AWS Elastic Load Balancer (ELB) is a load balancer service that automatically distributes incoming application traffic across multiple Amazon EC2 instances. Ever since AWS was launched, it has some basic standard features like High Availability, Elasticity, Security, Auto Scaling Support, etc.
AWS ELB has become the de facto and most used standard load balancer for CMS, e-commerce and web portal applications. Amazon is adding more and more features to make the ELB as a standard Load balancer service in AWS. Over the last six months, Amazon has added some great new features to ELB, which makes it even more powerful.
Here are some of the best new features recently added in AWS ELB. These features help users to manage their application and ELB in a better way.
Cross-Zone Load Balancing
Before Cross-Zone Load Balancing, ELB used to rely on DNS to distribute the traffic from clients to the Availability Zones and then to the back-end instances. Because of this, users might see some instances receiving a higher amount of inbound requests than others, while they were caching DNS information. In addition, ELB distributes the traffic evenly to the Availability Zones and this could result in the service disruption or performance degradation when a user runs a few instances in one zone than the other.
If you enable cross-zone load balancing, you no longer have to worry about the clients caching DNS information and equal instances in each Availability Zone. ELB ensures that requests are distributed to the back-end instances equally regardless of which zones the instances were located.
When you deregister an instance manually or via Auto Scaling, it stops sending any new request to that instance and existing connections in that instance will be lost and users will experience an abrupt behavior. To address this issue, ELB has added a new feature called Connection Draining.
Connection Draining is the process of serving the existing connections on a deregistered instance for the duration of the configured timeout. When an Instance is removed from the ELB for maintenance, termination or etc, it will not allow any new requests to the instance. With this feature, end users will not see any abrupt behavior while deregistering an instance from the ELB.
ELB Access Logs
Till now, ELB is a black box and ELB logs were inaccessible to analyze and diagnose the issues at ELB level or back-end instances. So, to debug any issue you need to contact the Amazon support.
Recently, Amazon has introduced the ELB Access Logs, that allow users to store in S3 buckets. Furthermore, users can process those Logs using some standard third-party tools like Splunk Storm, Logstash and Sumo Logic or you can write your own log parser as well. As you store the data in S3 bucket, users can apply the retention policies to the S3 bucket to clean the ELB logs depending on their requirements. These logs help a user to understand the request-response between users to ELB to Instances, debug, analyze and diagnose the issues at instance level, zone Level, and in fact at ELB Level.
ELB DNS Failover with Route 53
Route53 supports ELB DNS Failover. With this feature, users can create multiple record sets for the same domain from multiple regions with different ELBs. While creating the record set, use Alias: Yes, Routing Policy: Failover/Latency and Evaluate Target Health: Yes. This brings the high availability of application with ELB support.
ELB Security Enhancements
Security and Privacy is everyone’s priority and it is becoming extremely important to manage secure communication for your applications. ELB is already having an SSL termination and ELB Security Policy. Along with this, ELB recently added the 3 more new security enhancements: Perfect Forward Secrecy, Server Order Preference, and new predefined security policy, in order to enhance the ELB security of the application traffic.
New Content: Azure DP-100 Certification, Alibaba Cloud Certified Associate Prep, 13 Security Labs, and Much More
This past month our Content Team served up a heaping spoonful of new and updated content. Not only did our experts release the brand new Azure DP-100 Certification Learning Path, but they also created 18 new hands-on labs — and so much more! New content on Cloud Academy At any time, y...
AWS Certification Practice Exam: What to Expect from Test Questions
If you’re building applications on the AWS cloud or looking to get started in cloud computing, certification is a way to build deep knowledge in key services unique to the AWS platform. AWS currently offers 12 certifications that cover major cloud roles including Solutions Architect, De...
Overcoming Unprecedented Business Challenges with AWS
From auto-scaling applications with high availability to video conferencing that’s used by everyone, every day — cloud technology has never been more popular or in-demand. But what does this mean for experienced cloud professionals and the challenges they face as they carve out a new p...
Constant Content: Cloud Academy’s Q3 2020 Roadmap
Hello — Andy Larkin here, VP of Content at Cloud Academy. I am pleased to release our roadmap for the next three months of 2020 — August through October. Let me walk you through the content we have planned for you and how this content can help you gain skills, get certified, and...
New Content: Alibaba, Azure AZ-303 and AZ-304, Site Reliability Engineering (SRE) Foundation, Python 3 Programming, 16 Hands-on Labs, and Much More
This month our Content Team did an amazing job at publishing and updating a ton of new content. Not only did our experts release the brand new AZ-303 and AZ-304 Certification Learning Paths, but they also created 16 new hands-on labs — and so much more! New content on Cloud Academy At...
Blog Digest: Which Certifications Should I Get?, The 12 Microsoft Azure Certifications, 6 Ways to Prevent a Data Breach, and More
This month, we were excited to announce that Cloud Academy was recognized in the G2 Summer 2020 reports! These reports highlight the top-rated solutions in the industry, as chosen by the source that matters most: customers. We're grateful to have been nominated as a High Performer in se...
Which Certifications Should I Get?
The old AWS slogan, “Cloud is the new normal” is indeed a reality today. Really, cloud has been the new normal for a while now and getting credentials has become an increasingly effective way to quickly showcase your abilities to recruiters and companies. With all that in mind, the s...
New Content: AWS, Azure, Typescript, Java, Docker, 13 New Labs, and Much More
This month, our Content Team released a whopping 13 new labs in real cloud environments! If you haven't tried out our labs, you might not understand why we think that number is so impressive. Our labs are not “simulated” experiences — they are real cloud environments using accounts on A...
Kickstart Your Tech Training With a Free Week on Cloud Academy
Are you looking to make a jump in your technical career? Want to get trained or certified on AWS, Azure, Google Cloud Platform, DevOps, Kubernetes, Python, or another in-demand skill? Then you'll want to mark your calendar. Starting Monday, June 22 at 12:00 a.m. PDT (3:00 a.m. EDT), ...
New Content: AZ-500 and AZ-400 Updates, 3 Google Professional Exam Preps, Practical ML Learning Path, C# Programming, and More
This month, our Content Team released tons of new content and labs in real cloud environments. Not only that, but we introduced our very first highly interactive "Office Hours" webinar. This webinar, Acing the AWS Solutions Architect Associate Certification, started with a quick overvie...
Azure vs. AWS: Which Certification Provides the Brighter Future?
More and more companies are using cloud services, prompting more and more people to switch their current IT position to something cloud-related. The problem is most people only have that much time after work to learn new technologies, and there are plenty of cloud services that you can ...
Blog Digest: 5 Reasons to Get AWS Certified, OWASP Top 10, Getting Started with VPCs, Top 10 Soft Skills, and More
Thank you for being a valued member of our community! We recently sent out a short survey to understand what type of content you would like us to add to Cloud Academy, and we want to thank everyone who gave us their input. If you would like to complete the survey, it's not too late. It ...