20-09-27 the project is migrated to Alibaba toss record (the network card order makes the service unable to connect to DB through haproxy)

Unable to connect to database

telnet Report errors Connection closed by foreign host

telnet IP Address   port 
Trying IP Address ...
Connected to IP Address .
Escape character is '^]'.
Y
5.5.5-10.1.33-MariaDBFv`\0v'[t!? W8Oc&3j?:F2fmysql_native_password
^CConnection closed by foreign host.

# notes  ip Address is the load address   port 

This error message indicates that you have connected ,    stay haproxy backward telnet normal

modify mariadb haproxy To configure

 listen mariadb_writes_ZW245
         bind 10.2.40.250:13304
         mode tcp
-        option tcp-check
-        tcp-check expect string MySQL\ master
+        #option tcp-check
+        #tcp-check expect string MySQL\ master
 #       balance roundrobin
-        default-server port 9200 inter 2s fall 3 rise 3 on-marked-down shut
+        #default-server port 9200 inter 2s fall 3 rise 3 on-marked-down shu
         #server ZW-ZQWY-MySQL-01 10.9.38.250:13304
-        server ZQWY-MySQL-01 10.2.40.245:3306    check    
-        server ZQWY-MySQL-02 10.2.40.246:3306    check backup
+