November/December 2018 issue of acmqueue The November/December issue of acmqueue is out now

Subscribers and ACM Professional members login here



Web Services

  Download PDF version of this article PDF

Error 526 Ray ID: 4ab56a47991891ac • 2019-02-19 02:48:33 UTC

Invalid SSL certificate

You

Browser

Working
Newark

Cloudflare

Working
deliverybot.acm.org

Host

Error

What happened?

The origin web server does not have a valid SSL certificate.

What can I do?

If you're a visitor of this website:

Please try again in a few minutes.

If you're the owner of this website:

The SSL certificate presented by the server did not pass validation. This could indicate an expired SSL certificate or a certificate that does not include the requested domain name. Please contact your hosting provider to ensure that an up-to-date and valid SSL certificate issued by a Certificate Authority is configured for this domain name on the origin server. Additional troubleshooting information here.

acmqueue

Originally published in Queue vol. 16, no. 6
see this item in the ACM Digital Library


Tweet


Related:

Silvia Esparrachiari, Tanya Reilly, Ashleigh Rentz - Tracking and Controlling Microservice Dependencies
Dependency management is a crucial part of system and software design.


Diptanu Gon Choudhury, Timothy Perrett - Designing Cluster Schedulers for Internet-Scale Services
Embracing failures for improving availability


Štěpán Davidovič, Betsy Beyer - Canary Analysis Service
Automated canarying quickens development, improves production safety, and helps prevent outages.


Benjamin Treynor Sloss, Mike Dahlin, Vivek Rau, Betsy Beyer - The Calculus of Service Availability
You're only as available as the sum of your dependencies.



Comments

(newest first)

Niek Sanders | Mon, 18 Feb 2019 14:44:14 UTC

With respect to the drop overload technique, it is worth reading the paper "Overload Control for Scaling WeChat Microservices" by Zhou et al (esp. Sect 3).

An interesting take-away is that doing uncorrelated load shedding in services leads to throughput collapse if top-level requests need successful responses from all shedding services in order to complete.


Leave this field empty

Post a Comment:







© 2018 ACM, Inc. All Rights Reserved.