaling policies through scaling group configuration. In this section we will discuss the Auto Scale current policy options and how...
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Filed in: Auto Scale
About the Auto Scale Control Panel
Create a Scaling Group
In the preceding section (Concepts), we reviewed what Auto Scale does and the core concepts that drive it. In this section we will discuss how to set the parameters for...
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Filed in: Auto Scale
Servers
Scaling Groups
Cooldowns
Scaling Policies
Load Balancers
In the Introduction to Rackspace Auto Scale, we reviewed an outline of what you can do with Auto Scale and what is required for its setup. In this section we will...
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Filed in: Auto Scale
Welcome to Rackspace Auto Scale - the easy way to scale your cloud resources up or down in response to an increase or decrease in overall workload and based on your defined thresholds.
What You Will Learn in this Guide
What You...
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Filed in: Auto Scale
Rackspace Auto Scale automatically scales resources that are allocated to your application up or down based on user-defined need. Scaling events can be based on scaling rules that you define through your monitoring system, or on...
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Filed in: Auto Scale
Agent
A monitoring daemon that resides on the server being monitored. The agent gathers metrics based on agent checks and pushes them to Cloud Monitoring.
Agent token
An authentication token used to identify the agent when it...
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Filed in: Auto Scale
Pricing Questions
How much does the Rackspace Auto Scale service cost?
How do I know what actions are taken by Auto Scale on my behalf?

Basics and Third Party Questions
What do I need to get started using Auto Scale?
Is...
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Rackspace Cloud Servers has introduced a new architecture for Linux and Microsoft Windows servers called Performance Cloud Servers. This article describes some of the major features and benefits that this new offering provides:...
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Filed in: Cloud Servers
The following permissions matrix displays specific permissions for the roles in Auto Scale. The matrix displays the method names, their corresponding RESTful API commands, and the roles that are supported.
API Documentation...
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A Closer Look at Ecommerce Reference Architectures
Mahesh Gandhe, Sr. Solutions Manager for Ecommerce and SaaS/ISVR.J. Rowntree, Commerce Channel Manager John Engates, Chief Technology Officer
Abstract
Magento offers flexible,...
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CUSTOMER’S BUSINESS: LoveSac is a fast-growing multi-channel retailer that sells unique furniture products.
CHALLENGES: In order to grow LoveSac’s online sales, the company needed to evaluate and upgrade their current ecommerce...
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Filed in: Cloud Hosting
Executive Summary
The pressure to keep vital applications online and performing well is extreme. The stakes are high; application downtime means loss of revenue, and application slowdown means loss of customers.
At the same time...
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Filed in: Cloud Hosting
Spire Empowers Regional Grocers with Consumer Analytics
CUSTOMER’S BUSINESS: Spire, LLC delivers buyer behavior insights and product recommendations to regional grocery chains.
CHALLENGES: Spire’s founders knew the company would...
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Author: Joseph Palumbo, Cloud Usability Team Leader
INTRODUCTION
While consumers are thinking about which gifts to buy their friends and family, businesses are crossing their fingers hoping that their web platform will survive...
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Filed in: Cloud Hosting
Rackspace® Private Cloud, Powered by OpenStack®, Helps Reduce Costs and Improve Operational Efficiency
1. Introduction
Rackspace® Enterprise Business Intelligence group (EBI) is a central team that aggregates, manages and...
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Our environment is designed to scale from small to large volumes of traffic, but since you know your business best we ask that you update us on extra-large volume, high traffic events (HTE). For an idea of what to expect you can...
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Filed in: Cloud Sites
CUSTOMER’S BUSINESS: Behance is the world’s leading online platform for showcasing and discoveringcreative work.
CHALLENGES: Behance needed a hybrid infrastructure that could keep pace with its rapid growth.
RACKSPACE® SOLUTION:...
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Filed in: RackConnect
When you evaluate the security requirements of an application, the sensitivity of information that is being stored, processed, or transmitted by the application is important. Personally Identifiable Information (PII)  must be...
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Filed in: Cloud Hosting
What is SSL Termination?
SSL Termination is a new feature available for Cloud Load Balancers that allows for the termination of secure traffic at the load balancer once the load balancer is configured for it.  Without this...
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Load Balancing

Rackspace Cloud Servers has introduced a new architecture for Linux and Microsoft Windows servers called Performance Cloud Servers. This article describes some of the major features and benefits that this new offering provides:...
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Server Management

Rackspace Cloud Servers has introduced a new architecture for Linux and Microsoft Windows servers called Performance Cloud Servers. This article describes some of the major features and benefits that this new offering provides:...
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Resizing

Rackspace Cloud Servers has introduced a new architecture for Linux and Microsoft Windows servers called Performance Cloud Servers. This article describes some of the major features and benefits that this new offering provides:...
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Filed in: Cloud Servers

Backups

Rackspace Cloud Servers has introduced a new architecture for Linux and Microsoft Windows servers called Performance Cloud Servers. This article describes some of the major features and benefits that this new offering provides:...
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Filed in: Cloud Servers

Server Images

Rackspace Cloud Servers has introduced a new architecture for Linux and Microsoft Windows servers called Performance Cloud Servers. This article describes some of the major features and benefits that this new offering provides:...
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Migrations

Rackspace Cloud Servers has introduced a new architecture for Linux and Microsoft Windows servers called Performance Cloud Servers. This article describes some of the major features and benefits that this new offering provides:...
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Performance

Rackspace Cloud Servers has introduced a new architecture for Linux and Microsoft Windows servers called Performance Cloud Servers. This article describes some of the major features and benefits that this new offering provides:...
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Filed in: Cloud Servers

API

Rackspace Cloud Servers has introduced a new architecture for Linux and Microsoft Windows servers called Performance Cloud Servers. This article describes some of the major features and benefits that this new offering provides:...
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Filed in: Cloud Servers

Web Servers

Author: Joseph Palumbo, Cloud Usability Team Leader
INTRODUCTION
While consumers are thinking about which gifts to buy their friends and family, businesses are crossing their fingers hoping that their web platform will survive...
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Filed in: Cloud Hosting

Uncategorized

When you evaluate the security requirements of an application, the sensitivity of information that is being stored, processed, or transmitted by the application is important. Personally Identifiable Information (PII)  must be...
0 Comments
Filed in: Cloud Hosting

SSL

What is SSL Termination?
SSL Termination is a new feature available for Cloud Load Balancers that allows for the termination of secure traffic at the load balancer once the load balancer is configured for it.  Without this...
8 Comments