apache cassandra ignite presentation
DESCRIPTION
This Ignite presentation was given at the Denver Open Source Users Group in October 2010.TRANSCRIPT
A Highly Scalable NoSQL Database
Jared WinickDOSUG Ignite10.05.2010
“NoSQL is about using the right tool for the job”- Jonathan Ellis, Project chair for Apache Cassandra
Mr. Google BigTable Ms. Amazon Dynamo
Palo Alto, CA. 2008
The Next Morning…
Mr. Google BigTable Ms. Amazon Dynamo
9 Months Later. It’s a girl!!!
2010
One NoSQL database to rule them all?
(One NoSQL database to rule them all?)
MongoDB
Redis CouchDB
Neo4J
HBaseOracle
Cassandramembase
MySQL
BigTable’s ColumnFamily Data Model
UserColumnFamily = { ‘userid00000': { 'id': ‘userid00000', 'username': jaredwinick', ‘name’: ‘Jared Winick’ }, ‘userid00001’: { ‘id’: ‘userid00001’, ‘username’ : ‘barackobama’, ‘name’ : ‘Barack Obama’, ‘location’ : ‘Washington, D.C.’, ‘bio’ : ‘44th President of the United States’ }, …}
Multi-dimensional Hash O(1)
Sparse Columns
Column FamilyKeyColumn NameColumn Value
Schema-Free
Find row In UserColumnFamily Where username = ‘jaredwinick’
No Key, No Row
UserNameColumnFamily = { ‘jaredwinick': { 'id': ‘userid00000' }, ‘barackobama’: { ‘id’: ‘userid00001’ }, …}
Solution
Start Think about query requirements
Model Data Appropriately
Dynamo’s Fully Distributed Design == No SPOF
Rack Aware
Datacenter Aware
Eventual Consistency != No Consistency
ColumnFamilyInputFormat
ColumnFamilyOutputFormat
Won’t help you tighten a nut.
#cassandra @ irc.freenode.net#irc
http://www.riptano.com/
http://www.cs.cornell.edu/projects/ladis2009/papers/lakshman-ladis2009.pdfhttp://labs.google.com/papers/bigtable.html
http://www.allthingsdistributed.com/files/amazon-dynamo-sosp2007.pdf
http://cassandra.apache.org/
(2) http://upload.wikimedia.org/wikipedia/commons/3/30/Furniture_installation_tools.jpg(3) http://en.wikipedia.org/wiki/File:Waldburg_Ahnentafel.jpg(6) http://www.oscarmaximus.com/stork_boy.JPG(8) http://media.monstersandcritics.com/articles/1206051/article_images/theeyeofsauronwithmountdoominthebackground.jpg(8) http://home.student.uu.se/j/jowi4905/fonts/annatar.html(8) http://www.thehutt.de/tolkien/fonts.html(9) http://kimdy.gri.re.kr/others/entertainment/the_lord_of_the_ring/stills_1/dvd_fellowship_1280.jpg(14) http://www.flickr.com/photos/32623546@N05/3639560735/(15) http://s3.amazonaws.com/AllThingsDistributed/sosp/amazon-dynamo-sosp2007.pdf(16) http://upload.wikimedia.org/wikipedia/commons/9/9d/Blank_map_of_the_United_States.PNG(17) http://www.flickr.com/photos/mskogly/3258771132/(19) http://www.flickr.com/photos/srudy/4679621144/(20) http://www.flickr.com/photos/gcoupe/20972113/
