Goodluck Jonathan Goodluck Jonathan Goodluck Ebele Azikiwe Jonathan (born 20 November 1957) is a Nigerian politician who served as the President of Nigeria from 2010 to 2015. Prior to that he served as Vice-President of Nigeria from 2007 to 2010 and as Governor of Bayelsa State from 2005 to 2007. He lost the 2015 presidential election to Muhammadu Buhari, becoming the first sitting Nigerian president to concede electoral defeat. Jonathan was born in what is now Bayelsa State to a family of canoe makers. He holds a B.Sc. degree in Zoology(Second Class Honours), an M.Sc. degree in Hydrobiology and Fisheries biology and
Optimistic replication to be synchronized when updating data, which helps concurrency and parallelism. The trade-off is that different replicas may require explicit reconciliation later on, which might then prove difficult or even insoluble. An optimistic replication algorithm consists of five elements: There are two strategies for propagation: state transfer, where sites propagate a representation of the current state, and operation transfer, where sites propagate the operations that were performed (essentially, a list of instructions on how to reach the new state). Scheduling and conflict resolution can either be syntactic or semantic. Syntactic systems rely on general information, such as when or where