{"id":157740,"date":"2009-06-19T00:00:00","date_gmt":"2009-06-19T00:00:00","guid":{"rendered":"https:\/\/cm-edgetun.pages.dev\/en-us\/research\/msr-research-item\/cimsync-protocol-specification\/"},"modified":"2018-10-16T22:01:20","modified_gmt":"2018-10-17T05:01:20","slug":"cimsync-protocol-specification","status":"publish","type":"msr-research-item","link":"https:\/\/cm-edgetun.pages.dev\/en-us\/research\/publication\/cimsync-protocol-specification\/","title":{"rendered":"CIMSync Protocol Specification"},"content":{"rendered":"<div class=\"asset-content\">\n<p>Cimbiosys is a novel peer-to-peer replication platform that permits each device to define its own content-based filter criteria. Cimbiosys attains two properties not achieved by previous systems: (1) eventually, every device stores exactly those items whose latest version meets its arbitrary filter criteria, independent of any hierarchical namespace and (2) eventually, every device can summarize its metadata in a compact form, with size proportional to the number of devices rather than the number of items. The first property is a matter of correctness; the second a matter of efficiency.<\/p>\n<p>This report describes and presents a specification of the Cimbiosys synchronization protocol, CIMSync. The specification is written in TLA+ and checked with the TLC model checker.<\/p>\n<\/div>\n<p><!-- .asset-content --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cimbiosys is a novel peer-to-peer replication platform that permits each device to define its own content-based filter criteria. Cimbiosys attains two properties not achieved by previous systems: (1) eventually, every device stores exactly those items whose latest version meets its arbitrary filter criteria, independent of any hierarchical namespace and (2) eventually, every device can summarize 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