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CAP简介
CAP简介
CAP简介
CAP简介
CAP简介
CAP简介
CAP简介
CAP简介
CAP简介
CAP简介
CAP简介
CAP简介
CAP简介
CAP简介
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CAP简介

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Transcript

  • 1. CAP
  • 2. ( Consistency)
  • 3. ( Consistency)
  • 4. ( Consistency)
  • 5. DB( Consistency)
  • 6. DB DB ( Consistency)
  • 7. DB DB ( Consistency)
  • 8. DB DB ( Consistency)0.5 * p * (1 - p) + 0.5 * p * (1 -p) + 1 * p * p = p
  • 9. DB DB ( Consistency) (Tolerance of network Partition)BigTable (column-oriented/tabular)Hypertable (column-oriented/tabular)HBase (column-oriented/tabular)MongoDB (document-oriented)Terrastore (document-oriented)Redis (key-value)Scalaris (key-value)MemcacheDB (key-value)Berkeley DB (key-value)
  • 10. DB DB ( Consistency)Traditional RDBMSs like Postgres, MySQL, etc (relational)Vertica (column-oriented)Aster Data (relational)Greenplum (relational)
  • 11. DB DB ( Consistency)Dynamo (key-value)Voldemort (key-value)Tokyo Cabinet (key-value)KAI (key-value)Cassandra (column-oriented/tabular)CouchDB (document-oriented)SimpleDB (document-oriented)Riak (document-oriented)
  • 12. dl1 dl2
  • 13. dl1 dl2
  • 14. dl1 dl2

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