4 prompts · 103 messages · 40 tool calls · 0 commits · 1 pages
Create an emulated distributed system "ec-counter" that consists of two types of nodes: servers and clients. Each server maintains an integer counter, and allows clients to get the current counter value or set them. When a client sets a value, the server should update its local value if (and only if) the client supplied value is larger than the one the server already contains. Client nodes take a server's Subject as input and then generate 100 random requests. Each request can be a get or a set, set requests should use a random value. Finally, the servers should periodically synchronize counter values with each other, thus ensuring that eventually, in the absense of client set requests, they will all end up with the same counter value and that this value is the largest value that any of them had. Clients should not communicate with each other.
It stops when current == stop, so range(1, 3, ...) gives [1, 2] — only 2 servers. The old list.range was inclusive. I need to use int.range(1, num_servers + 1, ...).
Also, with only 2 servers, each gets 1 peer registered (correct), but 5 clients with server_index = (i-1) % 2 — client-3 would try index 2 which is out of range. Let me fix the range endpoints.
Done. Here's a summary of the ec-counter emulation:
ec_counter/src/ec_counter/server.gleam — Server actor that maintains an integer counter. Handles:Get — returns current counter valueSet(value) — updates counter only if value > currentSyncValue(value) — accepts peer sync, same "max wins" ruleDoSync — periodically broadcasts counter to all peers (every 100ms)SetPeers — registers other servers for synchronization
ec_counter/src/ec_counter/client.gleam — Client actor that sends 100 random requests (get or set with random value 0–999) to its assigned server
ec_counter/src/ec_counter.gleam — Main entry point, reads config.toml for num_servers/num_clients, starts servers, wires up peer lists, assigns clients round-robin, then waits and verifies convergence
ec_counter/config.toml — Default config: 3 servers, 5 clients