‘In this paper we presented the RADStack, a collection of complementary technologies that can be used together to power interactive analytic applications. The key pieces of the stack are Kafka, Samza, Hadoop, and Druid. Druid is designed for exploratory analytics and is optimized for low latency data exploration, aggregation, and ingestion, and is well suited for OLAP workflows. Samza and Hadoop complement Druid and add data processing functionality, and Kafka enables high throughput event delivery.’
an asynchronous Netty based graphite proxy. It protects Graphite from the herds of clients by minimizing context switches and interrupts; by batching and aggregating metrics. Gruffalo also allows you to replicate metrics between Graphite installations for DR scenarios, for example. Gruffalo can easily handle a massive amount of traffic, and thus increase your metrics delivery system availability. At Outbrain, we currently handle over 1700 concurrent connections, and over 2M metrics per minute per instance.
Dublin is lucky enough to have great speakers pass through town on occasion and on Wednesday the 22nd April 2015, Runa A. Sandvik (@runasand) and Per Thorsheim (@thorsheim) have kindly offered to speak in TOG from 7pm. The format for the evening is a general meet and greet, but both speakers have offered to give a presentation on a topic of their choice. Anyone one interested in privacy, security, journalism, Tor and/or has previously attended a CryptoParty would be wise to attend. Doors are from 7pm and bring any projects with you you would like to share with other attendees. This is a free event, open to the public and no need to book. See you Wednesday. Runa A. Sandvik is an independent privacy and security researcher, working at the intersection of technology, law and policy. She contributes to The Tor Project, writes for Forbes, and is a technical advisor to both the Freedom of the Press Foundation and the TrueCrypt Audit project. Per Thorsheim as founder/organizer of PasswordsCon.org, his topic of choice is of course passwords, but in a much bigger context than most people imagine. Passwords, pins, biometrics, 2-factor authentication, security/usability and all the way into surveillance and protecting your health, kids and life itself.