Column-Family Stores

Column-Family Stores

1. What is it?

   • Data storage
     • Column families as rows
       • Multiple columns
         • Sharing a row key
       • Access to related data
       • Possible different columns per row
       • Standard column family
         • Simple columns
   • Database examples
     • Cassandra
     • Hbase
     • Hypertable
     • Amazon SimpleDB

2. Suitable Use Cases

   • Event logging
     • Storage of numerous data structures
     • Scaling of writes
   • Blogging Platforms
   • Content Management Systems
     • Storage in different
       • Columns
       • Column family
   • Counters
     • CounterColumnType
   • Expiring usage
     • Expiring columns
     • Time to live
     • Automatic deletion

3. When not to use

   • ACID transactions required
   • Early stages of production
   • Unstable column family design