diff options
| -rw-r--r-- | src/net.cpp | 4 | ||||
| -rw-r--r-- | src/net.h | 11 |
2 files changed, 12 insertions, 3 deletions
diff --git a/src/net.cpp b/src/net.cpp index 883e57bdf0..dc34743c5b 100644 --- a/src/net.cpp +++ b/src/net.cpp @@ -904,10 +904,10 @@ bool CConnman::AttemptToEvictConnection() // Protect the 8 nodes with the lowest minimum ping time. // An attacker cannot manipulate this metric without physically moving nodes closer to the target. EraseLastKElements(vEvictionCandidates, ReverseCompareNodeMinPingTime, 8); - // Protect 4 nodes that most recently sent us transactions. + // Protect 4 nodes that most recently sent us novel transactions accepted into our mempool. // An attacker cannot manipulate this metric without performing useful work. EraseLastKElements(vEvictionCandidates, CompareNodeTXTime, 4); - // Protect 4 nodes that most recently sent us blocks. + // Protect 4 nodes that most recently sent us novel blocks. // An attacker cannot manipulate this metric without performing useful work. EraseLastKElements(vEvictionCandidates, CompareNodeBlockTime, 4); // Protect the half of the remaining nodes which have been connected the longest. @@ -932,8 +932,17 @@ public: // Used for headers announcements - unfiltered blocks to relay std::vector<uint256> vBlockHashesToAnnounce GUARDED_BY(cs_inventory); - // Block and TXN accept times + /** UNIX epoch time of the last block received from this peer that we had + * not yet seen (e.g. not already received from another peer), that passed + * preliminary validity checks and was saved to disk, even if we don't + * connect the block or it eventually fails connection. Used as an inbound + * peer eviction criterium in CConnman::AttemptToEvictConnection. */ std::atomic<int64_t> nLastBlockTime{0}; + + /** UNIX epoch time of the last transaction received from this peer that we + * had not yet seen (e.g. not already received from another peer) and that + * was accepted into our mempool. Used as an inbound peer eviction criterium + * in CConnman::AttemptToEvictConnection. */ std::atomic<int64_t> nLastTXTime{0}; // Ping time measurement: |