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bauwser | telnes: je n'avais pas vu ton ping, mais généralement les effets de type snowball se contournent facilement en mettant un reverse proxy de type HAProxy | 07:58 |
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bauwser | (rapport aux problèmes de charge du caching) | 07:59 |
bauwser | telnes: ca a un terme même, ca s'appelle le dogpile effect | 08:01 |
bauwser | (et d'ailleurs de mémoire, les projets OpenStack sont censés utiliser la lib dogpile.cache qui permet justement de contourner ça) | 08:04 |
bauwser | en faisant des HTTP asynchrones pour le cache miss | 08:04 |
telnes | merci je zieute ca | 08:05 |
bauwser | je viens de vérifier pour nova | 08:07 |
bauwser | on utilise la lib oslo.cache | 08:07 |
bauwser | qui est un wrapper sur dogpile.cache AFAIK | 08:07 |
bauwser | qui justement implemente des patterns pour éviter ce problème | 08:08 |
bauwser | telnes: et oublie mon tout premier ping, le snowball c'est autre chose | 08:08 |
telnes | je vais regarder quand même :D | 08:10 |
telnes | tu as de la doc sur la sécurisation de CDN ? | 08:10 |
telnes | et les vulnérabilité | 08:10 |
bauwser | telnes: bon, je viens d'aller voir le code | 08:12 |
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bauwser | en fait, c'est super récent (Mitaka) qu'on utilise dogpile.cache | 08:14 |
bauwser | avant, Nova tapait directement sur le cache memcache | 08:14 |
telnes | mm ok | 08:15 |
telnes | je lit un papier de 2009 :D http://dipzoom.case.edu/files/documents/cdnSecurity-esorics09.pdf | 08:15 |
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telnes | -t +s | 08:16 |
bauwser | ah mais ça, c'est autre chose :) | 08:17 |
bauwser | telnes: qu'appelle-tu cache ? | 08:17 |
bauwser | (sur OpenStack je veux dire) | 08:18 |
telnes | voila :D | 08:18 |
telnes | swift | 08:18 |
telnes | je pose ma question sur le chan openstack mais c'est pas forcément lié à Opsk | 08:19 |
bauwser | aaaah | 08:19 |
bauwser | je passe alors, pas mon domaine :) | 08:19 |
telnes | pas grave | 08:20 |
bauwser | telnes: intéressant https://openstack.nimeyo.com/50231/openstack-dev-why-doesnt-swift-cache-object-data | 08:22 |
bauwser | (je parle de la réponse de John Dickinson, le PTL (ou ex je sais plus) de Swift) | 08:23 |
telnes | je regarde | 08:24 |
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Jehane | on rapporte où les bugs concernant le site de rdo ? | 13:53 |
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