Tag: Amazon CloudWatch

As part of a new, monthly hands on series of webinars, I’ll be giving a technical review of building, managing and maintaining high availability websites and web applications using Amazons cloud computing platform. Hosting websites and web applications is a very common use of our services, and in this webinar we’ll take a hands-on approach […]

The Amazon CloudWatch team has put together a really impressive set of new features. Too many, in fact, to fit on this page. I’ve written a series of posts with all of the information. Here’s a summary, with links to each post: Basic Monitoring of Amazon EC2 instances at 5-minute intervals at no additional charge. […]

You can now use Amazon CloudWatch to monitor your EC2 instances at no additional charge. CPU load, disk I/O, and network I/O metrics are collected at five minute intervals and stored for two weeks. We call this Basic Monitoring. You can also choose more Detailed Monitoring (one minute intervals) at a cost of $0.015 / […]

Auto Scaling can now take advantage of the instance health information collected by the associated Elastic Load Balancer. Specifically, once a load balancer determines that an instance is unhealthy (using the health checks that were established when the load balancer was created), Auto Scaling can be instructed to terminate the unhealthy instances and to launch […]

The new CloudWatch Alarms feature allows you to watch CloudWatch metrics and to receive notifications when the metrics fall outside of the levels (high or low thresholds) that you configure. You can attach multiple Alarms to each metric and each one can have multiple actions. Here’s how they relate to each other: A CloudWatch Alarm […]

The development team likes to call this feature the “Big Red Button.” You can use CloudWatch’s Auto Scaling feature to scale your EC2 capacity up and down according to conditions that you define. You do this by creating an AutoScaling Group and attaching a trigger to it. A trigger uses CloudWatch Alarms to reference a […]

Perhaps you expect a lot of traffic as part of a planned announcement and you want to increase the size of your EC2 fleet just ahead of your press release. Maybe your site is busy once a day because you have a daily deal or a daily special, or only on weekends when people are […]

The new release of Auto Scaling gives you better control over the policies used to modify the number of EC2 instances running in one of your AutoScaling groups. Auto Scaling now emits metrics for each AutoScalingGroup. You can use CloudWatch to monitor your group size, instances being launched and terminated, and other group activity. Policies […]