salt服务端向客户端同步grains错误一枚

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在执行salt \* saltutil.sync_grains minion.salt.com:     The minion function caused an exception: Traceback (most recent call last):       File "/usr/lib/python2.6/site-packages/salt/minion.py", line 1200, in _thread_return         return_data = func(*args, **kwargs)       File "/usr/lib/python2.6/site-packages/salt/modules/saltutil.py", line 343, in sync_grains         ret = _sync('grains', saltenv)       File "/usr/lib/python2.6/site-packages/salt/modules/saltutil.py", line 88, in _sync         saltenv = _get_top_file_envs()       File "/usr/lib/python2.6/site-packages/salt/modules/saltutil.py", line 70, in _get_top_file_envs         top = st_.get_top()       File "/usr/lib/python2.6/site-packages/salt/state.py", line 2444, in get_top         return self.merge_tops(tops)       File "/usr/lib/python2.6/site-packages/salt/state.py", line 2363, in merge_tops         for saltenv, targets in ctop.items():     AttributeError: 'str' object has no attribute 'items'

观察日志记录如下
服务端：

1	2016-02-23 12:30:41,096 [salt.master      ][ERROR   ][3138] Received minion error from [minion.salt.com]: The minion function caused an exception

客户端：

1	2016-02-02 00:46:33,058 [salt.minion                              ][WARNING ][1396] The minion function caused an exception

在客户端开启debug模式

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salt-minion -l debug 2016-02-23 12:36:10,113 [salt.loaded.int.render.yaml][DEBUG   ][1564] Results of YAML rendering: You should modify the /srv/salt/top.sls 2016-02-23 12:36:10,115 [salt.minion      ][WARNING ][1564] The minion function caused an exception Traceback (most recent call last):   File "/usr/lib/python2.6/site-packages/salt/minion.py", line 1200, in _thread_return     return_data = func(*args, **kwargs)   File "/usr/lib/python2.6/site-packages/salt/modules/saltutil.py", line 343, in sync_grains     ret = _sync('grains', saltenv)   File "/usr/lib/python2.6/site-packages/salt/modules/saltutil.py", line 88, in _sync     saltenv = _get_top_file_envs()   File "/usr/lib/python2.6/site-packages/salt/modules/saltutil.py", line 70, in _get_top_file_envs     top = st_.get_top()   File "/usr/lib/python2.6/site-packages/salt/state.py", line 2444, in get_top     return self.merge_tops(tops)   File "/usr/lib/python2.6/site-packages/salt/state.py", line 2363, in merge_tops     for saltenv, targets in ctop.items(): AttributeError: 'str' object has no attribute 'items'

很明显/srv/salt/top.sls这个文件内容有问题
清空/srv/salt/top.sls再执行

1	salt \* saltutil.sync_grains

1 2	minion.salt.com:     - grains.wlink