ref: 122eaf84ccbf1c6694943bfcce99b47c8c19440b
dir: /README/
dddb (Distributed DisVM Database) is a WIP RDBMS, aimed to run on DisVM, hosted or native. TODO Components and functionalities * dddbctl fs - authenticated 9p fs to control, request, and query operations related to the database instance; it is the main driver for grid database * dddbclient fs - the tcp port 'dddb' is used such that clients can have a fs in which queries can be opened; it will support ANSI SQL * db registry - each instance will, on startup, connect to other instances defined in an ndb configuration file, register itself in that instance, and will be able to use it for: duplicating data, sharding data, and mount further instances; (i.e if a cluster is behind a firewall, and only one instance exposed, the hidden ones can be mounted outside the fw) * data structures (1) - primitives, pages, sections, indices, tables, rows * data structures (2) - B-trees, Bloom filters * storage operations - a mounted directory tree will be used for RDRW operations; memfs will be used for caching the data in RAM (performance?) * venti/vac support - venti + vac + memfs should suffice for storing and persisting data (ramfossil-like); this means scripts will clean and archive it * SQL parser - obviously * statement optimizer - obviously * wm/dddbmon - a nice admin monitor would be nice * dddbjdbc/dddbodbc - JDBC and ODBC drivers are mandatory