Question

我正在使用EMR-5.9.0，在更改了一些配置文件之后，我想重新启动服务以查看效果。我怎样才能做到这一点？

我尝试使用initctl列表找到服务的名称，正如我在其他答案中看到的那样，但没有运气......

Answer 1

由于Spark作为Hadoop Yarn上的应用程序运行，您可以尝试

 sudo stop hadoop-yarn-resourcemanager  
 sudo start hadoop-yarn-resourcemanager

如果您的意思是Spark History Server，那么您可以使用

 sudo stop spark-history-server  
 sudo start spark-history-server

可以使用

检查服务的状态

sudo status hadoop-yarn-resourcemanager
sudo status spark-history-server

Answer 2

在5.x EMR群集中，您还可以执行以下操作：

[hadoop@ip-10-0-2-93 conf]$ initctl list | grep yarn
hadoop-yarn-timelineserver start/running, process 10632
hadoop-yarn-resourcemanager start/running, process 10771
hadoop-yarn-proxyserver start/running, process 10508

[hadoop@ip-10-0-2-93 conf]$ sudo stop hadoop-yarn-resourcemanager
hadoop-yarn-resourcemanager stop/waiting

[hadoop@ip-10-0-2-93 conf]$ sudo start hadoop-yarn-resourcemanager
hadoop-yarn-resourcemanager start/running, process 1591

[hadoop@ip-10-0-2-93 conf]$ initctl list | grep yarn
hadoop-yarn-timelineserver start/running, process 10632
hadoop-yarn-resourcemanager start/running, process 1591
hadoop-yarn-proxyserver start/running, process 10508

如何在更改conf设置后重新启动EMR中的Spark服务？

2 个答案: