Adjusted network settings and added reboot

pom.xml

@@ -49,7 +49,7 @@
 		<maven-reproducible-build-plugin.version>0.17</maven-reproducible-build-plugin.version>
 		<maven-resources-plugin.version>3.3.1</maven-resources-plugin.version>
 		<maven-shade-plugin.version>3.6.0</maven-shade-plugin.version>
-		<maven-surefire-plugin.version>3.5.1</maven-surefire-plugin.version>
+		<maven-surefire-plugin.version>3.5.2</maven-surefire-plugin.version>
 		<protobuf.version>3.25.3</protobuf.version>
 		<replacer.version>1.5.3</replacer.version>
 		<simplemagic.version>1.17</simplemagic.version>

src/main/java/org/qortal/ApplyRestart.java

@@ -6,6 +6,7 @@ import org.bouncycastle.jce.provider.BouncyCastleProvider;
 import org.bouncycastle.jsse.provider.BouncyCastleJsseProvider;
 import org.qortal.api.ApiKey;
 import org.qortal.api.ApiRequest;
+import org.qortal.controller.Controller;
 import org.qortal.controller.RestartNode;
 import org.qortal.settings.Settings;
 
@@ -16,6 +17,8 @@ import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.security.Security;
 import java.util.*;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.locks.ReentrantLock;
 import java.util.stream.Collectors;
 
 import static org.qortal.controller.RestartNode.AGENTLIB_JVM_HOLDER_ARG;
@@ -57,6 +60,18 @@ public class ApplyRestart {
 		if (!shutdownNode())
 			return;
 
+		// Give some time after shutdown
+		try {
+			TimeUnit.SECONDS.sleep(10);
+		} catch (InterruptedException e) {
+			LOGGER.error("Unable to restart", e);
+		}
+
+		// Remove blockchain lock if it exist
+		ReentrantLock blockchainLock = Controller.getInstance().getBlockchainLock();
+		if (blockchainLock.isLocked())
+			blockchainLock.unlock();
+
 		// Restart node
 		restartNode(args);
 
@@ -150,9 +165,10 @@ public class ApplyRestart {
 
 		List<String> javaCmd;
 		if (Files.exists(exeLauncher)) {
-			javaCmd = Arrays.asList(exeLauncher.toString());
+			javaCmd = List.of(exeLauncher.toString());
 		} else {
 			javaCmd = new ArrayList<>();
+
 			// Java runtime binary itself
 			javaCmd.add(javaBinary.toString());
 

src/main/java/org/qortal/controller/Controller.java

@@ -489,7 +489,6 @@ public class Controller extends Thread {
 			@Override
 			public void run() {
 				Thread.currentThread().setName("Shutdown hook");
-
 				Controller.getInstance().shutdown();
 			}
 		});
@@ -569,10 +568,31 @@ public class Controller extends Thread {
 		// If GUI is enabled, we're no longer starting up but actually running now
 		Gui.getInstance().notifyRunning();
 
-		// Check every 10 minutes to see if the block minter is running
+		// Check every 10 minutes if we have enough connected peers
-		Timer timer = new Timer();
+		Timer checkConnectedPeers = new Timer();
 
-		timer.schedule(new TimerTask() {
+		checkConnectedPeers.schedule(new TimerTask() {
+			@Override
+			public void run() {
+				// Get the connected peers
+				int myConnectedPeers = Network.getInstance().getImmutableHandshakedPeers().size();
+				LOGGER.debug("Node have {} connected peers", myConnectedPeers);
+				if (myConnectedPeers == 0) {
+					// Restart node if we have 0 peers
+					LOGGER.info("Node have no connected peers, restarting node");
+					try {
+						RestartNode.attemptToRestart();
+					} catch (Exception e) {
+						LOGGER.error("Unable to restart the node", e);
+					}
+				}
+			}
+		}, 10*60*1000, 10*60*1000);
+
+		// Check every 10 minutes to see if the block minter is running
+		Timer checkBlockMinter = new Timer();
+
+		checkBlockMinter.schedule(new TimerTask() {
 			@Override
 			public void run() {
 				if (blockMinter.isAlive()) {

src/main/java/org/qortal/network/Network.java

@@ -53,7 +53,7 @@ public class Network {
     /**
      * How long between informational broadcasts to all connected peers, in milliseconds.
      */
-    private static final long BROADCAST_INTERVAL = 60 * 1000L; // ms
+    private static final long BROADCAST_INTERVAL = 30 * 1000L; // ms
     /**
      * Maximum time since last successful connection for peer info to be propagated, in milliseconds.
      */
@@ -83,12 +83,12 @@ public class Network {
             "node6.qortalnodes.live", "node7.qortalnodes.live", "node8.qortalnodes.live"
     };
 
-    private static final long NETWORK_EPC_KEEPALIVE = 10L; // seconds
+    private static final long NETWORK_EPC_KEEPALIVE = 5L; // seconds
 
     public static final int MAX_SIGNATURES_PER_REPLY = 500;
     public static final int MAX_BLOCK_SUMMARIES_PER_REPLY = 500;
 
-    private static final long DISCONNECTION_CHECK_INTERVAL = 10 * 1000L; // milliseconds
+    private static final long DISCONNECTION_CHECK_INTERVAL = 20 * 1000L; // milliseconds
 
     private static final int BROADCAST_CHAIN_TIP_DEPTH = 7; // Just enough to fill a SINGLE TCP packet (~1440 bytes)
 

src/main/java/org/qortal/settings/Settings.java

@@ -197,21 +197,21 @@ public class Settings {
 	/** Target number of outbound connections to peers we should make. */
 	private int minOutboundPeers = 32;
 	/** Maximum number of peer connections we allow. */
-	private int maxPeers = 60;
+	private int maxPeers = 64;
 	/** Number of slots to reserve for short-lived QDN data transfers */
 	private int maxDataPeers = 5;
 	/** Maximum number of threads for network engine. */
-	private int maxNetworkThreadPoolSize = 620;
+	private int maxNetworkThreadPoolSize = 512;
 	/** Maximum number of threads for network proof-of-work compute, used during handshaking. */
-	private int networkPoWComputePoolSize = 2;
+	private int networkPoWComputePoolSize = 4;
 	/** Maximum number of retry attempts if a peer fails to respond with the requested data */
-	private int maxRetries = 2;
+	private int maxRetries = 3;
 
 	/** The number of seconds of no activity before recovery mode begins */
 	public long recoveryModeTimeout = 9999999999999L;
 
 	/** Minimum peer version number required in order to sync with them */
-	private String minPeerVersion = "4.5.2";
+	private String minPeerVersion = "4.6.0";
 	/** Whether to allow connections with peers below minPeerVersion
 	 * If true, we won't sync with them but they can still sync with us, and will show in the peers list
 	 * If false, sync will be blocked both ways, and they will not appear in the peers list */