Friday, 2016-04-15

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bauwsertelnes: je n'avais pas vu ton ping, mais généralement les effets de type snowball se contournent facilement en mettant un reverse proxy de type HAProxy07:58
bauwser(rapport aux problèmes de charge du caching)07:59
bauwsertelnes: ca a un terme même, ca s'appelle le dogpile effect08:01
bauwser(et d'ailleurs de mémoire, les projets OpenStack sont censés utiliser la lib dogpile.cache qui permet justement de contourner ça)08:04
bauwseren faisant des HTTP asynchrones pour le cache miss08:04
telnesmerci je zieute ca08:05
bauwserje viens de vérifier pour nova08:07
bauwseron utilise la lib oslo.cache08:07
bauwserqui est un wrapper sur dogpile.cache AFAIK08:07
bauwserqui justement implemente des patterns pour éviter ce problème08:08
bauwsertelnes: et oublie mon tout premier ping, le snowball c'est autre chose08:08
telnesje vais regarder quand même :D08:10
telnestu as de la doc sur la sécurisation de CDN ?08:10
telneset les vulnérabilité08:10
bauwsertelnes: bon, je viens d'aller voir le code08:12
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bauwseren fait, c'est super récent (Mitaka) qu'on utilise dogpile.cache08:14
bauwseravant, Nova tapait directement sur le cache memcache08:14
telnesmm ok08:15
telnesje lit un papier de 2009 :D http://dipzoom.case.edu/files/documents/cdnSecurity-esorics09.pdf08:15
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telnes -t +s08:16
bauwserah mais ça, c'est autre chose :)08:17
bauwsertelnes: qu'appelle-tu cache ?08:17
bauwser(sur OpenStack je veux dire)08:18
telnesvoila :D08:18
telnesswift08:18
telnesje pose ma question sur le chan openstack mais c'est pas forcément lié à Opsk08:19
bauwseraaaah08:19
bauwserje passe alors, pas mon domaine :)08:19
telnespas grave08:20
bauwsertelnes: intéressant https://openstack.nimeyo.com/50231/openstack-dev-why-doesnt-swift-cache-object-data08:22
bauwser(je parle de la réponse de John Dickinson, le PTL (ou ex je sais plus) de Swift)08:23
telnesje regarde08:24
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Jehaneon rapporte où les bugs concernant le site de rdo ?13:53
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