[fix](cluster key) support fuzzy random_add_cluster_keys_for_mow conf…

…ig (#44485)

support fuzzy set fe config for `random_add_cluster_keys_for_mow` by
add:
```
use_fuzzy_conf=true
fuzzy_test_type=daily or rqg
```

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

@@ -2180,7 +2180,7 @@ public class Config extends ConfigBase {
      * only for certain test type. E.g. only settting batch_size to small
      * value for p0.
      */
-    @ConfField(mutable = true, masterOnly = false, options = {"p0"})
+    @ConfField(mutable = true, masterOnly = false, options = {"p0", "daily", "rqg"})
     public static String fuzzy_test_type = "";
 
     /**
@@ -2189,6 +2189,12 @@ public class Config extends ConfigBase {
     @ConfField(mutable = true, masterOnly = false)
     public static boolean use_fuzzy_session_variable = false;
 
+    /**
+     * Set config variables randomly to check more issues in github workflow
+     */
+    @ConfField(mutable = true, masterOnly = false)
+    public static boolean use_fuzzy_conf = false;
+
     /**
      * Max num of same name meta informatntion in catalog recycle bin.
      * Default is 3.

fe/fe-core/src/main/java/org/apache/doris/DorisFE.java

@@ -61,6 +61,7 @@
 import java.nio.channels.FileLock;
 import java.nio.channels.OverlappingFileLockException;
 import java.nio.file.StandardOpenOption;
+import java.time.LocalDate;
 import java.util.concurrent.TimeUnit;
 
 public class DorisFE {
@@ -162,6 +163,8 @@ public static void start(String dorisHomeDir, String pidDir, String[] args, Star
                 System.exit(-1);
             }
 
+            fuzzyConfigs();
+
             LOG.info("Doris FE starting...");
 
             FrontendOptions.init();
@@ -529,6 +532,16 @@ public static void overwriteConfigs() {
         }
     }
 
+    private static void fuzzyConfigs() {
+        if (!Config.use_fuzzy_conf) {
+            return;
+        }
+        if (Config.fuzzy_test_type.equalsIgnoreCase("daily") || Config.fuzzy_test_type.equalsIgnoreCase("rqg")) {
+            Config.random_add_cluster_keys_for_mow = (LocalDate.now().getDayOfMonth() % 2 == 0);
+            LOG.info("fuzzy set random_add_cluster_keys_for_mow={}", Config.random_add_cluster_keys_for_mow);
+        }
+    }
+
     public static class StartupOptions {
         public boolean enableHttpServer = true;
         public boolean enableQeService = true;