[chore](conf) Set enable_advance_next_id=true by default (#44790)

Bind the generation of next_id to physical time to ensure its generation
is monotonically increasing, even if we directly overwrite the FE
metadata and then restart. This way, it supports a lossy cluster
rollback in scenarios where major version upgrades are incompatible.

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

@@ -2957,7 +2957,7 @@ public class Config extends ConfigBase {
             "Whether to advance the ID generator after becoming Master to ensure that the id "
                     + "generator will not be rolled back even when metadata is rolled back."
     })
-    public static boolean enable_advance_next_id = false;
+    public static boolean enable_advance_next_id = true;
 
     // The count threshold to do manual GC when doing checkpoint but not enough memory.
     // Set zero to disable it.

fe/fe-core/src/test/java/org/apache/doris/analysis/ExportToOutfileLogicalPlanTest.java

@@ -17,6 +17,7 @@
 
 package org.apache.doris.analysis;
 
+import org.apache.doris.common.Config;
 import org.apache.doris.common.FeConstants;
 import org.apache.doris.common.UserException;
 import org.apache.doris.load.ExportJob;
@@ -47,6 +48,12 @@ public class ExportToOutfileLogicalPlanTest extends TestWithFeService {
     private String dbName = "testDb";
     private String tblName = "table1";
 
+    private final boolean defaultEnableAdvanceNextId = Config.enable_advance_next_id; // backup
+
+    {
+        enableAdvanceNextId = false;
+    }
+
     /**
      * create a database and a table
      *
@@ -65,6 +72,7 @@ protected void runBeforeAll() throws Exception {
                 + "PARTITION p4 VALUES LESS THAN (\"50\")\n" + ")\n"
                 + " distributed by hash(k1) buckets 10\n"
                 + "properties(\"replication_num\" = \"1\");");
+        Config.enable_advance_next_id = defaultEnableAdvanceNextId; // restore
     }
 
     /**

fe/fe-core/src/test/java/org/apache/doris/common/proc/IndexesProcNodeTest.java

@@ -96,7 +96,7 @@ public void testFetchResult() throws AnalysisException {
         Assert.assertEquals(procResult.getRows().get(3).get(5), "col_4");
         Assert.assertEquals(procResult.getRows().get(3).get(11), "NGRAM_BF");
         Assert.assertEquals(procResult.getRows().get(3).get(12), "ngram_bf index on col_4");
-        Assert.assertEquals(procResult.getRows().get(3).get(13), "(\"gram_size\" = \"3\", \"bf_size\" = \"256\")");
+        Assert.assertEquals(procResult.getRows().get(3).get(13), "(\"bf_size\" = \"256\", \"gram_size\" = \"3\")");
 
     }
 }

fe/fe-core/src/test/java/org/apache/doris/service/FrontendServiceImplTest.java

@@ -55,6 +55,7 @@
 import org.junit.rules.ExpectedException;
 
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.HashMap;
 import java.util.List;
 import java.util.UUID;
@@ -231,8 +232,10 @@ public void testGetDBNames() throws Exception {
         TGetDbsResult dbNames = impl.getDbNames(params);
 
         Assert.assertEquals(dbNames.getDbs().size(), 2);
-        Assert.assertTrue(dbNames.getDbs().contains("test"));
-        Assert.assertTrue(dbNames.getDbs().contains("test_"));
+        List<String> expected = Arrays.asList("test", "test_");
+        dbNames.getDbs().sort(String::compareTo);
+        expected.sort(String::compareTo);
+        Assert.assertEquals(dbNames.getDbs(), expected);
     }
 
     @Test

fe/fe-core/src/test/java/org/apache/doris/utframe/TestWithFeService.java

@@ -140,6 +140,8 @@ public abstract class TestWithFeService {
     protected ConnectContext connectContext;
     protected boolean needCleanDir = true;
     protected int lastFeRpcPort = 0;
+    // make it default to enable_advance_next_id
+    protected boolean enableAdvanceNextId = Config.enable_advance_next_id;
 
     protected static final String DEFAULT_CLUSTER_PREFIX = "";
 
@@ -152,6 +154,8 @@ public Set<Integer> getEnableNereidsRules() {
 
     @BeforeAll
     public final void beforeAll() throws Exception {
+        // this.enableAdvanceNextId may be reset by children classes
+        Config.enable_advance_next_id = this.enableAdvanceNextId;
         FeConstants.enableInternalSchemaDb = false;
         FeConstants.shouldCreateInternalWorkloadGroup = false;
         beforeCreatingConnectContext();