No, what Lambda does is take your equivalent of CGI script, init it once and reuse the snapshot afterwards. It is completely oblivious to the process. As far as

No, what Lambda does is take your equivalent of CGI script, init it once and reuse the snapshot afterwards. It is completely oblivious to the process. As far as it is concerned, your script is just "take this from STDIN, do the magic, write on STDOUT and exit". There is no notion of keepalive because the script itself isn't supposed to stay alive. All the magic happens in the execution of the script.