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问题描述
我需要从hadoop集群连接到sftp服务器.我想知道是否有一种方法可以从存储在hdfs中的私钥加载身份.实际上,似乎JSch对象仅接受本地路径:
I need to connect to an sftp server from an hadoop cluster. I would like to know if there is a way to load an identity from a private key stored in hdfs. Actually it seems that the JSch object accepts only a local path:
try { String privateKeyPath = "hdfs://namenode:8020/path/to/privatekey"; // need this one to be an hdfs path JSch jsch = new JSch(); jsch.addIdentity(privateKeyPath); // [..] } catch (Exception ex) { // [..] }有什么主意吗?
推荐答案感谢@Martin Prikryl的回答,解决方法如下:
Thanks to @Martin Prikryl answer, solved as following:
// Get sftp private/public key for JSch identity FSDataInputStream fis = fs.open(privateKeyPath); byte[] privateKeyBytes = IOUtils.toByteArray(fis); fis = fs.open(publicKeyPath); byte[] publicKeyBytes = IOUtils.toByteArray(fis); fis.close(); JSch jsch = new JSch(); String idName = "ksftp"; byte[] passphrase = null; jsch.addIdentity(idName, privateKeyBytes, publicKeyBytes, passphrase);更多推荐
JSch:从存储在hdfs上的私钥获取addIdentity
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