Posted by Peter Neubauer on May 12, 2010 Sections Operations & Infrastructure ,
All Slides and Videos from Cassandra SF 2011 have been posted. Thanks to all that attended and we look forward to seeing you next year! Keynote Presentation Jonathan Ellis (DataStax) – State of Cassandra, 2011 ( Slides and HD Video )
Non-relational databases are an alternative to SQL databases and would rather call themselves ‘big data DBs’, say the pros in the industry. Calling non-relational databases as ‘No SQL’ is in a way misleading as this a ‘dynamic’ database platform. The most remarkable amongst the free structured data DB’s is MongoDB .
There are so many NoSQL systems these days that it's hard to get a quick overview of the major trade-offs involved when evaluating relational and non-relational systems in non-single-server environments. I've developed this visual primer with quite a lot of help (see credits at the end), and it's still a work in progress, so let me know if you see anything misplaced or missing, and I'll fix it. Without further ado, here's what you came here for (and further explanation after the visual). Note: RDBMSs (MySQL, Postgres, etc) are only featured here for comparison purposes.
This is a historic archive about the raise of NoSQL. It includes all relevant links from 2008&2009 till the end of 2011. UnQL Richard Hipp, Damien Katz » ★ (see some example queries) "35+ Use Cases For Choosing Your Next NoSQL Database",High Scalability Blog, » "101 Questions To Ask When Considering A NoSQL Database", High Scalability Blog, » ★ "Measuring the scalability of SQL and NoSQL systems", Adam Silberstein and Raghu Ramakrishnan, Yahoo! Research, » (via odbms.org ) "The NoSQL Ecosystem", Adam Marcus (from tehe aosabook.org), » "Lies, Damn Lies and NoSQL", the Basho Blog, » "Eventual Path Consistency", K.S.
After Twitter and digg, now is Reddit who announced yesterday that they switched their database to NoSQL Cassandra database; this is the second big social bookmark that switch to cassandra in two days. As i mentioned in my previous article , Cassandra is an open source project that develops a highly scalable second-generation distributed database. Reddit explained the reason of this move “In case you are wondering why we chose Cassandra: it is way faster, more scalable, and has a rich and active development community full of extremely smart and helpful people. It’s in use or going to be in use by several large companies ( Twitter , Facebook , digg , Rackspace). We have the ability to add nodes as load and storage requires, and we have the ability to move non-cache type data into it as appropriate.”
The World Bank EdStats Query holds around 2,500 internationally comparable education indicators for access, progression, completion, literacy, teachers, population, and expenditures. The indicators cover the education cycle from pre-primary to tertiary education. The query also holds learning outcome data from international learning assessments (PISA, TIMSS, etc.), equity data from household surveys, and projection data to 2050. more <p style="text-align:right;color:#A8A8A8"></p>