985280ec0b
Inspecting TDS gossip table shows that crds values of nodes with different shred-versions are creeping in. Their epoch-slots are accumulated in ClusterSlots causing bogus slots very far from current root which are not purged and so cause ClusterSlots keep consuming more memory: https://github.com/solana-labs/solana/issues/17789 https://github.com/solana-labs/solana/issues/14366#issuecomment-769896036 https://github.com/solana-labs/solana/issues/14366#issuecomment-832754654 This commit updates ClusterInfo::get_epoch_slots, and discards entries from nodes with unknown or different shred-version. Follow up commits will patch gossip not to waste bandwidth and memory over crds values of nodes with different shred-version.