Bug #88430 mysqlfailover's health check for salve fails on windows.
Submitted: 10 Nov 2017 7:54 Modified: 10 Nov 2017 15:46
Reporter: Meiji Kimura Email Updates:
Status: Verified Impact on me:
None 
Category:MySQL Utilities Severity:S2 (Serious)
Version:1.6.5 OS:Microsoft Windows (Japanese)
Assigned to: CPU Architecture:Any

[10 Nov 2017 7:54] Meiji Kimura
Description:
On windows (maybe Japanses edition), mysqlfailover's health check for slave fails with UnicodeDecodeError.

C:\Windows\system32>"C:\Program Files\MySQL\MySQL Utilities 1.6\mysqlfailover.exe" --master=root:root@127.0.0.1 --slaves=failover:failover@17x.xx.xx.xxx --candidates=failover:failover@17x.xx.xx.xxx --force
WARNING: Using a password on the command line interface can be insecure.
# Checking privileges.
# Checking privileges on candidates.
Traceback (most recent call last):
  File "G:\ade\build\sb_0-21858576-1484679521.91\Python-2.7.6-windows-x86-32bit\lib\site-packages\cx_Freeze\initscripts\
Console.py", line 27, in <module>
  File "scripts\mysqlfailover.py", line 407, in <module>
  File ".\mysql\utilities\command\rpl_admin.py", line 713, in auto_failover
  File ".\mysql\utilities\common\topology.py", line 1605, in check_privileges
  File ".\mysql\utilities\common\topology.py", line 1745, in connect_candidate
  File ".\mysql\utilities\common\server.py", line 1098, in connect
  File ".\mysql\utilities\common\server.py", line 1178, in get_connection
  File ".\mysql\connector\__init__.py", line 179, in connect
  File ".\mysql\connector\connection.py", line 95, in __init__
  File ".\mysql\connector\abstracts.py", line 715, in connect
  File ".\mysql\connector\connection.py", line 206, in _open_connection
  File ".\mysql\connector\network.py", line 512, in open_connection
  File ".\mysql\connector\errors.py", line 185, in __init__
UnicodeDecodeError: 'ascii' codec can't decode byte 0x90 in position 6: ordinal not in range(128) 

How to repeat:
(1) Prepare Japanese Windows machine
(2) Install MySQL Utility
(3) run mysqlfailover utility with valid master and invalid slave.

C:\Windows\system32>"C:\Program Files\MySQL\MySQL Utilities 1.6\mysqlfailover.exe" --master=root:root@127.0.0.1 --slaves=failover:failover@172.30.50.220 --candidates=failover:failover@172.30.50.220 --force

On Linux platform that works well.

Suggested fix:
MySQL Utility try to deal with strings with ascii, but Japanese Windows returns start with 0x91(or 0x90) strings. it may be cp932(sjis) strings.

so MySQL Utility should be deal with error from slave in error number (or something) independent from charset of OS.