riak vs cassandra

Cassandra hbase Consistency Quorum NRW PolicySynchronizes Merkle tree using the gossip Protocol to maintain data consistency between cluster nodes. Single Node, no replication, Strong Consistency Availability 1. Data is replicated based on the consistent hash adjacent nodes. The data exists in multiple nodes and is not spof.2. If a node goes down, new data from hash to the node is automatically routed to the next node for hi

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 very useful tool, the monopoly is about to be

In NoSQL's heyday today, a variety of nosql products are blossoming, but each product has its own characteristics, there are advantages and not suitable for the scene. In this paper, the characteristics of cassandra,mongodb,couchdb,redis,riak and HBase are analyzed in many aspects, I hope you will have a better understanding of the characteristics of these nosql products after reading this article.

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. B

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 could not meet my needs. However, the differe

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 de

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

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

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.

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 the key1, and this time user Y knows the value is 3. Then User X does a +1 operation on the

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

Cluster machine: 1. Windows 7 10.202.92.124 [seed] 2. Windows Server 2008 R2 Enterprise 10.202.92.93 Zero: prerequisites1. Set JDK and Google or easy.2. download the latest Apache-Cassandra. This article uses APACHE-Cassandra-1.2.0 version, download the official website is: http://cassandra.apache.org I. Configuration Original configuration in CONF/Cassandra