FYI.
---------- Forwarded message ----------
From: Ben Hartshorne <bhartshorne(a)wikimedia.org>
Date: Mon, Feb 6, 2012 at 10:59 PM
Subject: Re: [Wikitech-l] Deploying Swift for thumbnails next Mon-Thurs Feb 6-9
To: Wikimedia developers <wikitech-l(a)lists.wikimedia.org>
Hi Everyone,
Just to let you know, this deploy started this morning (with a few hiccups)
and Swift is now serving a small percentage of production traffic (about 6
queries per second). As before, please find me in IRC or leave a message
on the SwiftMedia/Issues page if you have bugs to report.
Thanks!
-ben (aka maplebed on IRC)
On Tue, Jan 31, 2012 at 11:43 AM, Ben Hartshorne
<bhartshorne(a)wikimedia.org>wrote:
> Hi Everyone,
>
> Next week we're going to switch the back end system that hosts
> thumbnail[1] images. We have been using ms5<http://ganglia.wikimedia.org/latest/?r=day&cs=&ce=&m=&c=Miscellaneous+pmtpa…>(a Sun server running linux) to serve all thumbnails. We are switching to Openstack
> Swift <http://wikitech.wikimedia.org/view/Swift>, a clustered object
> store. Though we have done testing and expect no problems, I want to
> publicize the change so that if issues do appear, they are quickly directed
> to the right place.
>
> Here's the schedule:
> * Monday Feb 6th: move 0.4% of all thumbnail traffic from ms5 to swift.
> Only thumbnails with "/thumb/a/a2/"[2] in the URL will be affected.
> * Tuesday: move 12.5% of traffic - thumbnails with "/thumb/a/" or
> "/thumb/b/" will be affected
> * Wednesday: move 50% of traffic - thumbnails with "/thumb/(a-f or 0 or
> 1)/" will be affected
> * Thundlay: move 100% of traffic - all thumbnails will be served from Swift
>
> Potential symptoms that might be related to this change on Monday:
> * a thumbnail image with /a/a2/ simply fails to load
> ** try changing the number preceding 'px' to generate a different size
> image[3]
> * you delete an image and the thumbnail is still available
> ** try purging the cache[4] and see if that makes it go away
> ** try changing the number preceding 'px' and see what happens
> * you move an image to a new name and it's still available at the old
> name, when either the new or old name has /a/a2/ in the URL
> ** please provide full URLs for both the new and old names
>
> If any of these things happen, or if something else odd happens with
> images or thumbnails and you feel it might be related, please join
> #wikimedia-tech in IRC and ping me (maplebed) or Aaron (AaronSchulz). If
> neither of us are available or you would prefer to just leave us a message,
> add a note to https://www.mediawiki.org/wiki/SwiftMedia/Issues. :) If
> things are severely broken, you can ask someone in the #wikimedia-tech to
> page me.
>
> Thanks for your help!
>
> -ben
>
> [1] In case you don't know what I mean by thumbnail images, I'm talking
> about all URLs that start http://upload.wikimedia.org/ and have /thumb/
> in the path. When an image is uploaded to a wiki (or commons), Mediawiki
> automatically generates scaled versions of the image. These are what I
> call 'thumbnails'. Nearly every time an image is used in a wiki page it is
> actually a thumbnail being used. Try going to any wiki page with an image,
> right click on the image, and choose 'view image'. You'll get something
> like
> http://upload.wikimedia.org/wikipedia/commons/thumb/4/45/Liberty_Head_Nicke… as the URL (this was taken from enwiki's featured article today)
>
> [2] For example, http://upload.wikimedia.org/wikipedia/commons*
> /thumb/a/a2/*Little_kitten_.jpg/800px-Little_kitten_.jpg [6]
>
> [3] For example,
> http://upload.wikimedia.org/wikipedia/commons/thumb/a/a2/Little_kitten_.jpg/
> *799px*-Little_kitten_.jpg
>
> [4] Find the URL for the main image file (rearrange the URL to find the
> original image - /wikipedia/commons -> commons.wikipedia.org) and add
> "?action=purge" to the end of the URL (eg
> http://commons.wikimedia.org/wiki/File:Little_kitten_.jpg?action=purge
>
> [5] Image in the public domain
>
> [6] cc-by 3.0, Alexanderwdark<http://commons.wikimedia.org/w/index.php?title=User:Alexanderwdark&action=e…>
>
_______________________________________________
Wikitech-l mailing list
Wikitech-l(a)lists.wikimedia.org
https://lists.wikimedia.org/mailman/listinfo/wikitech-l
--
Guillaume Paumier
Technical Communications Manager — Wikimedia Foundation
http://donate.wikimedia.org
cross posting
_____
*Béria Lima*
<http://wikimedia.pt/>(351) 925 171 484
*Imagine um mundo onde é dada a qualquer pessoa a possibilidade de ter
livre acesso ao somatório de todo o conhecimento humano. Ajude-nos a
construir esse sonho. <http://wikimedia.pt/Donativos>*
On 31 January 2012 22:05, Béria Lima <berialima(a)gmail.com> wrote:
> The Wikimedia chapters are seeking to appoint two candidates to sit on the
> Wikimedia Foundation's Board of Trustees for two years, starting 1 July
> 2012. The two new members of the board will help to decide the future
> direction of the world’s leading non-profit website. Wikimedia project are
> constructed by hundreds of thousands of volunteers worldwide, supported by
> a growing number of staff and an international network of chapters. Board
> membership is unpaid.
>
> The chapters wish to appoint two excellent board members and believe this
> can best be achieved by selecting from a large number of varied and skilled
> candidates. Therefore, the chapters call for nominations by everyone who
> believes they or someone they know would be suitable. The chapters ask that
> this call for candidates be distributed as widely as possible through such
> forums as mailing lists, village pumps, and blogs.
>
> The successful candidates will be committed to the Wikimedia mission and
> willing and able to engage constructively with the stakeholders of the
> movement, including the volunteers and the chapters that provide it with
> essential support. The successful candidates will have:
>
> - The ability to provide expertise to the board in its goal of
> implementing a coherent vision on how the projects’ communities, the
> foundation, the chapters, and other affiliated groups work together;
>
>
> - Sensitivity to complex issues surrounding the multiplicity of
> languages, cultures, and jurisdictions served by the foundation’s projects;
>
>
> - Knowledge and understanding of the governance of international
> non-profit organizations, balancing autonomy and subsidiarity;
>
>
> - The ability to think strategically and to work both as part of a
> team and independently;
>
>
> - A good standard of written and oral English (fluency in additional
> language would be well regarded);
>
>
> - Sufficient time to devote to the role of board member, and the
> ability and willingness to travel.
>
> Increasing the geographical diversity of current board membership would be
> an advantage.
>
> The selection process is set out here:http://meta.wikimedia.org/wiki/Chapter-selected_Board_seats
>
> Nominations must be sent to the moderator Béria Lima (Wikimedia Portugal)
> and deputy moderators Milos Rancic (Wikimedia Serbia) and Mardetanha
> (Wikimedia steward from Iran) by 23:59 UTC, 29 February. If you would like
> to nominate yourself or someone else, please see the instructions here:
> https://meta.wikimedia.org/wiki/Chapter-selected_Board_seats/2012/Nominate
>
> *Béria Lima*,
> Moderator
>
