Skip to main content
  1. Blog
  2. Article

Canonical
30 July 2019

Canonical Design Blog: Amazon EC2 On-Demand Hibernation for Ubuntu 18.04 LTS now available

AWS and Canonical today announce the public release of Amazon EC2 Hibernation support for Ubuntu 18.04 LTS, as part of the efforts to continuously optimise Ubuntu on AWS. Amazon EC2 Hibernation gives you the ability to launch Amazon EC2 instances, set them up as desired, hibernate them, and then quickly bring them back to life when you need them. Applications pick up exactly where they left off instead of rebuilding their memory footprint. Using hibernate, you can maintain a fleet of pre-warmed instances that can get to a productive state faster, and you can do this without modifying your existing applications. The necessary software updates are available in Ubuntu 18.04 LTS AWS Machine Images (AMIs) with a serial of 20190722.1 or later. Support for other Ubuntu releases is in progress. Once you've learned about Amazon EC2 hibernation, you can enable hibernation for your Amazon EC2 instances using the Amazon EC2 Hibernation user guide. Limitations: There is a known issue when using Amazon EC2 Hibernation related to KASLR (Kernel Address Space Layout Randomisation). KASLR is a standard Linux kernel security feature which helps to mitigate exposure to and ramifications of yet-undiscovered memory access vulnerabilities by randomising the base address value of the kernel. In a small percentage of tests, instances with KASLR enabled do not resume and become completely unusable after hibernation. Disabling KASLR, which is enabled by default, is known to avoid this issue. Please see bug lp:1837469 for additional details.

Related posts

Network disaggregation in telecommunication transport networks

Telecommunications networks have traditionally been built from tightly integrated systems. A router vendor supplies the forwarding hardware, network operating system (NOS),...

Benjamin Ryzman

Bring Zenoh to ROS 2 with snaps

ROS 2 gives robotics developers the freedom to choose the middleware that fits their system. As a communication protocol for ROS, Zenoh has gained strong traction. It delivers...

gbeuzeboc

Canonical and CIX Technology announce strategic collaboration for edge innovation

Canonical, the publisher of Ubuntu, and CIX Technology, a semiconductor innovator, today announced a strategic collaboration to deliver an optimized Ubuntu experience on CIX...

Jonathan Mok

What the Cyber Resilience Act (CRA) means for Android™ development

The CRA starts now: 24 hours to respond Picture this: a critical Android vulnerability is reportedly being exploited. Based on initial analysis, the compromised component is...

Bertrand Boisseau