Salt發佈2014.7.0後，及時進行了更新，測試下來，在上一版本正常運行的操作，這一版本卻出現報錯。公司的好多服務由於歷史原因，配置文件延續下來，使用的是gb2312編碼，其中還有中文註釋。在使用salt進行管理的時候，在Master端會報UnicodeDecodeError錯誤。
執行配置文件更新，並重啓服務操作：
salt 'zhaogb-202' state.sls update_conf.manager
manager.sls是更新Manager服務配置文件的模板：
ma_watch: service: - name: ManagerServerd - running - reload: True - watch: - file: /home/ManagerServer/config.xml /home/ManagerServer/config.xml: file.managed: - source: salt://dzh_store/conf_file/ManagerServer/config.xml - user: root - group: root - mode: 644 - backup: minion
執行該更新操作後，會報如下錯誤：
[ERROR ] An un-handled exception was caught by salt's global exception handler:
UnicodeDecodeError: 'utf8' codec can't decode byte 0xca in position 18: invalid continuation byte
Traceback (most recent call last):
File "/usr/bin/salt", line 10, in <module>
salt_main()
File "/usr/lib/python2.6/site-packages/salt/scripts.py", line 240, in salt_main
client.run()
File "/usr/lib/python2.6/site-packages/salt/cli/__init__.py", line 189, in run
self._output_ret(ret_, out)
File "/usr/lib/python2.6/site-packages/salt/cli/__init__.py", line 243, in _output_ret
salt.output.display_output(ret, out, self.config)
File "/usr/lib/python2.6/site-packages/salt/output/__init__.py", line 44, in display_output
display_data = get_printout(out, opts)(data).rstrip()
File "/usr/lib/python2.6/site-packages/salt/output/highstate.py", line 74, in output
return _format_host(host, hostdata)[0]
File "/usr/lib/python2.6/site-packages/salt/output/highstate.py", line 118, in _format_host
schanged, ctext = _format_changes(ret['changes'])
File "/usr/lib/python2.6/site-packages/salt/output/highstate.py", line 340, in _format_changes
__opts__)
File "/usr/lib/python2.6/site-packages/salt/output/__init__.py", line 121, in out_format
return get_printout(out, opts)(data).rstrip()
File "/usr/lib/python2.6/site-packages/salt/output/nested.py", line 124, in output
return nest.display(ret, __opts__.get('nested_indent', 0), '', '')
File "/usr/lib/python2.6/site-packages/salt/output/nested.py", line 115, in display
out = self.display(val, indent + 4, '', out)
File "/usr/lib/python2.6/site-packages/salt/output/nested.py", line 90, in display
prefix=prefix)
File "/usr/lib/python2.6/site-packages/salt/output/nested.py", line 59, in ustring
indent, color, prefix, msg.decode(encoding), endc, suffix)
File "/usr/lib64/python2.6/encodings/utf_8.py", line 16, in decode
return codecs.utf_8_decode(input, errors, True)
UnicodeDecodeError: 'utf8' codec can't decode byte 0xca in position 18: invalid continuation byte
Traceback (most recent call last):
File "/usr/bin/salt", line 10, in <module>
salt_main()
File "/usr/lib/python2.6/site-packages/salt/scripts.py", line 240, in salt_main
client.run()
File "/usr/lib/python2.6/site-packages/salt/cli/__init__.py", line 189, in run
self._output_ret(ret_, out)
File "/usr/lib/python2.6/site-packages/salt/cli/__init__.py", line 243, in _output_ret
salt.output.display_output(ret, out, self.config)
File "/usr/lib/python2.6/site-packages/salt/output/__init__.py", line 44, in display_output
display_data = get_printout(out, opts)(data).rstrip()
File "/usr/lib/python2.6/site-packages/salt/output/highstate.py", line 74, in output
return _format_host(host, hostdata)[0]
File "/usr/lib/python2.6/site-packages/salt/output/highstate.py", line 118, in _format_host
schanged, ctext = _format_changes(ret['changes'])
File "/usr/lib/python2.6/site-packages/salt/output/highstate.py", line 340, in _format_changes
__opts__)
File "/usr/lib/python2.6/site-packages/salt/output/__init__.py", line 121, in out_format
return get_printout(out, opts)(data).rstrip()
File "/usr/lib/python2.6/site-packages/salt/output/nested.py", line 124, in output
return nest.display(ret, __opts__.get('nested_indent', 0), '', '')
File "/usr/lib/python2.6/site-packages/salt/output/nested.py", line 115, in display
out = self.display(val, indent + 4, '', out)
File "/usr/lib/python2.6/site-packages/salt/output/nested.py", line 90, in display
prefix=prefix)
File "/usr/lib/python2.6/site-packages/salt/output/nested.py", line 59, in ustring
indent, color, prefix, msg.decode(encoding), endc, suffix)
File "/usr/lib64/python2.6/encodings/utf_8.py", line 16, in decode
return codecs.utf_8_decode(input, errors, True)
UnicodeDecodeError: 'utf8' codec can't decode byte 0xca in position 18: invalid continuation byte執行返回報錯，但是Minion端配置文件已經更新，並且服務重啓載入新的配置文件。也就是說，這個報錯產生在Master端，對Minion沒有影響。所有操作都在上一個版本（2014.1.0）驗證過，沒有任何問題。排查下來，找到
/usr/lib/python2.6/site-packages/salt/output/nested.py
這個文件，與上一個版本相比，增加了一個ustring方法,其中定義了一個帶默認值encoding='utf-8'參數，問題就出現在這裏。
2014.7.0 nested.py
由於我的配置文件採用gb2312編碼，所以在對msg進行decode操作時使用utf-8會報錯，再增加一個try,except調試來解決這個問題，修改後的代碼如下：
也就是修改了except，再做一次判斷。
至此，這個問題暫時解決了，無論是utf-8配置文件，還是gb2312配置文件，都通過，不確定是否會影響Salt本身的功能。