Question

在新稳定版本中启动资源管理器时出现以下错误。

2013-10-17 10:01:51,230 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Stopping ResourceManager metrics system...
2013-10-17 10:01:51,230 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: ResourceManager metrics system stopped.
2013-10-17 10:01:51,231 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: ResourceManager metrics system shutdown complete.
2013-10-17 10:01:51,232 FATAL org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Error starting ResourceManager
java.lang.RuntimeException: java.lang.RuntimeException: java.lang.ClassNotFoundException: Class org.apache.hadoop.yarn.server.resourcemanager.resource.DefaultResourceCalculator not found
    at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:1752)
    at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerConfiguration.getResourceCalculator(CapacitySchedulerConfiguration.java:333)
    at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.reinitialize(CapacityScheduler.java:263)
    at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.serviceInit(ResourceManager.java:249)
    at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
    at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.main(ResourceManager.java:871)
Caused by: java.lang.RuntimeException: java.lang.ClassNotFoundException: Class org.apache.hadoop.yarn.server.resourcemanager.resource.DefaultResourceCalculator not found
    at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:1720)
    at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:1744)
    ... 5 more
Caused by: java.lang.ClassNotFoundException: Class org.apache.hadoop.yarn.server.resourcemanager.resource.DefaultResourceCalculator not found
    at org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:1626)
    at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:1718)
    ... 6 more
2013-10-17 10:01:51,239 INFO org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: SHUTDOWN_MSG: 
/************************************************************
SHUTDOWN_MSG: Shutting down ResourceManager at node1/192.168.147.101

请帮忙解决这个问题。

Answer 1

我发现改变了属性

 <name>yarn.scheduler.capacity.resource-calculator</name>

到这个值

 <value>org.apache.hadoop.yarn.util.resource.DefaultResourceCalculator</value>

似乎为Hadoop 2.2.0和Hadoop 2.3.0做了诀窍。参考here。

无法启动resourcemanager

1 个答案: