a0551b4054
The repair-peers cache is reset each time repair service loop runs, and so computed repeatedly for the same slots: https://github.com/solana-labs/solana/blob/d2b07dca9/core/src/repair_service.rs#L275 This commit uses an LRU cache to persists repair-peers for each slot. In addition to LRU eviction rules, in order to avoid re-using outdated data, each entry also has 10 seconds TTL.