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Spark程序提交到Yarn集群时所遇异常

Exception 1:当我们将任务提交给Spark Yarn集群时,大多会出现以下异常,如下:

14/08/09 11:45:32 WARN component.AbstractLifeCycle: FAILED SelectChannelConnector@0.0.0.0:4040: java.net.BindException: Address already in usejava.net.BindException: Address already in use        at sun.nio.ch.Net.bind0(Native Method)        at sun.nio.ch.Net.bind(Net.java:444)        at sun.nio.ch.Net.bind(Net.java:436)

Reason:端口被占用(In fact, 集群试图选择另外一个端口,所以该异常无大碍,Just Warning级别)

Solution: http://blog.csdn.net/sunflower_cao/article/details/37655873

 

Exception 2:

WARNYarnClientClusterScheduler: Initial job has not accepted any resources;check your cluster UI to ensure that workers are registered and havesufficient memory

Reason:提交任务的节点不能和spark工作节点交互,因为提交完任务后提交任务节点上会起一个进程,展示任务进度,大多端口为4044,工作节点需要反馈进度给该端口,所以如果主机名或者IP在hosts中配置不正确,就会报上述error

 

Spark程序提交到Yarn集群时所遇异常