
AppHash
Real-time state non-determinism & consensus monitoring
What it does
apphash.io helps Cosmos SDK chain developers debug app hash mismatches (state non-determinism) by making application state divergence visible. When a mismatch happens, the chain halts, but finding where state diverged usually requires manual RPC diffing and log analysis. apphash.io shows which SDK module produced a different state root and the exact key-value differences inside that module across nodes, turning blind debugging into a concrete, inspectable problem.
Does a similar job
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- WAWhirlwind – Async concurrent hashmap for Rust2024 · github.com · ▲140
Hey HN, this is Will and David from Fortress (https://news.ycombinator.com/item?id=41426998). We use a lot of async Rust internally, and created this library out of a need for an async-aware concurrent hashmap since there weren’t many available in the Rust ecosystem. Whirlwind is a sharded HashMap with a fully asynchronous API. Just as dashmap is a replacement for std::sync::RwLock, whirlwind aims to be a replacement for tokio::sync::RwLock. It has a similar design and performance characteristics to dashmap, but seems to perform better in read-heavy workloads with tokio's…


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