Merge pull request #3808 from actiontech/inner-2234&2336

[inner-2334&2336&2337] add memory and random a mysql contrast lowerCase logic
actiontech · Sep 6, 2023 · 322ea21 · 322ea21
2 parents 341fdcd + c25da26
commit 322ea21
Showing 1 changed file with 10 additions and 2 deletions.
diff --git a/src/main/java/com/actiontech/dble/services/manager/response/ReloadConfig.java b/src/main/java/com/actiontech/dble/services/manager/response/ReloadConfig.java
@@ -348,14 +348,22 @@ private static SystemVariables checkVersionAGetSystemVariables(ConfigInitializer
             //check packetSize/lowerCase
             ConfigUtil.getAndSyncKeyVariables(changeItemList, true);
             //keep the original system variables
-            newSystemVariables = DbleServer.getInstance().getSystemVariables();
+            SystemVariables memorySystemVariables = DbleServer.getInstance().getSystemVariables();
+            SystemVariables currentSystemVariables = getSystemVariablesFromdbGroup(loader, loader.getDbGroups());
+            int memoryLowerCase = memorySystemVariables.isLowerCaseTableNames() ? 1 : 0;
+            if (memorySystemVariables.isLowerCaseTableNames() != currentSystemVariables.isLowerCaseTableNames()) { // check if the lowerCase of the backend has changed
+                throw new Exception("Dble memory's lowercase value is " + memoryLowerCase + ", " +
+                        "But it was found that the lower_case_table_names value of the dbInstance is not " + memoryLowerCase + ". " +
+                        "Please unify dbInstances's lower_case_table_names or use 'reload @@config_all -r;'");
+            } else {
+                newSystemVariables = memorySystemVariables;
+            }
         }
         ReloadLogHelper.briefInfo("check and get system variables from random node end");
         return newSystemVariables;
     }
 
 
-
     /**
      * test connection
      */