diff --git a/.gitignore b/.gitignore
index 453680b..693c025 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,4 +9,4 @@ npm-debug.log
 tmp
 package-lock.json
 dump.rdb
-/mysql
\ No newline at end of file
+/docker/mysql/volume
\ No newline at end of file
diff --git a/docker-compose.yml b/docker-compose.yml
index 13acc56..beb5e35 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -25,7 +25,13 @@ services:
       - NODE_ENV=production
     working_dir: /app
     privileged: true
-    command: node dispatch.js
+    ###### 'sleep 30 && node scripts/init' will drop the tables
+    ###### RUN ONLY ONCE THEN REMOVE 'sleep 30 && node scripts/init'
+    command: /bin/sh -c 'sleep 30; node scripts/init; node dispatch.js'
+    # init the databases
+#    command: sleep 30 && node scripts/init && node dispatch.js
+    # without init
+#    command: node dispatch.js
     links:
       - redis
       - mysql
@@ -47,9 +53,10 @@ services:
     #ports:
     #   - 33306:3306
     volumes:
-      # change it to your own path
+      # change './docker/mysql/volume' to your own path
       # WARNING: without this line, your data will be lost.
-      - "./mysql:/var/lib/mysql"
+      - "./docker/mysql/volume:/var/lib/mysql"
+    command: mysqld --character-set-server=utf8mb4 --collation-server=utf8mb4_unicode_ci --init-connect='SET NAMES utf8mb4;' --innodb-flush-log-at-trx-commit=0
     environment:
       MYSQL_ALLOW_EMPTY_PASSWORD: "true"
       MYSQL_DATABASE: "rap2"