Sep 26

“Many developers are discovering that traditional relational databases make it hard to scale to the large data volumes and user traffic required by Internet-scale applications. MongoDB is sailing up as one of the leading contenders in the NoSQL space. We at Comoyo are using MongoDB on Amazon Elastic Cloud Compute (EC2) for our payment subsystems, with a target of some hundred millions users regularly accessing the system. As we are handling financial transactions with high demands on reliability, we needed to make sure that MongoDB did not sacrifice our customers’ safety on the altar of performance. This talk presents how we use MongoDB to gain higher availability and scalability than traditional databases, with simpler development and administration, without losing the required reliability and durability.
The talk describes how we configured replication, and our approach to work around the lack of transactions in MongoDB. There will be pointers on tuning MongoDB for availability and reliability. Also, the talk will describe how we used MongoDB to implement once-and-only-once messaging semantics on top of Amazon Simple Queuing Service (SQS).”

Wyświetlenia :21096

written by Krzysztof Kędziorski \\ tags: , ,

Sep 23

“MongoDB is a scalable, high-performance, open source, document-oriented NoSQL database. It features document-oriented, JSON-based document storage and dynamic schemas providing simplicity, power and flexibility, combined with full indexes similar to what a traditional RDBMS user would expect. MongoDB also provides solid replication & high availability features as well as an auto-sharding system for transparent horizontal scalability. This talk introduces MongoDB for developers who aren’t familiar with it, and discusses various integration points for MongoDB & the JVM including Spring’s “Spring Data” component for MongoDB, the Morphia Object Mapper for Java, MongoDB’s Scala Drivers (Casbah, as well as a new experimental Asynchronous driver called “Hammersmith”), Akka Durable Mailboxes, the Salat Object-Document mapping system for Scala, and MongoDB’s Hadoop integration.
Brendan maintains and supports the Java driver, as well as providing support for alternative JVM languages. He is currently developing a Hadoop integration plugin for MongoDB. Brendan’s open source work related to MongoDB includes contributions to MongoKit, a Python object mapper for MongoDB as well as the creation of beaker_mongodb, a MongoDB persistence layer for the popular Python-based Beaker caching system. Brendan also created Casbah, a Scala toolkit for MongoDB. He is currently spending his spare time working on Hammersmith, an alternative asynchronous & non-blocking Scala driver for MongoDB.”

Wyświetlenia :4972

written by Krzysztof Kędziorski \\ tags: , , , , ,

Theme designed by Wordpress Hosting supported by Best Web Hosting.

pomiar szybkości łącza .:. audyty energetyczne Wrocław .:. Agent Allianz Wrocław .:. praca dodatkowa Wieluń .:. Producent Maszyn Rolniczych .:. agregat uprawowo siewny