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* Current caching mechanism does not update cluster-nodes when the epoch (and so epoch staked nodes) changes: https://github.com/solana-labs/solana/blob/19bd30262/core/src/broadcast_stage/standard_broadcast_run.rs#L332-L344 * Additionally, the cache update has a concurrency bug in which the thread which does compare_and_swap may be blocked when it tries to obtain the write-lock on cache, while other threads will keep running ahead with the outdated cache (since the atomic timestamp is already updated). In the new ClusterNodesCache, entries are keyed by epoch, and so if epoch changes cluster-nodes will be recalculated. The time-to-live eviction policy is also encapsulated and rigidly enforced. |
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| build.rs | ||