[enhance](blacklist) seperate blacklist conf from heartbeat

fe/fe-common/src/main/java/org/apache/doris/common/Config.java

@@ -1778,6 +1778,20 @@ public class Config extends ConfigBase {
     @ConfField(mutable = true, masterOnly = true)
     public static long max_backend_heartbeat_failure_tolerance_count = 1;
 
+    /**
+     * Heartbeat interval in seconds.
+     * Default is 10, which means every 10 seconds, the master will send a heartbeat to all backends.
+     */
+    @ConfField(mutable = false, masterOnly = false)
+    public static int heartbeat_interval_second = 10;
+
+    /**
+     * After a backend is marked as unavailable, it will be added to blacklist.
+     * Default is 120.
+     */
+    @ConfField(mutable = true, masterOnly = false)
+    public static int blacklist_duration_second = 120;
+
     @ConfField(mutable = true, masterOnly = false, description = {
             "禁止创建odbc, mysql, broker类型的外表", "Disallow the creation of odbc, mysql, broker type external tables"})
     public static boolean enable_odbc_mysql_broker_table = false;

fe/fe-core/src/main/java/org/apache/doris/catalog/Env.java

@@ -2399,7 +2399,7 @@ protected void runAfterCatalogReady() {
     }
 
     public void createFeDiskUpdater() {
-        feDiskUpdater = new Daemon("feDiskUpdater", FeConstants.heartbeat_interval_second * 1000L) {
+        feDiskUpdater = new Daemon("feDiskUpdater", Config.heartbeat_interval_second * 1000L) {
             @Override
             protected void runOneCycle() {
                 ExecuteEnv.getInstance().refreshAndGetDiskInfo(true);

fe/fe-core/src/main/java/org/apache/doris/common/ClientPool.java

@@ -27,7 +27,7 @@
 
 public class ClientPool {
     static GenericKeyedObjectPoolConfig heartbeatConfig = new GenericKeyedObjectPoolConfig();
-    static int heartbeatTimeoutMs = FeConstants.heartbeat_interval_second * 1000;
+    static int heartbeatTimeoutMs = Config.heartbeat_interval_second * 1000;
 
     static GenericKeyedObjectPoolConfig backendConfig = new GenericKeyedObjectPoolConfig();
 

fe/fe-core/src/main/java/org/apache/doris/common/FeConstants.java

@@ -34,7 +34,6 @@ public class FeConstants {
     public static int shortkey_max_column_count = 3;
     public static int shortkey_maxsize_bytes = 36;
 
-    public static int heartbeat_interval_second = 5;
     public static int checkpoint_interval_second = 60; // 1 minutes
 
     // dpp version

fe/fe-core/src/main/java/org/apache/doris/qe/SimpleScheduler.java

@@ -19,7 +19,6 @@
 
 import org.apache.doris.catalog.Env;
 import org.apache.doris.common.Config;
-import org.apache.doris.common.FeConstants;
 import org.apache.doris.common.Pair;
 import org.apache.doris.common.Reference;
 import org.apache.doris.common.UserException;
@@ -176,7 +175,7 @@ public static void addToBlacklist(Long backendID, String reason) {
             return;
         }
 
-        blacklistBackends.put(backendID, Pair.of(FeConstants.heartbeat_interval_second + 1, reason));
+        blacklistBackends.put(backendID, Pair.of(Config.blacklist_duration_second + 1, reason));
         LOG.warn("add backend {} to black list. reason: {}", backendID, reason);
     }
 

fe/fe-core/src/main/java/org/apache/doris/system/HeartbeatMgr.java

@@ -78,7 +78,7 @@ public class HeartbeatMgr extends MasterDaemon {
     private static volatile AtomicReference<TMasterInfo> masterInfo = new AtomicReference<>();
 
     public HeartbeatMgr(SystemInfoService nodeMgr, boolean needRegisterMetric) {
-        super("heartbeat mgr", FeConstants.heartbeat_interval_second * 1000);
+        super("heartbeat mgr", Config.heartbeat_interval_second * 1000);
         this.nodeMgr = nodeMgr;
         this.executor = ThreadPoolManager.newDaemonFixedThreadPool(Config.heartbeat_mgr_threads_num,
                 Config.heartbeat_mgr_blocking_queue_size, "heartbeat-mgr-pool", needRegisterMetric);

fe/fe-core/src/test/java/org/apache/doris/qe/SimpleSchedulerTest.java

@@ -17,7 +17,7 @@
 
 package org.apache.doris.qe;
 
-import org.apache.doris.common.FeConstants;
+import org.apache.doris.common.Config;
 import org.apache.doris.common.Reference;
 import org.apache.doris.common.UserException;
 import org.apache.doris.system.Backend;
@@ -47,7 +47,7 @@ public class SimpleSchedulerTest {
     @BeforeClass
     public static void setUp() {
         SimpleScheduler.init();
-        FeConstants.heartbeat_interval_second = 2;
+        Config.heartbeat_interval_second = 2;
         be1 = new Backend(1000L, "192.168.100.0", 9050);
         be2 = new Backend(1001L, "192.168.100.1", 9050);
         be3 = new Backend(1002L, "192.168.100.2", 9050);
@@ -139,7 +139,7 @@ public void run() {
         t3.join();
 
         Assert.assertFalse(SimpleScheduler.isAvailable(be1));
-        Thread.sleep((FeConstants.heartbeat_interval_second + 5) * 1000);
+        Thread.sleep((Config.heartbeat_interval_second + 5) * 1000);
         Assert.assertTrue(SimpleScheduler.isAvailable(be1));
     }
 
@@ -194,7 +194,7 @@ public void testGetHostAbnormal() throws UserException, InterruptedException {
             System.out.println(e.getMessage());
         }
 
-        Thread.sleep((FeConstants.heartbeat_interval_second + 5) * 1000);
+        Thread.sleep((Config.heartbeat_interval_second + 5) * 1000);
         Assert.assertNotNull(SimpleScheduler.getHost(locations.get(0).backend_id, locations, backends, ref));
     }
 }