Removed tight restrictions of blocks sync. Sped up initial sync a lot.

src/commons/constants.rs

@@ -40,8 +40,8 @@ pub const UI_REFRESH_DELAY_MS: u128 = 500;
 pub const LOG_REFRESH_DELAY_SEC: u64 = 60;
 
 pub const POLL_TIMEOUT: Option<Duration> = Some(Duration::from_millis(500));
-/// We start syncing blocks only when we got 8 and more connected nodes
-pub const MIN_CONNECTED_NODES_START_SYNC: usize = 8;
+/// We start syncing blocks only when we got 4 and more connected nodes
+pub const MIN_CONNECTED_NODES_START_SYNC: usize = 4;
 pub const MAX_RECONNECTS: u32 = 5;
 pub const MAX_IDLE_SECONDS: u64 = 180;
 pub const MAX_NODES: usize = 15;

src/p2p/peers.rs

@@ -282,7 +282,7 @@ impl Peers {
         // If someone has more blocks we sync
         if nodes >= MIN_CONNECTED_NODES_START_SYNC {
             if height < max_height {
-                let count = min(max_height - height, (nodes - 5) as u64);
+                let count = min(max_height - height, nodes as u64);
                 self.ask_blocks_from_peers(registry, height, height + count, have_blocks);
             }
         }