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Lightning Introductionto CassandraMichaël Figuière@mfiguiere
Speaker                 Michaël Figuière                      @mfiguiere©2012 DataStax                      2
Ring Architecture                        Node     Node                 Node     Cassandra     Node                        ...
Ring Architecture                         Node     Replica                 Node                                           ...
Linear Scalability                 Client Writes/s by Node Count - Replication Factor = 3©2012 DataStax                   ...
Client / Server Communication          Client   ?           Node     Replica          Client                       Node   ...
Client / Server Communication          Client           Node         Replica          Client                   Node       ...
Request Path                       1          Client                   Node             Replica                           ...
Column Family Data Model                             name        email         address    state                  jbellis  ...
Column Family Data Model                            dhutch     egilmore    datastax   mzcassie                  jbellis   ...
CQL3 Data Model    Timeline Table         user_id     tweet_id      author                       body         gmason      ...
CQL3 Data Model    Timeline Table         user_id     tweet_id     author                       body         gmason       ...
CQL3 Data Model    Timeline Table         user_id         tweet_id        author                            body         g...
Stay Tuned!          blog.datastax.com          @mfiguiere
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Data stax - lightning introduction to cassandra - Marmite NoSql

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Transcript of "Data stax - lightning introduction to cassandra - Marmite NoSql"

  1. 1. Lightning Introductionto CassandraMichaël Figuière@mfiguiere
  2. 2. Speaker Michaël Figuière @mfiguiere©2012 DataStax 2
  3. 3. Ring Architecture Node Node Node Cassandra Node Node Node©2012 DataStax 3
  4. 4. Ring Architecture Node Replica Node Replica Node Replica©2012 DataStax 4
  5. 5. Linear Scalability Client Writes/s by Node Count - Replication Factor = 3©2012 DataStax 5
  6. 6. Client / Server Communication Client ? Node Replica Client Node Replica Client Node Client Replica©2012 DataStax 6
  7. 7. Client / Server Communication Client Node Replica Client Node Replica Client Node Client Replica Coordinator node: Forwards all R/W requests to corresponding replicas©2012 DataStax 7
  8. 8. Request Path 1 Client Node Replica 2 3 Client 4 2 Node Replica 3 Client 2 3 Node Client Replica Coordinator node©2012 DataStax 8
  9. 9. Column Family Data Model name email address state jbellis Jonathan jb@ds.com 123 main TX name email address state dhutch Daria dh@ds.com 45 2nd st CA name email egilmore Eric eg@ds.com Row Key Columns©2012 DataStax 9
  10. 10. Column Family Data Model dhutch egilmore datastax mzcassie jbellis egilmore dhutch datastax mzcassie egilmore Row Key Columns©2012 DataStax 10
  11. 11. CQL3 Data Model Timeline Table user_id tweet_id author body gmason 1765 phenry Give me liberty or give me death gmason 1742 gwashington I chopped down the cherry tree ahamilton 1797 jadams A government of laws, not men ahamilton 1742 gwashington I chopped down the cherry tree Partition Remaining Key Key©2012 DataStax 11
  12. 12. CQL3 Data Model Timeline Table user_id tweet_id author body gmason 1765 phenry Give me liberty or give me death gmason 1742 gwashington I chopped down the cherry tree ahamilton 1797 jadams A government of laws, not men ahamilton 1742 gwashington I chopped down the cherry tree CQL CREATE TABLE timeline ( user_id varchar, tweet_id uuid, author varchar, body varchar, PRIMARY KEY (user_id, tweet_id));©2012 DataStax 12
  13. 13. CQL3 Data Model Timeline Table user_id tweet_id author body gmason 1765 phenry Give me liberty or give me death gmason 1742 gwashington I chopped down the cherry tree ahamilton 1797 jadams A government of laws, not men ahamilton 1742 gwashington I chopped down the cherry treeTimeline Physical Layout [1742, author] [1742, body] [1765, author] [1765, body] gmason gwashington I chopped down the... phenry Give me liberty or give... [1742, author] [1742, body] [1797, author] [1797, body] ahamilton gwashington I chopped down the... jadams A government of laws...©2012 DataStax 13
  14. 14. Stay Tuned! blog.datastax.com @mfiguiere
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