How does the OMGPOP produced by draw something respond to 36 million users within three weeks?
Adopted:
1) cloud computing.
2) nosql
See: How OMGPOP scaled to 36 million users in three weeks
OMGPOP can thank the cloud for its acquisition by Zynga on Wednesday. the gaming startup, whose draw something iPhone app used cloud computing and a nosql database to scale from zero (relatively speaking) to more than 35 million downloads in three weeks and never miss a beat.
I had a brief call on Thursday
.jarMsm-kryo-serializer-1.6.5.jarReflectasm-0.9.jarSpymemcached-2.10.2.jar"Note":msm1.6.5 relies on couchbase, need to add couchbase-client jar package, otherwise the launch will be reported: java.lang.noclassdeffounderror:com/couchbase/client/ Couchbaseclient.Tomcat6 and TOMCAT7 use different MSM support packages: Memcached-session-manager-tc6-1.6.5.jar and Memc
This failure was caused by the memcached server. This cloud server purchase time is 2013-02-21, the operating system is CentOS 6.2 64 bits, the configuration is 1 kernel cpu/4g memory. The memcached software is Couchbase, and the version is 2.0.0 Enterprise Edition (build-1976). Memcached customers are using enyimmemcached, the version is 2.12.
How to confirm is caused by the memcached server. Yesterday around 17:00 (still at the peak of the visit), a
PHP Build millions website Architecture technology secret: poppen.de German Social
After learning about the world's largest php site, Facebook's back-end technology, today we're going to look at a millions PHP site's site architecture: poppen.de. Poppen.de, a social networking site in Germany, is a very small site relative to Facebook and Flickr, but it has a very good architecture that incorporates many technologies such as Nigix,MySql, CouchDB, Er
After learning about the world's largest PHP site, Facebook's back-end technology, today we're going to look at a millions PHP site's site architecture: poppen.de. Poppen.de, a German social networking site, is a very small site relative to Facebook and Flickr, but it has a very good architecture that incorporates many technologies such as Nigix, MYSQL, CouchDB, Erlang, Memcached, RabbitMQ, PHP, Graphite, Red5, and Tsung.
Poppen.de currently has 2 mi
PHP Build millions website Architecture technology secret: poppen.de German Social
After learning about the world's largest php site, Facebook's back-end technology, today we're going to look at a millions PHP site's site architecture: poppen.de. Poppen.de, a social networking site in Germany, is a very small site relative to Facebook and Flickr, but it has a very good architecture that incorporates many technologies such as Nigix,MySql, CouchDB, Er
://microformats.org/wiki/hrecipe) and hreview (http://microformats.org/wiki/hreview ). among them, GEO is particularly worth noting that kml (http://code.google.com/apis/kml/documentation) output may be the simplest way to visualize GEO data.
The beautifulsoup package can implement simple web crawling. The two criteria for checking the crawling algorithm are performance and quality. Socialgraph node mapper (http://code.google.com/google-sgnodemapper) open source project standardizes some URLs,
Krist ófskács, 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 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 fou
Couch MapReduce query, CouchMapReduce
1. MapReduce introduces the traditional relational databases. As long as your data is structured, you can perform any type of query. Apache Couch, in contrast, uses MapReduce (a predefined map and reduce method) for queries. This query method is more flexible because it can adapt to various types of document structures and independently calculate and concurrently compute each document index. This method of combining map and reduce is called "View" in
complexity throughout your code. Cyclomatic complexity measures the number of linearly independent paths through a program ' s source code. Read more about cyclomatic complexity on Wikipedia."What does it mean to control complexity?"This option allows you to control the cyclomatic complexity throughout the code. Cyclomatic complexity measures the number of linear independent paths through the source code of a program. Learn more about the complexities on the lap Wikipedia. 】MaxLenThis option le
Article Source: http://article.yeeyan.org/view/271351/239915Although SQL database is a very useful tool, the monopoly is about to be broken after 15 years of a single show. This is only a matter of time: forced to use relational databases, but eventually found to be unable to adapt to the needs of the numerous.But the difference between NoSQL databases is far more than the differences between two SQL databases. This means that the Software architect should choose a suitable NoSQL database at the
Follow this step to install two, installed on SuSE is no problem, packaging is still in the study, check the light copy compiled file some problems.Software versions and dependencies:1.SpiderMonkey 1.7.02.ICU4C 4.2.13.libcurl 7.36.04.ncurses 5.95.openssl 1.0.1g6.erlang R16B03 relies on ncurses, OpenSSL7.couchDB 1.5.0 relies on all of the aboveSpidermonkey:js-1.7.0.tar.gz1 Tar 2 3make4 make build_opt=1 js_dist=/usr/local-f makefile.ref ExportIcu4c:icu
Label:Although SQL database is a very useful tool, the monopoly is about to be broken after 15 years of a single show. This is only a matter of time: forced to use relational databases, but eventually found to be unable to adapt to the needs of the numerous. But the difference between NoSQL databases is far more than two of the differences between SQL databases. This means that the Software architect should choose a suitable NoSQL database at the beginning of the project. In this case, Cassandra
This article by Bole Online-Tang Yuhua translation from Kristóf Kovács. Welcome to the technical translation team. Please refer to the requirements at the end of this article for reprint. Guide: Kristóf Kovács is a software architect and consultant who recently published an article comparing various types of NoSQL databases. Although SQL database is a very useful tool, the monopoly is about to be broken after 15 years of a single show. This is only a matter of time: forced to use relational data
Source: http://database.51cto.com/art/201109/293029.htmAlthough SQL database is a very useful tool, the monopoly is about to be broken after 15 years of a single show. This is only a matter of time: forced to use relational databases, but eventually found to be unable to adapt to the needs of the numerous.But the difference between NoSQL databases is far more than two of the differences between SQL databases. This means that the Software architect should choose a suitable NoSQL database at the b
After learning about the world's largest PHP site, Facebook's back-end technology, today we'll look at a millions PHP site's web architecture: poppen.de. Poppen.de, a social networking site in Germany, is a small web site relative to Facebook and Flickr, but it has a good architecture that incorporates a number of technologies, such as Nigix, MYSQL, CouchDB, Erlang, Memcached, RABBITMQ, PHP, Graphite, Red5, and Tsung.
Poppen.de currently has 2 millio
NoSQL Databases
Introduction
NoSQL is a revolutionary new database movement. NoSQL advocates the use of non-relational data storage. Today's computer architecture requires massive horizontal scalability in terms of data storage, while NoSQL is committed to changing this situation. Currently, Google BigTable and Amazon Dynamo use NoSQL databases.
However, the difference between NoSQL databases is far greater than that between SQL databases. This means that software architects should select a su
that the current download progress is prompted when downloading to the file, and the corresponding file is listed under the current directory after the file is downloaded. The code is not complex, there are any questions readers can leave a message to me, to communicate, the following code:
Copy Code code as follows:
===== FileName: get-webfile.ps1=====
function Get-webfile {
Downloads a file or page from the Web
. Example
Get-webfile Http://mirrors.cnnic.cn/apache/
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