Cause of KeyError: '_errors' when running salt state.highstate

Question

将以下内容添加到我的 minion 支柱文件后：

monit:
  services:
    - name: elasticsearch
      pid: /var/run/elasticsearch/elasticsearch.pid
      start_script: /etc/init.d/elasticsearch start
      start_script: /etc/init.d/elasticsearch stop
      port: 9200

当我尝试 运行 highstate 时开始收到以下错误：

root@salt-master:/home/me# salt 'my-minion-id' state.highstate -t 300
my-minion-id:
  The minion function caused an exception: Traceback (most recent call last):
    File "/usr/lib/python2.7/dist-packages/salt/minion.py", line 1482, in _thread_return
      return_data = executor.execute()
    File "/usr/lib/python2.7/dist-packages/salt/executors/direct_call.py", line 28, in execute
      return self.func(*self.args, **self.kwargs)
    File "/usr/lib/python2.7/dist-packages/salt/modules/state.py", line 848, in highstate
      err += __pillar__['_errors']
    File "/usr/lib/python2.7/dist-packages/salt/utils/context.py", line 211, in __getitem__
      return self._dict()[key]
  KeyError: '_errors'

Answer 1

这个错误很烦人，但事实证明这是因为我的 pillar 文件包含一个带有重复键的字典：

monit:
  services:
    - name: elasticsearch
      ...
      start_script: /etc/init.d/elasticsearch start
      start_script: /etc/init.d/elasticsearch stop
      ...

应该是：

monit:
  services:
    - name: elasticsearch
      ...
      start_script: /etc/init.d/elasticsearch start
      stop_script: /etc/init.d/elasticsearch stop
      ...

希望这有助于节省时间！