timeout settings

error

    The minion function caused an exception: Traceback (most recent call last):
      File "/usr/lib/python2.7/dist-packages/salt/minion.py", line 1039, in _thread_return
        return_data = func(*args, **kwargs)
      File "/usr/lib/python2.7/dist-packages/salt/modules/state.py", line 554, in highstate
        whitelist=kwargs.get('whitelist')
      File "/usr/lib/python2.7/dist-packages/salt/state.py", line 3077, in call_highstate
        self.load_dynamic(matches)
      File "/usr/lib/python2.7/dist-packages/salt/state.py", line 2609, in load_dynamic
        refresh=False)
      File "/usr/lib/python2.7/dist-packages/salt/modules/saltutil.py", line 532, in sync_all
        ret['grains'] = sync_grains(saltenv, False)
      File "/usr/lib/python2.7/dist-packages/salt/modules/saltutil.py", line 369, in sync_grains
        ret = _sync('grains', saltenv)
      File "/usr/lib/python2.7/dist-packages/salt/modules/saltutil.py", line 112, in _sync
        source, sub_env, include_pat=r'E@\.(pyx?|so|zip)$'
      File "/usr/lib/python2.7/dist-packages/salt/modules/cp.py", line 444, in cache_dir
        path, saltenv, include_empty, include_pat, exclude_pat
      File "/usr/lib/python2.7/dist-packages/salt/fileclient.py", line 232, in cache_dir
        for fn_ in self.file_list(saltenv):
      File "/usr/lib/python2.7/dist-packages/salt/fileclient.py", line 1142, in file_list
        return self.channel.send(load)
      File "/usr/lib/python2.7/dist-packages/salt/utils/async.py", line 73, in wrap
        ret = self._block_future(ret)
      File "/usr/lib/python2.7/dist-packages/salt/utils/async.py", line 83, in _block_future
        return future.result()
      File "/usr/lib/python2.7/dist-packages/tornado/concurrent.py", line 215, in result
        raise_exc_info(self._exc_info)
      File "/usr/lib/python2.7/dist-packages/tornado/gen.py", line 876, in run
        yielded = self.gen.throw(*exc_info)
      File "/usr/lib/python2.7/dist-packages/salt/transport/zeromq.py", line 231, in send
        ret = yield self._crypted_transfer(load, tries=tries, timeout=timeout)
      File "/usr/lib/python2.7/dist-packages/tornado/gen.py", line 870, in run
        value = future.result()
      File "/usr/lib/python2.7/dist-packages/tornado/concurrent.py", line 215, in result
        raise_exc_info(self._exc_info)
      File "/usr/lib/python2.7/dist-packages/tornado/gen.py", line 876, in run
        yielded = self.gen.throw(*exc_info)
      File "/usr/lib/python2.7/dist-packages/salt/transport/zeromq.py", line 199, in _crypted_transfer
        ret = yield _do_transfer()
      File "/usr/lib/python2.7/dist-packages/tornado/gen.py", line 870, in run
        value = future.result()
      File "/usr/lib/python2.7/dist-packages/tornado/concurrent.py", line 215, in result
        raise_exc_info(self._exc_info)
      File "/usr/lib/python2.7/dist-packages/tornado/gen.py", line 876, in run
        yielded = self.gen.throw(*exc_info)
      File "/usr/lib/python2.7/dist-packages/salt/transport/zeromq.py", line 185, in _do_transfer
        tries=tries,
      File "/usr/lib/python2.7/dist-packages/tornado/gen.py", line 870, in run
        value = future.result()
      File "/usr/lib/python2.7/dist-packages/tornado/concurrent.py", line 215, in result
        raise_exc_info(self._exc_info)
      File "<string>", line 3, in raise_exc_info
    SaltReqTimeoutError: Message timed out

etc.salt.minion

Are there other options that could prevent the error below?

tcp_keepalive: True
tcp_keepalive_idle: 75
tcp_keepalive_cnt: 9
tcp_keepalive_intvl: 75