riak database

Reprinted: http://www.ibm.com/developerworks/cn/opensource/os-riak1/index.html Introduction Typical modern relational databases are mediocre in some types of applications and cannot meet the performance and scalability requirements of today's Internet applications. Therefore, different methods are required. In the past few years, a new type of data storage has become very popular, often referred to as nosql, because it can directly solve some defects of relational databases.

Why should a riak cluster have at least five nodes and five riak clusters? Link: http://blog.csdn.net/ddjohn/article/details/43523983 First, ensure that you have correctly installed riak. When you use Riak Fast Track to quickly create three nodes in the development or test environment, we recommend that you deploy at

Distributed high-availability key-value pairs database Riak-background (3) Dynamo handling of data versionsThe problem of data versioning is not only in distributed systems, but in a simple discussion of distributed database systems. Let's look at a simple example where user X does a write to the Key1, and we set the value to be the number 3. Then user Y reads th

tree, Bloom Filter Bloom Filter Lock and transaction Client timestap (DYNAMO uses vector lock) Optimistic Concurrency Control Read/write Performance Fast data read/write positioning. Data read/write positioning may require a maximum of six network RPC times, with low performance. Cap comment 1. Weak Consistency, and data may be lost.2. high availability.3. Easy resizing. 1. Strong Consistency, zero data loss.2. low availability.3. Easy resizing.

First, install the Riak 1. Installation package: Riak_2.0.2-1_amd64.deb path: ~/software/riak_2.0.2-1_amd64.deb2. Install Riak $ su-root # cd/home/ubuntu/software # dpkg-i RIAK_2.0.2-1_AMD64.DEB3. Configure Riak (Profile/etc/riak/riak.conf) # Cd/etc/riak open riak.conf File

Reprinted: http://www.54chen.com/_linux_/riak-source-install-run.html Code running entryThe Riak-kV/Ebin/riak_kv.app file defines the structure of the OTP standard project, a good example: http://www.iteye.com/topic/342819The entry is defined in {mod, {riak_kv_app, []} line. Open the riak_kv_app file:-Export ([start/2, stop/1]).Two methods are defined: Start and Stop. Start:Start riak_kv and related servers

Tags: file high availability embedded CRM performance queue expired sales and so onTransferred from: http://www.cnblogs.com/alephsoul-alephsoul/archive/2013/04/26/3044630.html Guide: Kristóf Kovács is a software architect and consultant who recently published an article comparing various types of NoSQL databases. The article is compiled by Agile translator – Tang Yuhua. For reprint, please refer to the following statement. Although SQL database is a

Http://kkovacs.eu/cassandra-vs-mongodb-vs-couchdb-vs-redis from Cassandra vs MongoDB vs couchdb vs redis vs Riak vs hbase vs membase vs neo4j While SQL databases are insanely useful tools, their monopoly ~ 15 years is coming to an end. And it was just time: I can't even count the things that were forced into relational databases, but never really fitted them. But the differences between nosql databases are much bigger than it ever was between onesql

multi-site re Plication. for Example:point-of-sales data collection. Factory control systems. Places where even seconds of downtime hurt. HBase Written In:java Main point:billions of rows X millions of columns License:apache protocol:http/rest (also Thrift) Mode Led after BigTable map/reduce with Hadoop Query predicate push down via server side scan and get filters optimizations for Real time queries A High performance Thrift Gateway HTTP supports XML, protobuf, and binary ca

Introduction: Krist óf kolács is a software architect and consultant who recently published an article comparing various nosql databases. Article by agile translation-Tang YuhuaCompile. For more information, see post-Article declaration. Although SQL database is a very useful tool, after 15 years of outstanding performance, the monopoly will be broken. This is only a matter of time: I was forced to use relational databases, but I finally found that I

This article link: http://blog.csdn.net/ddjohn/article/details/43523983First make sure you install Riak correctly, when you use Riak fast track to quickly create 3 nodes in a development or test environment, we recommend that you deploy at least 5 nodes in all production environments to ensure that you benefit from the Riak high availability principle.Deploying f

Riak is a highly scalable distributed data storage written in Erlang. Riak is implemented based on Amazon Dynamo. one of Riak's design goals is high availability. Riak supports multi-node systems. each read/write request does not require the participation of all nodes in the cluster. Provides a flexible map/reduce engine and a friendly HTTP/JSON query interface.

Reprinted: http://blog.dloh.org/Riak,-haproxy,-and-client-side-applications Last night I switched my local phosgl development from a Django app to running a riaksearch cluster fronted by haproxy. the amount of change required was mapping the old URLs to the new Riak buckets. I created buckets for objects, images, sounds, shaders,And models. I also created an application bucket that serves the default HTML

A little Riak book boring Summary

Source: comparison of various nosql databases in http://hi.baidu.com/eastdoor/blog/item/758d0e3eedb5d92471cf6c14.html Cassandra, MongoDB, CouchDB, Redis, Riak, HBaseCouchDBDevelopment language: ErlangMain advantages: data consistency and ease of useLicense: ApacheProtocol: HTTP/RESTApplicable: accumulated, less changed data. Or a large number of versions are required.Example: CRM, CMS systems. multi-site deployment is allowed.RedisDevelopment language

partition. Partitions can occur on a network of production environments for a variety of reasons: garbage collection (GC) pressure, network card (NIC) failure, switch failure, configuration error, network congestion, and so on. Because of partitioning, the cap theorem limits the maximum guaranteed capacity that a distributed system can achieve. When a message is cut off, the "consistent" (CP) system rejects requests from certain nodes to maintain linear consistency. The available (AP) system, w

Abstract: Almost all software project development needs the support of the database, at present, with the rapid development of open source technology, more and more data suppliers choose Open Source database, contribute to the cause of open source. As a software developer or DBA, one of the essential tasks is to deal with databases, such as MS SQL Server, MySQL, Oracle, PostgreSQL, MongoDB, and so on. As w

Kristóf Kovács, a software architect and consultant, recently released an article comparing various types of NoSQL databases. Although the SQL database is a very useful tool, the monopoly is about to be broken after a 15-year solo show. It was only a matter of time: forced to use relational databases, but found that the inability to adapt to demand was too numerous. But the differences between the NoSQL databases are far greater than the differences

KristfKovcs, a software architect and consultant who once worked in a number of major companies, blogs on mainstream NoSQL databases (Cassandra, Mongodb, CouchDB, Redis, Riak, Membase, Neo4j, and HBase) A comprehensive comparison was conducted. Although SQL database is very useful NoSQL Krist ófskács, a software architect and consultant who once worked in a number of major companies, blogs on mainstream N

performance , according to Google's performance benchmark test, it can score in some test projects leading SQLite two orders of magnitude. SQLite is slightly better than leveldb in random read operations and is twice times faster than leveldb when writing larger data. Leveldb also performed better than Kyoto cabinet, Kyoto cabinet is also a key-value database, but Google did not compare it to all test projects, as SQLite did. Similarly,