Services November 2016

services@lists.wikimedia.org

3 participants
2 discussions

Re: [Services] [Analytics-internal] Kafka Tier 1 or Tier 2
by Andrew Otto 18 Nov '16

18 Nov '16

Event bus service does not use analytics Kafka though. I would argue that analytics Kafka is tier 1 > On Nov 18, 2016, at 12:12, Gabriel Wicke <gwicke(a)wikimedia.org> wrote: > > EventBus is definitely tier-1. It provides a communication backbone that is used for reliable event processing. Delays in update processing cause directly user-visible issues like outdated information, performance regressions in VisualEditor & other use cases, and unavailability of public event streams. Timely processing of events like revision deletions is security-relevant. > >> On Fri, Nov 18, 2016 at 9:07 AM, Nuria Ruiz <nuria(a)wikimedia.org> wrote: >> Team: >> >> (services cc-ed) >> >> We need to define whether kafka on the analytics cluster is a tier-1 or tier-2 system in order to decide the level of support. At this time an issue with a kafka host pages the whole ops team and I am not sure whether this is needed. >> >> From the standpoint of 'anything' analytics kafka is a tier-2 piece on infrastructure (https://wikitech.wikimedia.org/wiki/Analytics/Tier2). I am not sure as to the EventBus use cases ,though. Can the services team detail the use cases for EventBus that would make it tier-1? >> >> I want to make sure we are all in the same page when it comes to define something as tier-1: tier-1 means that is as important as the database or varnish or any of the core pieces of infrastructure that allow us to operate. Powering a feature that users use, like, say, a part of the Android application doesn't make a service tier-1, it just makes it user-facing. That does not necessarily imply that it needs 24/7 support. >> >> Could services team let us know as to the clients of Event Bus as of now that would make it a tier-1 service? >> >> Thanks, >> >> Nuria >> >> >> >> >> > > > > -- > Gabriel Wicke > Principal Engineer, Wikimedia Foundation > _______________________________________________ > Analytics-internal mailing list > Analytics-internal(a)lists.wikimedia.org > https://lists.wikimedia.org/mailman/listinfo/analytics-internal

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Deployments resume from tin
by Marko Obrovac 01 Nov '16

01 Nov '16

Hello, Just a short FYI to let you know that tin.eqiad.wmnet has been reimaged and is now fully working. That means that the transition period of deploying from mira is over. You should had on to tin for all deployments from now on. I have updated the relevant Scap configuration files in the deployment repos, so no particular action is needed on your part. Cheers, Marko -- Marko Obrovac, PhD Senior Services Engineer Wikimedia Foundation

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Services November 2016