Fixed ping processing.

Changed the limit of active connections from 10 to 15.

src/commons/constants.rs

@@ -44,4 +44,4 @@ pub const LOG_REFRESH_DELAY_SEC: u64 = 60;
 pub const POLL_TIMEOUT: Option<Duration> = Some(Duration::from_millis(250));
 pub const MAX_PACKET_SIZE: usize = 1 * 1024 * 1024; // 1 Mb
 pub const MAX_READ_BLOCK_TIME: u128 = 500;
-pub const MAX_NODES: usize = 10;
+pub const MAX_NODES: usize = 15;