Generating XML-Sitemaps 4 Google
gissmog // Rails, Mac, Tech, CSS/Design, Fun, Hackfressen.
gissmog // Rails, Mac, Tech, CSS/Design, Fun, Hackfressen.
Welcome to the Cassandra Project
Cassandra is a highly scalable, eventually consistent, distributed, structured key-value store. Cassandra brings together the distributed systems technologies from Dynamo and the data model from Google's BigTable. Like Dynamo, Cassandra is eventually consistent. Like BigTable, Cassandra provides a ColumnFamily-based data model richer than typical key/value systems.
Cassandra was open sourced by Facebook in 2008, where it was designed by one of the authors of Amazon's Dynamo. In a lot of ways you can think of Cassandra as Dynamo 2.0. Cassandra is in production use at Facebook but is still under heavy development.
Installing libevent
libevent is a prerequisite for memcached:
$ curl -O http://www.monkey.org/~provos/libevent-1.4.12-stable.tar.gz $ tar xzvf libevent-1.4.12-stable.tar.gz $ cd libevent-1.4.12-stable $ ./configure $ make $ make verify $ sudo make installInstalling memcached
$ curl -O http://memcached.googlecode.com/files/memcached-1.4.1.tar.gz $ tar xzvf memcached-1.4.1.tar.gz $ cd memcached-1.4.1 $ ./configure $ make $ make test $ sudo make installTesting
In my case I have a script in the script dir of a Rails application that I call whenever I want to start or stop memcached, so I just used that:
$ script/memcached memcached not running: starting $ script/memcached memcached running: stopping(The script basically just does memcached -d -P pidfile -l 127.0.0.1 to start memcached.)
See also
IxEdit is a JavaScript-based interaction design tool for the web. With IxEdit, designers can practice DOM-scripting without coding to change, add, move, or transform elements dynamically on your web pages. Especially, IxEdit must be useful to try various interactions rapidly in the prototyping phase of your web application.
Mongo (from "humongous") is a high-performance, open source, schema-free document-oriented database. MongoDB is written in C++ and offers the following features:
