The physical platforms can be organized in different ways. For example, we can have an Ethernet LAN that has a single coaxial cable shared by all nodes, or a hub connecting the nodes with twisted pair cables into a star-like network. Moreover, the number of nodes and their capabilities can also vary from LAN to LAN. If we want to run a massive networked application over a diverse set of physical platforms, we have to implement a workload balancing mechanism to the logical platform to make it more dynamic. How can we make communication, data, and control architectures more dynamic in the following cases? Approach the problem from the point of view of roles, responsibilities, and functionalities and consider how they are interconnected. (a) Dynamic communication: If we have a server-network on a LAN, how can we increase and decrease the number of servers on the fly without informing this change to the clients? (b) Dynamic data: Suppose the data is distributed among the nodes on a WAN and we want to keep the overall delay of the data updates low. How can we realize handing over the data ownership (and its location site) to the node that is geographically nearer to the source of the update messages?
The physical platforms can be organized in different ways. For example, we can
have an Ethernet LAN that has a single coaxial cable shared by all nodes, or a hub
connecting the nodes with twisted pair cables into a star-like network. Moreover, the
number of nodes and their capabilities can also vary from LAN to LAN. If we want
to run a massive networked application over a diverse set of physical platforms, we
have to implement a workload balancing
it more dynamic.
How can we make communication, data, and control architectures more dynamic in
the following cases? Approach the problem from the point of view of roles, responsibilities, and functionalities and consider how they are interconnected.
(a) Dynamic communication: If we have a server-network on a LAN, how can we
increase and decrease the number of servers on the fly without informing this
change to the clients?
(b) Dynamic data: Suppose the data is distributed among the nodes on a WAN
and we want to keep the overall delay of the data updates low. How can we
realize handing over the data ownership (and its location site) to the node that
is geographically nearer to the source of the update messages?
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