[{"page":"187-190","quality_controlled":"1","publisher":"Association for Computing Machinery","author":[{"last_name":"Gelashvili","first_name":"Rati","full_name":"Gelashvili, Rati"},{"id":"f5983044-d7ef-11ea-ac6d-fd1430a26d30","full_name":"Kokoris Kogias, Eleftherios","last_name":"Kokoris Kogias","first_name":"Eleftherios"},{"full_name":"Spiegelman, Alexander","first_name":"Alexander","last_name":"Spiegelman"},{"full_name":"Xiang, Zhuolun","first_name":"Zhuolun","last_name":"Xiang"}],"_id":"10553","scopus_import":"1","title":"Brief announcement: Be prepared when network goes bad: An asynchronous view-change protocol","publication_status":"published","date_created":"2021-12-16T13:20:19Z","article_processing_charge":"No","department":[{"_id":"ElKo"}],"isi":1,"external_id":{"arxiv":["2103.03181"],"isi":["000744439800018"]},"date_updated":"2023-09-04T11:42:10Z","citation":{"ista":"Gelashvili R, Kokoris Kogias E, Spiegelman A, Xiang Z. 2021. Brief announcement: Be prepared when network goes bad: An asynchronous view-change protocol. Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing. PODC: Principles of Distributed Computing, 187–190.","short":"R. Gelashvili, E. Kokoris Kogias, A. Spiegelman, Z. Xiang, in:, Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing, Association for Computing Machinery, 2021, pp. 187–190.","mla":"Gelashvili, Rati, et al. “Brief Announcement: Be Prepared When Network Goes Bad: An Asynchronous View-Change Protocol.” <i>Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing</i>, Association for Computing Machinery, 2021, pp. 187–90, doi:<a href=\"https://doi.org/10.1145/3465084.3467941\">10.1145/3465084.3467941</a>.","ieee":"R. Gelashvili, E. Kokoris Kogias, A. Spiegelman, and Z. Xiang, “Brief announcement: Be prepared when network goes bad: An asynchronous view-change protocol,” in <i>Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing</i>, Virtual, Italy, 2021, pp. 187–190.","chicago":"Gelashvili, Rati, Eleftherios Kokoris Kogias, Alexander Spiegelman, and Zhuolun Xiang. “Brief Announcement: Be Prepared When Network Goes Bad: An Asynchronous View-Change Protocol.” In <i>Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing</i>, 187–90. Association for Computing Machinery, 2021. <a href=\"https://doi.org/10.1145/3465084.3467941\">https://doi.org/10.1145/3465084.3467941</a>.","ama":"Gelashvili R, Kokoris Kogias E, Spiegelman A, Xiang Z. Brief announcement: Be prepared when network goes bad: An asynchronous view-change protocol. In: <i>Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing</i>. Association for Computing Machinery; 2021:187-190. doi:<a href=\"https://doi.org/10.1145/3465084.3467941\">10.1145/3465084.3467941</a>","apa":"Gelashvili, R., Kokoris Kogias, E., Spiegelman, A., &#38; Xiang, Z. (2021). Brief announcement: Be prepared when network goes bad: An asynchronous view-change protocol. In <i>Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing</i> (pp. 187–190). Virtual, Italy: Association for Computing Machinery. <a href=\"https://doi.org/10.1145/3465084.3467941\">https://doi.org/10.1145/3465084.3467941</a>"},"year":"2021","abstract":[{"text":"The popularity of permissioned blockchain systems demands BFT SMR protocols that are efficient under good network conditions (synchrony) and robust under bad network conditions (asynchrony). The state-of-the-art partially synchronous BFT SMR protocols provide optimal linear communication cost per decision under synchrony and good leaders, but lose liveness under asynchrony. On the other hand, the state-of-the-art asynchronous BFT SMR protocols are live even under asynchrony, but always pay quadratic cost even under synchrony. In this paper, we propose a BFT SMR protocol that achieves the best of both worlds -- optimal linear cost per decision under good networks and leaders, optimal quadratic cost per decision under bad networks, and remains always live.","lang":"eng"}],"doi":"10.1145/3465084.3467941","arxiv":1,"day":"21","language":[{"iso":"eng"}],"keyword":["optimal","state machine replication","fallback","asynchrony","byzantine faults"],"conference":{"name":"PODC: Principles of Distributed Computing","start_date":"2021-07-26","end_date":"2021-07-30","location":"Virtual, Italy"},"publication":"Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing","month":"07","oa_version":"Preprint","status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2103.03181"}],"date_published":"2021-07-21T00:00:00Z","type":"conference","oa":1,"publication_identifier":{"isbn":["9-781-4503-8548-0"]}}]