# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
+import socket
import paramiko
from paramiko import RSAKey
import StringIO
format(self._ssh.get_transport().getpeername()))
logger.debug('Connections: {0}'.format(str(SSH.__existing_connections)))
+ def disconnect(self, node):
+ """Close SSH connection to the node.
+
+ :param node: The node to disconnect from.
+ :type node: dict
+ """
+ node_hash = self._node_hash(node)
+ if node_hash in SSH.__existing_connections:
+ ssh = SSH.__existing_connections.pop(node_hash)
+ ssh.close()
+
def exec_command(self, cmd, timeout=10):
"""Execute SSH command on a new channel on the connected Node.
self._ssh.get_transport().getpeername(), end-start))
stdout = ""
- while True:
- buf = chan.recv(self.__MAX_RECV_BUF)
- stdout += buf
- if not buf:
- break
+ try:
+ while True:
+ buf = chan.recv(self.__MAX_RECV_BUF)
+ stdout += buf
+ if not buf:
+ break
+ except socket.timeout:
+ logger.error('Caught timeout exception, current contents '
+ 'of buffer: {0}'.format(stdout))
+ raise
+
stderr = ""
while True: