web.pyのsession.DiskStore concurrency問題

web.pyのsession.DiskStore concurrency問題の対策

A possible solution is to update session.DiskStore.setitem to become:

def __setitem__(self, key, value):
  path = self._get_path(key)
  pickled = self.encode(value)
  try:
    tname = path+"."+threading.current_thread().getName()
    f = open(tname, 'w')
    try:
      f.write(pickled)
    finally:
      f.close()
      os.rename(tname, path) # atomary operation
  except IOError:
    pass

by HansWeltar

https://github.com/webpy/webpy/issues/191

コメントを残す

メールアドレスは公開されません。