几乎每次我运行厨房与ec2驱动程序汇合时，它都能够创建服务器并建立一个ssh连接，但是在检测到厨师综合安装后，它会尝试传输文件，但失败并出现无用的错误。我尝试过使用不同版本的net-ssh并重新安装chefdk。我已经得到它成功收敛一次可能30次，并无法弄清楚有什么区别。
还有其他人遇到过这个问题吗？
-----> Starting Kitchen (v1.10.2)
-----> Creating <default-rhel7>...
If you are not using an account that qualifies under the AWS
free-tier, you may be charged to run these suites. The charge
should be minimal, but neither Test Kitchen nor its maintainers
are responsible for your incurred costs.
Instance <i-167bf188> requested.
Polling AWS for existence, attempt 0...
Attempting to tag the instance, 0 retries
EC2 instance <i-167bf188> created.
Waited 0/600s for instance <i-167bf188> to become ready.
Waited 5/600s for instance <i-167bf188> to become ready.
Waited 10/600s for instance <i-167bf188> to become ready.
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Waited 55/600s for instance <i-167bf188> to become ready.
EC2 instance <i-167bf188> ready.
Waiting for SSH service on 10.254.105.26:22, retrying in 3 seconds
Waiting for SSH service on 10.254.105.26:22, retrying in 3 seconds
Waiting for SSH service on 10.254.105.26:22, retrying in 3 seconds
[SSH] Established
Finished creating <default-rhel7> (1m56.70s).
-----> Converging <default-rhel7>...
Preparing files for transfer
Preparing dna.json
Preparing current project directory as a cookbook
Removing non-cookbook files before transfer
Preparing validation.pem
Preparing client.rb
-----> Chef Omnibus installation detected (install only if missing)
Transferring files to <default-rhel7>
C:/Users/AlexKiaie/AppData/Local/chefdk/gem/ruby/2.1.0/gems/net-ssh-3.2.0/lib/net/ssh/ruby_compat.rb:25:in `select': closed stream (IOError)
from C:/Users/AlexKiaie/AppData/Local/chefdk/gem/ruby/2.1.0/gems/net-ssh-3.2.0/lib/net/ssh/ruby_compat.rb:25:in `io_select'
from C:/Users/AlexKiaie/AppData/Local/chefdk/gem/ruby/2.1.0/gems/net-ssh-3.2.0/lib/net/ssh/transport/packet_stream.rb:75:in `available_for_read?'
from C:/Users/AlexKiaie/AppData/Local/chefdk/gem/ruby/2.1.0/gems/net-ssh-3.2.0/lib/net/ssh/transport/packet_stream.rb:87:in `next_packet'
from C:/Users/AlexKiaie/AppData/Local/chefdk/gem/ruby/2.1.0/gems/net-ssh-3.2.0/lib/net/ssh/transport/session.rb:193:in `block in poll_message'
from C:/Users/AlexKiaie/AppData/Local/chefdk/gem/ruby/2.1.0/gems/net-ssh-3.2.0/lib/net/ssh/transport/session.rb:188:in `loop'
from C:/Users/AlexKiaie/AppData/Local/chefdk/gem/ruby/2.1.0/gems/net-ssh-3.2.0/lib/net/ssh/transport/session.rb:188:in `poll_message'
from C:/Users/AlexKiaie/AppData/Local/chefdk/gem/ruby/2.1.0/gems/net-ssh-3.2.0/lib/net/ssh/connection/session.rb:474:in `dispatch_incoming_packets'
from C:/Users/AlexKiaie/AppData/Local/chefdk/gem/ruby/2.1.0/gems/net-ssh-3.2.0/lib/net/ssh/connection/session.rb:225:in `preprocess'
from C:/Users/AlexKiaie/AppData/Local/chefdk/gem/ruby/2.1.0/gems/net-ssh-3.2.0/lib/net/ssh/connection/session.rb:206:in `process'
from C:/Users/AlexKiaie/AppData/Local/chefdk/gem/ruby/2.1.0/gems/net-ssh-3.2.0/lib/net/ssh/connection/session.rb:170:in `block in loop'
from C:/Users/AlexKiaie/AppData/Local/chefdk/gem/ruby/2.1.0/gems/net-ssh-3.2.0/lib/net/ssh/connection/session.rb:170:in `loop'
from C:/Users/AlexKiaie/AppData/Local/chefdk/gem/ruby/2.1.0/gems/net-ssh-3.2.0/lib/net/ssh/connection/session.rb:170:in `loop'
from C:/Users/AlexKiaie/AppData/Local/chefdk/gem/ruby/2.1.0/gems/net-ssh-3.2.0/lib/net/ssh/connection/session.rb:119:in `close'
from C:/opscode/chefdk/embedded/lib/ruby/gems/2.1.0/gems/test-kitchen-1.10.2/lib/kitchen/transport/ssh.rb:115:in `close'
from C:/opscode/chefdk/embedded/lib/ruby/gems/2.1.0/gems/test-kitchen-1.10.2/lib/kitchen/transport/ssh.rb:97:in `cleanup!'
from C:/opscode/chefdk/embedded/lib/ruby/gems/2.1.0/gems/test-kitchen-1.10.2/lib/kitchen/instance.rb:274:in `cleanup!'
from C:/opscode/chefdk/embedded/lib/ruby/gems/2.1.0/gems/test-kitchen-1.10.2/lib/kitchen/command.rb:209:in `run_action_in_thread'
from C:/opscode/chefdk/embedded/lib/ruby/gems/2.1.0/gems/test-kitchen-1.10.2/lib/kitchen/command.rb:173:in `block (2 levels) in run_action'
from C:/opscode/chefdk/embedded/lib/ruby/gems/2.1.0/gems/logging-2.1.0/lib/logging/diagnostic_context.rb:450:in `call'
from C:/opscode/chefdk/embedded/lib/ruby/gems/2.1.0/gems/logging-2.1.0/lib/logging/diagnostic_context.rb:450:in `block in create_with_logging_context'
我有一个类似的问题。经过大量的挖掘，我在/ var / log / secure中找到了一条有趣的消息 -
“localhost sshd [1081]：错误：没有更多会话”。
默认情况下，SSHD允许10个会话;这些不会记录在会话中。如果由于某种原因导致会话未正确关闭或打开，您将收到此错误。
然后我进入我的.kitchen.yml并添加：
max_ssh_sessions: 1
到运输部门。所以它现在看起来像：
transport:
ssh_key: ./kitchen.pem
# need to get this key from vault, then place it on the kitchen ecs container
connection_timeout: 10
connection_retries: 5
max_ssh_sessions: 1
username: centos
当我运行测试厨房时，它明显变慢。但是，它100％的工作时间。我认为正在发生的是，厨房正在打开多个SSH会话，以加快所需工具的安装。例如yum为ansible / git / whatever和/tmp/install.sh为chef。
希望这有助于某人。我花了一点时间才发现。