SOSI-DCC WSP WSC Kø. DccServlet Dispatcher RedoTimer Listener SaxParser.

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Wait-free coordination for Internet-scale systems

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Presentation transcript:

SOSI-DCC WSP WSC Kø

DccServlet Dispatcher RedoTimer Listener SaxParser

Synchronous Dispatcher DccService Call 1. Start Worker 2. Vent på svar Kald WSP 3. Svar eller timeout

Asynchronous Dispatcher DccService Call 1. Start Worker 4. ’queued’ status svar Kald WSP Asynchronous Replier Redo kø 3. Start Replier 2. Sæt på køa. Fjern fra kø b. Vent på WSP svar c. Asynkront svar Svar kø

Asynchronous Dispatcher DccService Call 1. Start Worker Kald WSP Asynchronous Replier Redo kø 3. Start Replier 2. Sæt på kø Timeout eller netværksfejlsvar 4. ’queued’ status svar

QueueAfterTimeout Dispatcher DccService Call 1. Start Worker 2. Vent på svar Kald WSP 3. Svar

QueueAfterTimeout Dispatcher DccService Call 1. Start Worker 5. ’queued’ status svar Kald WSP Asynchronous Replier Redo kø 4. Start Replier 3. Sæt på køa. Fjern fra kø b. Vent på WSP svar 2. Timeout c. Asynkront svar Svar kø

Redo Dispatcher DccService Call 3. Start Worker Kald WSP Asynchronous Replier Redo kø 4. Start Replier a. Fjern fra kø b. Vent på WSP svar RedoTimer Listener 1. Læs fra kø 2. Kald c. Asynkront svar Svar kø

Redo Dispatcher DccService Call 3. Start Worker Kald WSP Asynchronous Replier Redo kø 4. Start Replier Timeout eller netværksfejl RedoTimer Listener 1. Læs fra kø 2. Kald

Applikations server SOSI-DCC JMS provider Redo kø Svar kø CommonJ provider Timer Mgr Work Mgr WSC WSP

Applikations server SOSI-DCC JMS provider Redo kø Svar kø CommonJ provider Timer Mgr Work Mgr WSC WSP Proxy