Starting namenodes on [hadoop101] hadoop101: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password). Starting datanodes hadoop101: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password). hadoop103: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password). hadoop102: ERROR: JAVA_HOME is not set and could not be found. Starting secondary namenodes [hadoop103] hadoop103: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).
时间: 2023-08-19 20:06:41 浏览: 69
这些错误提示涉及到了权限和环境配置方面的问题。我将逐个解释并提供一些解决方法:
1. "Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password)" 错误提示表示 SSH 连接被拒绝。这可能是因为你没有正确配置 SSH 密钥认证或密码身份验证。请确保你具有正确的 SSH 密钥,并且在连接时使用正确的用户名和密码。你可以使用 `ssh-keygen` 命令生成 SSH 密钥对,然后将公钥添加到目标主机上的 `~/.ssh/authorized_keys` 文件中。
2. "ERROR: JAVA_HOME is not set and could not be found" 错误提示表示找不到或未设置 JAVA_HOME 环境变量。在启动 Hadoop 之前,确保你已经正确设置了 JAVA_HOME 环境变量,并且它指向了你的 Java 安装目录。你可以在终端中运行 `echo $JAVA_HOME` 命令来检查是否已设置 JAVA_HOME 变量。
3. "Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password)" 错误提示同样是 SSH 连接被拒绝的问题。请确保你已经正确配置了目标主机的 SSH 密钥认证或密码身份验证,并且使用正确的用户名和密码进行连接。
请根据上述解决方案逐个解决问题,并确保你的配置和权限设置正确。如果问题仍然存在,请提供更多详细信息,以便我可以提供更准确的帮助。
相关问题
Starting namenodes on [hadoop101] hadoop101: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password). Starting datanodes
Starting namenodes on [hadoop101] means that the process of starting the namenodes on the machine named "hadoop101" is being initiated. However, in the given message, there seems to be a permission issue. The error message "Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password)" indicates that the user does not have the necessary permissions to start the namenodes.
To resolve this issue, you can try the following steps:
1. Check if you have the correct permissions to start the namenodes on the machine.
2. Ensure that you have the necessary authentication methods configured, such as public key authentication or password authentication.
3. Verify that the SSH keys are properly set up for the user attempting to start the namenodes.
4. If you are using a password for authentication, make sure you are entering the correct password.
If you are still facing issues after trying these steps, please provide more details about your setup and any specific error messages you are encountering.
Starting nodemanagers hadoop103: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password). hadoop102: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password). hadoop104: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).
这个错误信息可能是由于您在尝试连接到Hadoop集群的节点时,SSH密钥验证失败导致的。您可以尝试以下几个步骤来解决这个问题:
1. 确保您使用的是正确的用户名和密码。
2. 确认您已经将SSH公钥添加到了目标节点上的~/.ssh/authorized_keys文件中。
3. 确认您的SSH客户端正在使用正确的私钥文件来进行身份验证。
4. 确认您的Hadoop集群中的节点都已经正确地设置了SSH密钥验证。
如果您还是无法解决这个问题,您可以尝试联系您的系统管理员或者Hadoop集群管理员来获取更多的帮助。