NoSql Database presentation

Transcript

1. NoSql   Databases By Suchit Puri
2. NoSql  is  the  new  buzz   word
3. Its  all  about  Scaling  ,   Availability,  High   Throughput  and  …     Really?  Lets  See…
4. But  before  that,    what  exactly  is  a  NoSql   database  ?  
5. Databases  which  don’t   have/support  relational   model.
6. No  Tables   No  Tuples   No  Relation  
7. Instead  they  have     Keys/Values   Documents   Graphs
8. CAP  Theorem
9. Consistency   Availability   Partition  tolerance  
10. 2000  Prof.  Eric  Brewer  ,  PoDC   conference  Keynote   “Off  three  properties  of  shared  data   system  ,  data  Consistency,  system   availability  and  tolerance  to  network   partitions  –  only  two  can  be  achieved  at   any  given  time”  
11. RDMS  designed  for     High  Consistency  (ACID)
12. Amazon  paper  on   DynamoDB h\p://www.allthingsdistributed.com/files/amazon-­‐‑dynamo-­‐‑sosp2007.pdf
13. Consistent  Hashing   h\p://www.allthingsdistributed.com/files/amazon-­‐‑dynamo-­‐‑sosp2007.pdf
14. Vector  Clocks     h\p://www.allthingsdistributed.com/files/amazon-­‐‑dynamo-­‐‑sosp2007.pdf
15. Gossip  Protocol   h\p://www.allthingsdistributed.com/files/amazon-­‐‑dynamo-­‐‑sosp2007.pdf
16. Merkel  Trees   h\p://www.allthingsdistributed.com/files/amazon-­‐‑dynamo-­‐‑sosp2007.pdf
17. Riak  DB,  an  Open  Source   Implementation  of  concepts   mentioned  in  Amazon  DynamoDB   paper
18. Riak  Exposes  everything   as  HTTP  calls
19. Can  Control  CAP  theorem   properties  per  bucket.
21. Document  Oriented   NoSql  Database
22. Collections  ,  A  group  of   documents
23. A  document  is  just  a  hash       { "ʺ_id"ʺ  :  ObjectId("ʺ508d3d35421aa9e922000001"ʺ), "ʺfirst_name"ʺ  :  "ʺSarah"ʺ, "ʺmiddle_name"ʺ  :  "ʺLinc"ʺ, "ʺlast_name"ʺ  :  "ʺJohnsson"ʺ, "ʺemail"ʺ  :  "ʺsarahlincjohnsson@email.com"ʺ }
24. Relationships  between   collections         Embedded     VS    Reference
25. MongoDB  Global  lock   One  write  or  multiple   reads  at  any  given  time
26. Have  been  working  in   MongoDB  for  close  to  one   year  now
27. Raised  A  bug  in   MongoDB   [MongoDB-­‐‑JIRA]  (CS-­‐‑3016)  Authentication  Causes   Decreased  Performance  in  Channel4  Java  Application
28. Questions  ?