log why a delta

1 files changed, 6 insertions, 0 deletions

diff --git a/src/swarm/sync.rs b/src/swarm/sync.rs
index 10ebf9f..94153ff 100644
--- a/src/swarm/sync.rs
+++ b/src/swarm/sync.rs
@@ -181,8 +181,14 @@ async fn deliver_sync_to_peer(state: &AppState, peer: &str) -> Result<()> {
                             peer_state.sync.nothing_to_send();
                             return None;
                         }
+                        // And why it is too large here: the threshold, lowered by the
+                        // throughput measured to the peer or a message that failed whole
+                        // to it lately (`Blobs::delta_threshold_for`).
                         info!(
                             message_bytes = payload.0.len(),
+                            threshold = delta_threshold,
+                            throughput = ?rate.map(|rate| rate as u64),
+                            failed_whole = ?failed,
                             from = spec.from.len(),
                             to = spec.to.len(),
                             "Sync message too large; offering the changes as a blob"