Long description

Three data server blocks are shown here. On top of these blocks it is labeled: These applications can only read and modify data in the masters. Two arrows labeled Web applications, points to the data server in all the three data server blocks. Below the first data server block it is labeled Master and below the next two blocks it is labeled Subordinates. All the three blocks are connected by arrows, and below the arrow it is labeled: Modification to master data have to be propogated out to all other masters; There can be data inconsistencies while changes are being synchronized.