Today Faidon replied on IRC:
...I'm pretty much against moving forward with this unless the simplify
RFChttps://www.mediawiki.org/wiki/Requests_for_comment/Simplify_thumbnail_cachegets implemented...
That RFC was created in 2013-10-07 (5+ months ago), and has not been finalized nor have I found any resources allocated to this project, so it might be a while. Now the question seems to be - would this impact our infrastructure in a significant way without simplify RFC? My calculationshttps://www.mediawiki.org/wiki/Talk:Requests_for_comment/Reducing_image_quality_for_mobile#Impact_on_infrastructure based on Faidon's data suggest that maximum disk usage growth would be 250-500GB extra data size (2.5% growth of the current 20TB), which also equate to 15% increase in the number of files. Hence: 1) are these numbers logical? 2) assuming (1), does 2.5% size growth and 15% number of files growth seem too taxing on our infrastructure to require waiting for simplify RFC technology?
... this is one of the things that as we discussed, we need to plan
ahead in quarterlies etc.; you can't just drop that on us and start experimenting, sorry
This project is following the regular steps - I published it on RFC and posted a proposed code patch. There is no experimentation, only discussion. Even implementing core feature does not increase storage requirement until we have a go ahead from Ops and Mobile and update javascript to use new functionality. Please elaborate what should be the appropriate steps that I might have missed.