我在hadoop-2.7.0上运行了一个mapreduce作业,但是mapreduce作业无法启动,我遇到了以下错误:Exit code: 1 at org.apache.hadoop.util.Shell.runCommand(Shell.java:545)
at org.apache.hadoop<
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 <