Connector Corner: Accelerate revenue generation using UiPath API-centric busi...
Network and distributed systems
1. Lecture 3 – Networks and Distributed Systems CSE 490h – Introduction to Distributed Computing, Spring 2007 Except as otherwise noted, the content of this presentation is licensed under the Creative Commons Attribution 2.5 License.
6. Example: Web Server (1/3) The server creates a listener socket attached to a specific port. 80 is the agreed-upon port number for web traffic.
7. Example: Web Server (2/3) The client-side socket is still connected to a port, but the OS chooses a random unused port number When the client requests a URL (e.g., “www.google.com”), its OS uses a system called DNS to find its IP address.
8. Example: Web Server (3/3) Server chooses a randomly-numbered port to handle this particular client Listener is ready for more incoming connections, while we process the current connection in parallel
Object marshalling: do you eagerly or lazily send pointed-to objects? (Eager can cut down on latency, but lazy saves bandwidth… 1 GB lists are too much to send. Maybe send out to a certain horizon of depth of object pointed-ness?) Error conditions: type errors / fn not found / version mismatches / network connectivity issues + Do you stop running RPC hosts? + Keep running and save results to a designated file? + If the client disconnects at some point after RPC host is finished, do we roll back our state changes?
ASK: Can the lock of B can be pushed to after we write to table A? (Yes) Go over why this still maintains isolation
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