Telefonica, Huawei Push No-Cell 5G Concept
The UCNC architecture uses a new radio access framework that reduces signaling and improves latency.
What’s New in Docker Datacenter with Engine 1.12 – Demo Q&A
Last week we announced the latest release of Docker Datacenter (DDC) with Engine 1.12 integration, which includes Universal Control Plane (UCP) 2.0 and Docker Trusted Registry (DTR) 2.1. Now, IT operations teams can manage and secure their environment more effectively and developers can self-service select from an even more secure image base. Docker Datacenter with Engine 1.12 boasts improvements in orchestration and operations, end to end security (image signing, policy enforcement, mutual TLS encryption for clusters), enables Docker service deployments and includes an enhanced UI. Customers also have backwards compatibility for Swarm 1.x and Compose.
To showcase some of these new features we hosted a webinar where we provided an overview of Docker Datacenter, talked through some of the new features and showed a live demo of solution. Watch the recording of the webinar below:
We hosted a Q&A session at the end of the webinar and have included some of the most common audience questions received.
Audience Q&A
Can I still deploy run and deploy my applications built with a previous Docker Engine version?
Yes. UCP 2.0 automatically sets up and manages a Swarm cluster alongside the native built-in swarm-mode Continue reading
IT Hare: Ultimate DB Heresy: Single Modifying DB Connection. Part I. Performanc
Sergey Ignatchenko continues his excellent book series with a new chapter on databases. This is a guest repost.
The idea of single-write-connection is used extensively in the post, as it's defined elsewhere I asked Sergey for a definition so the article would make a little more sense...
As for single-write-connection - I mean that there is just one app (named "DB Server" in the article) having a single DB connection to the database which is allowed to issue modifying statements (UPDATEs/INSERTs/DELETEs). This allows to achieve several important simplifications - first of all, all fundamentally non-testable concurrency issues (such as missing SELECT FOR UPDATE and deadlocks) are eliminated entirely, second - the whole thing becomes deterministic (which is a significant help to figure out bugs - even simple text logging has been seen to make the system quite debuggable, including post-mortem), and last but not least - this monopoly on updates can be used in quite creative ways to improve performance (in particular, to keep always-coherent app-level cache which can be like 100x-1000x more efficient than going to DB).
After we finished with all the preliminaries, we can now get to the interesting part – implementing our transactional DB and Continue reading
Sponsored Post: Loupe, New York Times, ScaleArc, Aerospike, Scalyr, Gusto, VividCortex, MemSQL, InMemory.Net, Zohocorp
Who's Hiring?
- The New York Times is looking for a Software Engineer for its Delivery/Site Reliability Engineering team. You will also be a part of a team responsible for building the tools that ensure that the various systems at The New York Times continue to operate in a reliable and efficient manner. Some of the tech we use: Go, Ruby, Bash, AWS, GCP, Terraform, Packer, Docker, Kubernetes, Vault, Consul, Jenkins, Drone. Please send resumes to: [email protected]
- IT Security Engineering. At Gusto we are on a mission to create a world where work empowers a better life. As Gusto's IT Security Engineer you'll shape the future of IT security and compliance. We're looking for a strong IT technical lead to manage security audits and write and implement controls. You'll also focus on our employee, network, and endpoint posture. As Gusto's first IT Security Engineer, you will be able to build the security organization with direct impact to protecting PII and ePHI. Read more and apply here.
Fun and Informative Events
- Your event here!
Cool Products and Services
- A note for .NET developers: You know the pain of troubleshooting errors with limited time, limited information, and limited tools. Log management, exception tracking, Continue reading
Worth Reading: The long decline of online freedom
The post Worth Reading: The long decline of online freedom appeared first on 'net work.
What The Evolution of APs and Cloud Means For The Next Generation of Enterprises
By: Phal Nanda, Director Product Line Management When it comes to cloud managed WLAN, it’s intriguing how the various vendors have architected their solutions. Years ago, in the controller-less days, the WLAN market consisted of fat APS that did everything...Generating Documentation for TypeScript Projects
Documentation for JavaScript projects has traditionally been generated via annotations inserted as code comments. While this gets the job done, it seems far from ideal. In this post, I’ll explore how to use TypeScript to generate documentation from source code alone.
CC BY-SA 2.0 image by David Joyner
TypeScript is JavaScript with optional types. Here’s a simple example:
// Sends some data to some analytics endpoint
function sendAnalyticsJS(data) {
if (typeof data.type !== 'string') {
throw new Error('The `type` property is required')
}
navigator.sendBeacon('/beacon', JSON.stringify(data))
}
// Results in run-time error
// The `type` property is required
sendAnalyticsJS({ foo: 'bar' })
The JavaScript code will result in a run-time error. This is fine if the developer catches it early, but it would be better if the developer were warned as the bug was introduced. Here’s the same code written using TypeScript:
// Describe the shape of the data parameter
interface IAnalyticsData {
// Type is required
type: string
// All other fields are fair game
[propName: string]: string
}
// We don’t particularly need the data.type check here since
// the compiler will stamp out the majority of those cases.
function sendAnalytics(data: IAnalyticsData) {
if Continue readingAssessing Managed SD-WAN Services
Consider these factors when evaluating managed software-defined WAN providers.