Key messages on day two of the 'Agile on the Beach' conference included that self-organising teams who embrace ‘autonomy, purpose and mastery’ create a successful and resilient culture, there is need for technical leadership that encompasses programming, people and processes, and being truly agile involves working with ‘an ever evolving set of ever evolving practices’.
Eventual consistency is a design approach for improving scalability and performance. Domain events, a tactical element in Domain-Driven Design (DDD), can help in facilitating eventual consistency, Florin Preda and Mike Mogosanu writes in separate blog posts, each describing the advantages achievable.
Force12.io have released a prototype ‘microscaling’ container demonstration running on the Apache Mesos cluster manager, which they claim starts and stops ‘priority 1’ and ‘priority 2’ containers more rapidly than traditional autoscaling approaches when given a simulated demand for the differing workloads. InfoQ discussed the goals and methodology of this approach with Force12.io’s Ross Fairbanks.
Stephen Colebourne and OpenGamma released v1.1 of ElSql, a library and DSL for managing SQL in external files. Colebourne is well known for his work as the spec lead of Java Time, a cornerstone of last year's Java 8 release, and for his creation of the Joda Time and Joda Money API's.
Based on their experience with arbitrarily shutting down servers or simulating the shutdown of an entire data center in production, Netflix has proposed a number of principles of chaos engineering.
Hortonworks has quietly made available the DataFlow platform which is based on Apache NiFi and attempts to solve the processing needs of the IoAT.
Ratpack, a high performance Java web framework, has reached 1.0 status. The 1.0 release is API-stable and can be considered production ready. The main thing that makes Ratpack interesting is the execution model, which aims to make asynchronous programming on the JVM easier.
Pivotal announced a complete re-design of Spring XD, its big data offering, during last week’s SpringOne2GX conference, with a corresponding re-brand from Spring XD to Spring Cloud Data Flow. The new product is focussed on orchestration.
At the combined Agile Alliance and Agile Open Northwest Open Space event in Portland Declan Whelan and Diana Larsen led two sessions in which they explored the application of the Agile Fluency model for understanding and addressing technical debt and showed a game based on the model which teams can use to help them identify practices and principles they want to adopt based on their fluency goals
An agile workplace is one that is constantly changing, adjusting and responding to organizational needs. How to create an Agile workplace and what are the benefits.
ARIN, the resource registry that hands out allocations for IPv4 addresses, has announced that it has no more IPv4 addresses to give out. Although this doesn't mean no more IPv4 addresses will be allocated, it has brought to an end the question of when such addresses will run out. Meanwhile, IPv6 usage continues to climb with the release of iOS 9.
In theory the operations team determines what the thresholds for warnings and alerts should be. But in practice, the operations team often have no idea what these values should be. Using machine learning techniques such as adaptive thresholds, Splunk ITSI solves this problem.
The DBA’s primary job is to ensure that the business’s information is always available, with performance coming in at close second. We’ve already talked about optimizing distributed queries in Splunk and map-reduce queries in Hunk. In this report we expand upon that with more information that a DBA needs to know about Splunk databases.