The spider storage engine enables tables of different MySQL instances to be treated like a table of a same instance.
Because xa transaction and partitioning is supported, it can do decentralized arrangement to two or more servers of data of same table.
The new storage engine "Spider" does work for its strong scalability to access other storage engine of MySQL, to idea to the most considerations are below;
4:Reduce The Cost
All bugs Latest bugs reported
Bug #1210707: No code for spider 3.0 in lp
Reported on 2013-08-10
Bug #1152432: Unexpected response from UPDATE statement
Reported on 2013-03-08
Bug #1129074: Parallel BG search does not always work
Reported on 2013-02-18
Bug #1075574: Impossible to compile source Ubuntu 12.04 64bit
Reported on 2012-11-06
Bug #1072831: date_sub() function for delete sql through spider will wrong
Reported on 2012-10-29