{"id":1053,"date":"2026-07-24T03:36:39","date_gmt":"2026-07-24T07:36:39","guid":{"rendered":"https:\/\/sites.bu.edu\/casp\/?p=1053"},"modified":"2026-07-24T03:36:39","modified_gmt":"2026-07-24T07:36:39","slug":"paper-accepted-at-nsdi27","status":"publish","type":"post","link":"https:\/\/sites.bu.edu\/casp\/2026\/07\/24\/paper-accepted-at-nsdi27\/","title":{"rendered":"Paper accepted at NSDI&#8217;27"},"content":{"rendered":"<p>Our paper &#8220;<span class=\"taghl\"><span class=\"ptitle\"><strong>Koala: Non-disruptive Reconfiguration for Long-running Stateful Dataflows<\/strong>&#8221; was just accepted at <a href=\"https:\/\/www.usenix.org\/conference\/nsdi27\">USENIX NSDI&#8217;27<\/a>!<\/span><\/span><\/p>\n<p><em>Koala<\/em> is a novel reconfiguration protocol for distributed dataflow systems that retains the operational performance of embedded-state architectures while matching the disruption-free adaptability of external-state designs. Unlike prior protocols which relocate all state regardless of whether it will soon be accessed, Koala migrates state in a fine-grained, lazy manner. To achieve that, it employs a lightweight ownership transfer mechanism that safely decouples event routing from state location.<\/p>\n<p><span class=\"taghl\"><span class=\"ptitle\">Congratulations to <a href=\"https:\/\/sites.bu.edu\/casp\/people\/lei-huang\/\">Lei Huang<\/a> for leading the effort and co-authors <\/span><\/span><a href=\"https:\/\/sites.bu.edu\/casp\/people\/sakshi-sharma\/\">Sakshi Sharma<\/a>, Chenxu Yu, <a href=\"https:\/\/sites.bu.edu\/casp\/people\/zikun-wang\/\">Zikun Wang<\/a>, <a href=\"https:\/\/sites.bu.edu\/casp\/people\/yuanli-wang\/\">Yuanli Wang<\/a>, Zichen Zhu,\u00a0<a href=\"https:\/\/sites.bu.edu\/casp\/people\/john-liagouris\/\">John Liagouris<\/a>, and <a href=\"https:\/\/sites.bu.edu\/casp\/people\/191\/\">Vasiliki Kalavri<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Our paper &#8220;Koala: Non-disruptive Reconfiguration for Long-running Stateful Dataflows&#8221; was just accepted at USENIX NSDI&#8217;27! Koala is a novel reconfiguration protocol for distributed dataflow systems that retains the operational performance of embedded-state architectures while matching the disruption-free adaptability of external-state designs. Unlike prior protocols which relocate all state regardless of whether it will soon be [&hellip;]<\/p>\n","protected":false},"author":18854,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[9,4],"tags":[],"_links":{"self":[{"href":"https:\/\/sites.bu.edu\/casp\/wp-json\/wp\/v2\/posts\/1053"}],"collection":[{"href":"https:\/\/sites.bu.edu\/casp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sites.bu.edu\/casp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sites.bu.edu\/casp\/wp-json\/wp\/v2\/users\/18854"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.bu.edu\/casp\/wp-json\/wp\/v2\/comments?post=1053"}],"version-history":[{"count":3,"href":"https:\/\/sites.bu.edu\/casp\/wp-json\/wp\/v2\/posts\/1053\/revisions"}],"predecessor-version":[{"id":1056,"href":"https:\/\/sites.bu.edu\/casp\/wp-json\/wp\/v2\/posts\/1053\/revisions\/1056"}],"wp:attachment":[{"href":"https:\/\/sites.bu.edu\/casp\/wp-json\/wp\/v2\/media?parent=1053"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sites.bu.edu\/casp\/wp-json\/wp\/v2\/categories?post=1053"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sites.bu.edu\/casp\/wp-json\/wp\/v2\/tags?post=1053"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}