SSH连接错误-权限被拒绝(公钥)

问题描述

我正在尝试使用 https://github.com/amplab在AWS上运行Spark集群/spark-ec2 .

我已经生成了密钥和登录凭据，并且正在使用以下命令:

I've generated a key and and login credentials, and I'm using this command:

./spark-ec2 --key-pair=octavianKey4 --identity-file=credentials3.csv --region=eu-west-1 --zone=eu-west-1c launch my-instance-name

但是，我一直得到这个:

However, I keep getting this:

Warning: SSH connection error. (This could be temporary.)
Host: mec2-myHostNumber.eu-west-1.compute.amazonaws.com
SSH return code: 255
SSH output: Warning: Permanently added 'ec2-myHostNumber.eu-west-1.compute.amazonaws.com,myHostNumber' (ECDSA) to the list of known hosts.
Permission denied (publickey).

如果我退出控制台，然后再次尝试启动群集，则会得到以下提示:

If I quit the console and then try to start the cluster again, I get this:

Setting up security groups...

Searching for existing cluster my-instance-name in region eu-west-1...
Found 1 master, 1 slave.
ERROR: There are already instances running in group my-instance-name-master or my-instance-name-slaves

推荐答案

是否可以在spark-ec2命令中添加--resume并尝试?您的奴隶可能没有钥匙. --resume将确保已将其传输到从站.

Can you add --resume to your spark-ec2 command and try? Your slave may not have the key. --resume will make sure it is transferred to the slave.

在EC2上运行Spark

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