Symmetrical Mulitple Databace - Non center, auto spliting, auto backup, auto error recover, data storage and calculation distribute. For large scale web site storage and calculation. Small Server - Simply multiply thread socket server.
Nodes are some servers or hosts with fixed ip-port pairs.
Nodes are configed with several known friends. Every node maintains a hash table-rbtree data structure that contains the node map information. Nodes can do fast sync with the friends to update this node map. MD4 signiture are used for fast sync.
Every working node serves a range. Every range could have 3 nodes working at the same time. If a new node has join a node map, it can find its job automatically.
The ranges would be able to cover the complete 0 ~ 0xffffffff area. That makes every hash result could find a responser node.
Beside the node map, a pie-slice map is also be recorded by every node. The pie-slice map is designed for fast range node finding and automatic spliting.
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