Oct 9, 2019DIMON — A distributed and decentralised monitoring system based on AntidoteDB for Guifi.netThe Guifi.net network has grown over the past 15 years as a technological, social and economic project to provide Internet access nowadays to more than 80.000 people. This infrastructure was initially built with WiFi radio connections and, nowadays, also employs fibre optic links to reach thousands of households. The monitoring…Cloud Computing7 min readCloud Computing7 min read
Sep 24, 2019Self Sufficient Precision Agriculture Management for IrrigationWith the growing adoption of the Internet of Things (IoT), connected devices have penetrated every aspect of our life, from health and fitness, home automation, automotive and logistics, to smart cities and industrial IoT. Thus, it is only reasonable that IoT, connected devices, and automation would find its application in…Agriculture4 min readAgriculture4 min read
Aug 2, 2019Scaling Erlang DistributionOne technology used by many partners in the LightKone project is Erlang and its standard library OTP, because of its excellent properties when it comes to developing distributed systems all the way down to the light edge. Even though Erlang/OTP has built-in distribution mechanics, those doesn’t always scale to the…Erlang3 min readErlang3 min read
Jul 19, 2019Global Storage and Composable SearchModern enterprises are realizing that their data is pure gold, but like the gold buried deep in the earth, data is not worth much if it cannot be accessed. Unlike gold, where scarcity increases value, quantity and completeness make data more valuable. …Database7 min readDatabase7 min read
Jun 25, 2019CRDT storage for the EdgeDespite advancements in connectivity for user devices by service providers, mobile devices will remain subject to frequent periods of disconnection by their very nature. In order for the user to be able to interact with an application during periods of disconnection, the application must store its data on the device…Technology5 min readTechnology5 min read
Jun 11, 2019The Quest for Correctness Under Weak ConsistencyData replication is a key technique for building highly available (distributed) systems. Unfortunately, as stated in the CAP theorem, in systems that are prone to network partitions (any distributed system), it is impossible to provide at the same time strong consistency (everybody sees the same updates in the same order)…Distributed Systems7 min readDistributed Systems7 min read
May 6, 2019Living at the edge, safelyThe cloud was about server-based communication and content delivery. But, as Peter van Roy put in his recent post, “the edge is becoming the centre”. Edge computing promises fast response, high availability, and keeping private data where it belongs, in the users’ hands. …Programming7 min readProgramming7 min read
Mar 28, 2019Five reasons why the edge is becoming the centerThe “edge” of the Internet consists of the numerous heterogeneous, loosely coupled nodes situated at the logical extreme of the Internet. The edge is increasing in relevance with respect to data centers. The current situation, in which data centers are effectively in control of the Internet, is becoming unstable. The…Internet Of Things4 min readInternet Of Things4 min read
Feb 13, 2019Aggregation is not replicationBoth distributed aggregation and replication for high availability (yes, I am thinking of CRDTs) are techniques that can help tackle geo-replication, offline operation and edge/fog computing. Distributed aggregation often shares many properties in common with CRDT style convergent replication, but they are not the same concept. …Distributed Systems3 min readDistributed Systems3 min read
