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Platform Team/Sugar Network/Architecture: Difference between revisions

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* Clients create, modify and browse different types of resources ([[Sugar_Network/Concept#Resources|resources]] from conceptual point of view, [[Platform_Team/Sugar_Network/API#Resources|resources]] from the API point of view) on a server;
* Clients create, modify and browse different types of resources ([[Sugar_Network/Concept#Resources|resources]] from conceptual point of view, [[Platform_Team/Sugar_Network/API#Resources|resources]] from the API point of view) on a server;
* If this server is a [[#Node_servers|Node]] server, the system will take care about [[#Synchronisation|synchronizing]] its resources with other Node servers and, finally, with the central one, the [[#Master_server|Master]] server.
* If this server is a [[#Node_servers|Node]] server, the system will take care about [[#Synchronization|synchronizing]] its resources with other Node servers and, finally, with the central one, the [[#Master_server|Master]] server.


=== Components ===
=== Components ===
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* [[#Master_server|Master]] server that keeps the whole Sugar Network information, clients might connect directly to this server (on-line case) or indirectly via Node servers (off-line case);
* [[#Master_server|Master]] server that keeps the whole Sugar Network information, clients might connect directly to this server (on-line case) or indirectly via Node servers (off-line case);
* Optional [[#Node_servers|Node]] servers, contain a [[#Synchronisation|synchronised]] copy of central server (might be not for the entire Network to save storage space);
* Optional [[#Node_servers|Node]] servers, contain a [[#Synchronization|synchronised]] copy of central server (might be not for the entire Network to save storage space);


In all cases the server [[Platform_Team/Sugar_Network/API|API]] is the same for clients. But depending on connectivity, clients might be connected to the [[#Master_server|Master]] server or to a [[#Node_servers|intermediate server]].
In all cases the server [[Platform_Team/Sugar_Network/API|API]] is the same for clients. But depending on connectivity, clients might be connected to the [[#Master_server|Master]] server or to a [[#Node_servers|intermediate server]].
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* connectivity is not cheap and its usage needs to be minimized.
* connectivity is not cheap and its usage needs to be minimized.


Node servers provide full featured [[Platform_Team/Sugar_Network/API|API]] as the Master does. Nodes need to be [[#Synchronisation|synchronized]].
Node servers provide full featured [[Platform_Team/Sugar_Network/API|API]] as the Master does. Nodes need to be [[#Synchronization|synchronized]].
 
=== Synchronisation ===
 
To let Network participant, connected to particular [[#Node_servers|Node server]], interact with people from another Node servers or with people from the Internet, Node servers need to be synchronized.
 
Server might be synchronised:
 
* With the Master, if connectivity presents;
* With the Master or any other Node servers via the [[Wikipedia:Sneakernet|Sneakernet]].


== Conceptual level ==
== Conceptual level ==
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* Data accessible from removable devices like USB sticks or SD cards.
* Data accessible from removable devices like USB sticks or SD cards.


=== Implementations ===
== Synchronization ==


* [[Platform_Team/Sugar_Network/Mejorar_Sistema|Mejorar Sistema]].
To let Network participant, connected to particular [[#Node_servers|Node server]], interact with people from another Node servers or with people from the Internet (Master server), Node servers need to be synchronized.
 
Server might be synchronized:
 
* With the Master, if connectivity presents;
* With the Master or any other Node servers via the [[Wikipedia:Sneakernet|Sneakernet]].


== Getting involved ==
== Getting involved ==
Retrieved from "https://wiki.sugarlabs.org/go/Platform_Team/Sugar_Network/Architecture"