如何在Google Colab上运行斯坦福大学Corenlp服务器?

问题描述

我想使用stanford corenlp来获取句子的依赖解析器.为了在python中使用stanford corenlp，我们需要执行以下步骤:

I want to use stanford corenlp for obtaining dependency parser of sentences. In order to using stanford corenlp in python, we need to do the below steps:

1. 安装Java
2. 下载stanford-corenlp-full-2018-10-05并将其解压缩.
3. 使用"cd"命令将目录更改为stanford-corenlp-full-2018-10-05文件夹.
4. 在当前目录中运行以下命令:

1. Install java
2. Download stanford-corenlp-full-2018-10-05 and extract it.
3. Change directory to stanford-corenlp-full-2018-10-05 folder with "cd" command.
4. Run this command in the current directory:

之后，stanford-corenlp服务器将在' http://localhost:9000 '下运行.最后，我们可以像这样在python脚本中调用CoreNLPDependencyParser():

After that, stanford-corenlp server will run at 'http://localhost:9000' .Finally we can call CoreNLPDependencyParser() in python script like this:

dependency_parser = CoreNLPDependencyParser(url='http://localhost:9000')

现在，我想在google colab上运行stanford-corenlp服务器.我将stanford-corenlp-full-2018-10-05文件夹升级为Google驱动器并将Google驱动器安装在Google Colab上.然后我用以下功能安装了Java:

Now , i want to run stanford-corenlp server on google colab. I uplaoded stanford-corenlp-full-2018-10-05 folder to google drive and mount google drive on google colab. Then I installed java with below function :

import os       
def install_java():
  !apt-get install -y openjdk-8-jdk-headless -qq > /dev/null     
  os.environ["JAVA_HOME"] = "/usr/lib/jvm/java-8-openjdk-amd64"     
  !java -version    
install_java()

现在，我不知道如何运行上述java命令并获取本地主机地址.

Now, i don't know how run aforementioned java command and gain localhost address.

有什么办法吗?

推荐答案

要从远程计算机连接到在Google Colab上运行的服务器，您需要使用 ngrok .

To connect from a remote machine to a server running on Google Colab, you need to use ngrok.

假设您的服务器正在现有的笔记本上运行，请创建一个新的笔记本并运行以下代码(我从此处):

Assuming your server is running on an existing notebook, create a new notebook and run the following code (which I found from here):

import os
import subprocess
import json
import time
import requests


def _get_ngrok_tunnel():
    while True:
        try:
            tunnels_json = requests.get("http://localhost:4040/api/tunnels").content
            public_url = json.loads(tunnels_json)['tunnels'][0]['public_url']
            return public_url
        except Exception:
            print("Can't get public url, retrying...")
            time.sleep(2)


def _warmup_ngrok_tunnel(public_url):
    while requests.get(public_url).status_code >= 500:
        print("Tunnel is not ready, retrying...")
        time.sleep(2)


def expose_port_on_colab(port):
    os.system("apt-get install net-tools")
    # check that port is open
    while not (":{} ".format(port) in str(subprocess.check_output("netstat -vatn", shell=True))):
        print("Port {} is closed, retrying...".format(port))
        time.sleep(2)

    # run ngrok
    os.system("wget https://bin.equinox.io/c/4VmDzA7iaHb/ngrok-stable-linux-amd64.zip")
    os.system("unzip ngrok-stable-linux-amd64.zip")
    os.system("./ngrok http {0} &".format(port))
    public_url = _get_ngrok_tunnel()
    _warmup_ngrok_tunnel(public_url)

    print("Open {0} to access your {1} port".format(public_url, port))

然后使用服务器正在侦听的端口调用expose_port_on_colab函数，该函数将为您提供一个可用于连接到服务器的URL

Then invoke expose_port_on_colab function with the port that the server is listening to, this function will give you a URL that you can use to connect to the server

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