我使用Hortonwork的HDP 2.2部署了hadoop集群(Spark1.2.1和Hive 0.14)
我开发了一个简单的星火应用程序,它应该检索一个Hive表的内容,执行一些操作并输出到一个文件中。Hive表是使用导入的。
当我在集群上运行应用程序时,我会得到以下异常:
ERROR log: error in initSerDe: java.lang.ClassNotFoundException Class org.apache.hadoop.hive.serde2.OpenCSVSerde not found
java.lang.ClassNotFoundException: Cla
我们已经配置了4名工作人员的Dataproc集群。集群已经启动并正在运行,每当我们尝试提交星火作业时,我们都会得到以下错误:
YarnRuntimeException: Recieved SHUTDOWN signal from Resourcemanager, Registration of NodeManager failed, Message from ResourceManager: Disallowed NodeManager
在Stackdriver日志中看到的一些消息是
Daemon YARN_NODE_MANAGER failed to restart
更新:即使我们将新的工作
我对Hadoop集群datanode故障转移有一些疑问:
1: What happen the link is down between the namenode and a datanode
(or between 2 datanodes) when the hadoop cluster is processing some data?
Does Hadoop cluster have any OOTB to recover this problem?
2: What happen one datanode is down when the hadoop cluster is