Server/Architecture

Information flow

<graphviz> digraph G { size="14,20"; node [URL="http://meta.cosmopool.net/wiki/\N"]

Client;

subgraph cluster_node1 { label="Node 1";

subgraph cluster_webserver {

   label="webserver";
   style=filled;
   fillcolor=olivedrab1;

   HttpServer [style="rounded", shape=box];
   Authentication [shape=box];
   Handler [shape=box];
   Session [shape=box];

}

HttpServer -> Handler [dir="both"]; Authentication -> Request [dir="both"]; Handler -> Request [dir="both"]; Handler -> Authentication [dir="both"]; Handler -> Session [dir="both"]; Session -> Request [dir="both"];

subgraph cluster_storage {

   label="storage";
   style=filled;
   fillcolor=paleturquoise1;
   Request [shape=box, style="rounded"];
   LocalStorage [shape=box];
   RemoteStorage [shape=box];
   HttpClient [shape=box];
   { rank=same; RemoteStorage; HttpClient; }

}

Request -> LocalStorage [dir="both"]; Request -> RemoteStorage [dir="both"]; RemoteStorage -> HttpClient [dir="both"];

}

Client -> HttpServer [dir="both"];

subgraph cluster_node2 { label="Node 2"; StorageNode2; } { rank=same; HttpClient; StorageNode2 [shape=box, style=filled; label="webserver", fillcolor="olivedrab1"; ]; } HttpClient -> StorageNode2 [label="http", dir="both"];

subgraph cluster_node3 { label="Node 3"; StorageNode3; } { rank=same; HttpClient; StorageNode3 [shape=box, style=filled; label="webserver", fillcolor="olivedrab1"; ]; } HttpClient -> StorageNode3 [label="http", dir="both"];

} </graphviz>