{"id":8262,"date":"2019-12-06T09:55:22","date_gmt":"2019-12-06T08:55:22","guid":{"rendered":"https:\/\/wp_listic_old.lamp2020.local\/?p=8262"},"modified":"2020-12-07T17:50:55","modified_gmt":"2020-12-07T16:50:55","slug":"13-decembre-2019-seminaire-replication-de-donnees-dans-les-systemes-distribues-a-grande-echelle","status":"publish","type":"post","link":"https:\/\/www.univ-smb.fr\/listic\/archive-actualites\/13-decembre-2019-seminaire-replication-de-donnees-dans-les-systemes-distribues-a-grande-echelle\/","title":{"rendered":"13 D\u00e9cembre 2019 : s\u00e9minaire r\u00e9plication de donn\u00e9es dans les syst\u00e8mes distribu\u00e9s \u00e0 grande \u00e9chelle"},"content":{"rendered":"<p><strong>Intervenant :<\/strong> S\u00e9bastien Monnet<\/p>\n<p>La r\u00e9plication de donn\u00e9es est un m\u00e9canisme cl\u00e9 pour construire des syst\u00e8mes de gestion de donn\u00e9es fiables et efficaces. En conservant plusieurs copies pour chaque donn\u00e9e, il est possible d\u2019am\u00e9liorer la durabilit\u00e9 des donn\u00e9es et\/ou les performances d\u2019acc\u00e8s \u00e0 ces donn\u00e9es. Cependant, avoir plusieurs copies d\u2019une m\u00eame donn\u00e9e peut engendrer des probl\u00e8mes de coh\u00e9rence en cas de mises-\u00e0-jour. Dans ce s\u00e9minaire, nous pr\u00e9senterons un aper\u00e7u des principaux probl\u00e8mes auxquels on doit s\u2019attaquer lorsque que l\u2019on con\u00e7oit un syst\u00e8me de gestion de donn\u00e9es distribu\u00e9. Nous aborderons ensuite des contributions dans le domaine de la tol\u00e9rance aux fautes (durabilit\u00e9 et disponibilit\u00e9 des donn\u00e9es) et de la performance (placement des copies des donn\u00e9es). Enfin, nous ferons un zoom sur des travaux en cours : le placement des donn\u00e9es au sein de syst\u00e8mes de gestion de donn\u00e9es offrant plusieurs niveaux de coh\u00e9rence de donn\u00e9es.<\/p>\n<p><strong>Date<\/strong> <strong>:<\/strong> 13\/12\/2019 \u00e0 14h00<\/p>\n<p><strong>Lieu :<\/strong> Annecy \u2014 LAPP \u2014 Auditorium Marcel Vivargent<\/p>\n<p><span class=\"\"><a class=\"\" href=\"https:\/\/indico.in2p3.fr\/event\/19845\/\">https:\/\/indico.in2p3.fr\/event\/19845\/<\/a><\/span><\/p>\n<p><span class=\"\"> Data replication in large-scale distributed systems by S\u00e9bastien Monnet<br class=\"\" \/>\u00a0<br class=\"\" \/>Data replication is a key mechanism for building a reliable and efficient data management system. Indeed, by keeping several replicas for each piece of data, it is possible to improve data durability and\/or access performance. However, having multiple copies of a single piece of data may induce data consistency issues when the data is updated. In this presentation, we will present an overview of the main problems that need to be tackled while designing a distributed storage system. We will then introduce several contributions in the area of fault tol\u00e9rance (data durability\/availability) and performance (data placement). Finally, we will focus on our current research topic: data placement in data management systems offering multiple data-consistency levels.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Intervenant : S\u00e9bastien Monnet La r\u00e9plication de donn\u00e9es est un m\u00e9canisme cl\u00e9 pour construire des syst\u00e8mes de gestion de donn\u00e9es fiables et efficaces. En conservant plusieurs copies pour chaque donn\u00e9e, il est possible d\u2019am\u00e9liorer la [&hellip;]<\/p>\n","protected":false},"author":129,"featured_media":8265,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"none","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[19],"tags":[],"class_list":["post-8262","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-archive-actualites"],"acf":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/www.univ-smb.fr\/listic\/wp-content\/uploads\/sites\/66\/2019\/12\/img-seb.jpg","_links":{"self":[{"href":"https:\/\/www.univ-smb.fr\/listic\/wp-json\/wp\/v2\/posts\/8262","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.univ-smb.fr\/listic\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.univ-smb.fr\/listic\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.univ-smb.fr\/listic\/wp-json\/wp\/v2\/users\/129"}],"replies":[{"embeddable":true,"href":"https:\/\/www.univ-smb.fr\/listic\/wp-json\/wp\/v2\/comments?post=8262"}],"version-history":[{"count":3,"href":"https:\/\/www.univ-smb.fr\/listic\/wp-json\/wp\/v2\/posts\/8262\/revisions"}],"predecessor-version":[{"id":10795,"href":"https:\/\/www.univ-smb.fr\/listic\/wp-json\/wp\/v2\/posts\/8262\/revisions\/10795"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.univ-smb.fr\/listic\/wp-json\/wp\/v2\/media\/8265"}],"wp:attachment":[{"href":"https:\/\/www.univ-smb.fr\/listic\/wp-json\/wp\/v2\/media?parent=8262"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.univ-smb.fr\/listic\/wp-json\/wp\/v2\/categories?post=8262"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.univ-smb.fr\/listic\/wp-json\/wp\/v2\/tags?post=8262"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}