15. Advantages Disadvantages NO-SQL Windows platform is not supported Speed not durable (isn’t crash safe) high scalability: No actual limit size of a database file (to 8 exabytes) LOCK ( only one transaction can be activated with the database at the same time) Tokyo Cabinet is written in the C language, and provided as API of C, Perl, Ruby, Java, and Lua. high concurrency Write-ahead logging: (log transaction status-> succeeded, half-succeeded, or failed)