编辑 2017-03-31：Zachary 说 gcloud 148.0.0 解决了这个问题。所以尝试一下gcloud components update. see https://stackoverflow.com/users/4922212/zachary-newman
tl;dr
事实证明socket.gethostbyaddr(socket.gethostname())很慢.localmacOS 中的主机名。
$ python -i
>>> socket.gethostname()
'hiroshi-MacBook.local'
>>> socket.gethostbyaddr(socket.gethostname()) # it takes about 5 seconds
('localhost', ['1.0.0.127.in-addr.arpa'], ['127.0.0.1'])
因此，为了解决此问题，只需将主机名添加到 /etc/hosts 的 localhost 行即可。
127.0.0.1 localhost hiroshi-Macbook.local
之后的返回值就不同了，但是都是瞬间返回。
>>> socket.gethostbyaddr(socket.gethostname())
('localhost', ['1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa'], ['::1'])
我如何到达那里
其中 gcloud 命令是：
$ which gcloud
/Users/hiroshi/google-cloud-sdk/bin/gcloud
编辑 shell 脚本的结束行...
...
+ echo "$CLOUDSDK_PYTHON" $CLOUDSDK_PYTHON_ARGS "${CLOUDSDK_ROOT_DIR}/lib/gcloud.py" "$@"
"$CLOUDSDK_PYTHON" $CLOUDSDK_PYTHON_ARGS "${CLOUDSDK_ROOT_DIR}/lib/gcloud.py" "$@"
回显 gcloud.py 的位置：
$ gcloud
python2.7 -S /Users/hiroshi/google-cloud-sdk/lib/gcloud.py
好的。谁花5秒时间？
$ python2.7 -S -m cProfile -s time /Users/hiroshi/google-cloud-sdk/lib/gcloud.py
173315 function calls (168167 primitive calls) in 5.451 seconds
Ordered by: internal time
ncalls tottime percall cumtime percall filename:lineno(function)
1 5.062 5.062 5.062 5.062 {_socket.gethostbyaddr}
...
_socket.gethostbyaddr is.
函数调用和回溯的参数是什么样的？
我在 main() 之前添加了一些行gcloud.py
import traceback
def mygethostbyaddr(addr):
print addr
traceback.print_stack()
return addr
import socket
socket.gethostbyaddr = mygethostbyaddr
再次执行 gcloud。
我知道这是我机器的 .local 名称。
$ gcloud
hiroshi-MacBook.local
File "/Users/hiroshi/google-cloud-sdk/lib/gcloud.py", line 74, in <module>
main()
File "/Users/hiroshi/google-cloud-sdk/lib/gcloud.py", line 70, in main
sys.exit(googlecloudsdk.gcloud_main.main())
File "/Users/hiroshi/google-cloud-sdk/lib/googlecloudsdk/gcloud_main.py", line 121, in main
metrics.Started(START_TIME)
File "/Users/hiroshi/google-cloud-sdk/lib/googlecloudsdk/core/metrics.py", line 411, in Wrapper
return func(*args, **kwds)
File "/Users/hiroshi/google-cloud-sdk/lib/googlecloudsdk/core/metrics.py", line 554, in Started
collector = _MetricsCollector.GetCollector()
File "/Users/hiroshi/google-cloud-sdk/lib/googlecloudsdk/core/metrics.py", line 139, in GetCollector
_MetricsCollector._instance = _MetricsCollector()
File "/Users/hiroshi/google-cloud-sdk/lib/googlecloudsdk/core/metrics.py", line 197, in __init__
hostname = socket.getfqdn()
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/socket.py", line 141, in getfqdn
hostname, aliases, ipaddrs = gethostbyaddr(name)
File "/Users/hiroshi/google-cloud-sdk/lib/gcloud.py", line 32, in mygethostbyaddr
traceback.print_stack()
