python - 应用程序无法在 GAE 上运行 - 'unable to bind to localhost:0'

Question

我最近将 Google App Engine 升级到了 1.7.7。并且从那以后一直无法在本地运行任何应用程序。这包括在更新之前工作的应用程序和我此后创建的应用程序。我没有遇到任何其他关于这个特定问题“无法绑定(bind)到 localhost:0”的引用，因此非常感谢您对清除这个障碍的任何见解。

我今天添加了一个新的“Hello World”应用程序的日志。在 OS X 10.6.8 上通过 ActivePython 使用 Python 2.7。

*** Running dev_appserver with the following flags:
    --skip_sdk_update_check=yes --port=12084 --admin_port=8007
Python command: /usr/local/bin/pythonw
INFO     2013-04-13 06:37:31,627 devappserver2.py:498] Skipping SDK update check.
WARNING  2013-04-13 06:37:31,691 api_server.py:328] Could not initialize images API; you are likely missing the Python "PIL" module.
WARNING  2013-04-13 06:37:31,692 simple_search_stub.py:977] Could not read search indexes from /var/folders/ag/ag25hkLMFEG1p0pLBBX5Mk+++TI/-Tmp-/appengine.binderror.b/search_indexes
Traceback (most recent call last):
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/dev_appserver.py", line 193, in <module>
    _run_file(__file__, globals())
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/dev_appserver.py", line 189, in _run_file
    execfile(script_path, globals_)
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 662, in <module>
    main()
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 655, in main
    dev_server.start(options)
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 626, in start
    apis.start()
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/devappserver2/api_server.py", line 151, in start
    super(APIServer, self).start()
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/devappserver2/wsgi_server.py", line 296, in start
    raise BindError('Unable to bind %s:%s' % self.bind_addr)
google.appengine.tools.devappserver2.wsgi_server.BindError: Unable to bind localhost:0

更新:我能够通过 GAE 启动器部署“Hello World”应用程序而没有任何问题。我运行了命令 errinfo -c -n GoogleAppEngineLauncher.app，它使用了包含的 dtrace，然后尝试运行三个应用程序，然后关闭它们。这是输出[这有点超出我的理解]:

           EXEC          SYSCALL  ERR  COUNT  DESC
 GoogleAppEngine          madvise   12      1  Cannot allocate memory 
 GoogleAppEngine __disable_threadsignal    0      2 
 GoogleAppEngine           access    0      3 
 GoogleAppEngine bsdthread_register   22      3  Invalid argument 
 GoogleAppEngine            chdir    0      3 
 GoogleAppEngine   close_nocancel    0      3 
 GoogleAppEngine   fcntl_nocancel    0      3 
 GoogleAppEngine             fork    0      3 
 GoogleAppEngine    getdtablesize    0      3 
 GoogleAppEngine           getpid    0      3 
 GoogleAppEngine    open_nocancel    0      3 
 GoogleAppEngine           setsid    0      3 
 GoogleAppEngine      sigprocmask    0      3 
 GoogleAppEngine           stat64    0      3 
 GoogleAppEngine            wait4    0      3 
 GoogleAppEngine       workq_open    0      3 
 GoogleAppEngine            write    0      3 
 GoogleAppEngine          lstat64    0      4 
 GoogleAppEngine             pipe    0      6 
 GoogleAppEngine    thread_selfid    0      6 
 GoogleAppEngine     gettimeofday    0      7 
 GoogleAppEngine             dup2    0      9 
 GoogleAppEngine          madvise    0     17 
 GoogleAppEngine           munmap    0     31 
 GoogleAppEngine             mmap    0     33 
 GoogleAppEngine        sigaction    0     87 
 GoogleAppEngine      getattrlist    0    102 
 GoogleAppEngine          fstat64    0    118 
 GoogleAppEngine             open    0    118 
 GoogleAppEngine          geteuid    0    208 
 GoogleAppEngine              dup    0  10418 
 GoogleAppEngine             read    0  10532 
 GoogleAppEngine            close    0  10584 
 GoogleAppEngine workq_kernreturn    0  20752 
 GoogleAppEngine            close    9  21459  Bad file descriptor 
 GoogleAppEngine           kevent    0  72543 

8 月 16 日更新 2:我安装了最新版本的 GAE Launcher [1.8.3]，现在一切正常。

Answer 1

对于在运行 fuser -k 8080/tcp 时得到 Unknown key 的人，这里有一个对我有用的解决方案:

lsof -P | grep ':8080' | awk '{print $2}' | xargs kill -9