ARNING: Attempting to start all Apache Hadoop daemons as hadoop in 10 seconds. WARNING: This is not a recommended production deployment configuration. WARNING: Use CTRL-C to abort. Starting namenodes on [vm1] vm1: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password). Starting datanodes localhost: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password). vm3: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password). vm1: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password). vm2: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password). Starting secondary namenodes [vm1] vm1: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password). Starting resourcemanager Starting nodemanagers vm3: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password). vm1: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password). vm2: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password). localhost: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password). [hadoop@vm1 sbin]$ jps bash: jps: 未找到命令... [hadoop@vm1 sbin]$ jps什么解决
时间: 2023-09-28 12:06:54 浏览: 107
这段代码看起来是在尝试启动Apache Hadoop的各个服务,但是出现了权限问题导致启动失败。出现Permission denied错误可能是由于SSH密钥未正确设置,或者是Hadoop用户的权限不足所致。您可以尝试以下解决方法:
1. 检查SSH密钥是否正确设置,确保能够通过SSH连接到所有的主机。
2. 检查Hadoop用户是否拥有足够的权限,可以尝试将其添加到sudoers列表中。
3. 确保所有主机上的防火墙已正确配置,允许Hadoop服务之间的通信。
4. 重新启动Hadoop服务,并检查日志文件以查看是否有其他错误信息。
如果以上方法都无法解决问题,您可以尝试在Hadoop用户的.bashrc文件中添加以下内容:
export JAVA_HOME=/path/to/java/home
export HADOOP_HOME=/path/to/hadoop/home
export HADOOP_MAPRED_HOME=$HADOOP_HOME
export HADOOP_COMMON_HOME=$HADOOP_HOME
export HADOOP_HDFS_HOME=$HADOOP_HOME
export YARN_HOME=$HADOOP_HOME
然后重新登录Hadoop用户并尝试启动服务。
相关问题
使用pycharm ARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.
PyCharm是一款由JetBrains开发的Python集成开发环境(IDE),它提供了丰富的功能和工具,支持多种开发框架、版本控制工具和数据库。使用PyCharm可以更方便地进行Python代码编写、调试、测试和部署。
关于您提到的WARNING,这是因为当您在使用PyCharm内置的服务器运行您的应用程序时,它会在终端输出这样的警告信息。这是因为内置服务器只适用于开发环境,而不适用于生产环境。在生产环境中,您需要使用WSGI服务器来部署您的应用程序。
如果您想在PyCharm中使用WSGI服务器来部署您的应用程序,可以在PyCharm中安装WSGI插件,并按照插件的说明进行配置。具体使用方法可以参考PyCharm的官方文档或者相关教程。
arning in install.packages : package ‘affy’ is not available (for R version 3.6.1)
This error message means that the affy package is not currently available for the version of R that you are running (3.6.1).
There are a few possible solutions you can try:
1. Update R to a more recent version. The affy package may be available for a newer version of R. You can download the latest version of R from the CRAN website (https://cran.r-project.org/).
2. Check if the package is available on Bioconductor. The affy package is part of the Bioconductor project, which provides a collection of R packages for analyzing and visualizing biological data. You can try installing the package using the following command:
```{r}
if (!requireNamespace("BiocManager", quietly = TRUE))
install.packages("BiocManager")
BiocManager::install("affy")
```
3. If all else fails, you can try installing an older version of the package that is compatible with your version of R. You can find older versions of the package on the Bioconductor website (https://bioconductor.org/packages/release/bioc/html/affy.html).
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