使用Capacity Scheduler在Hadoop集群中设置队列

Question

我试着设置了3个队列。为此，我配置了CapacityScheduler.xml，如下所示。但在此之后，jobtracker将关闭。我还将这些队列的名称添加到mapred-site.xml中。任何人都知道原因。

enter code here

*<!-- queue: BatchJobs-Queue -->
<property>
  <name>mapred.capacity-scheduler.queue.BatchJobsQueue.capacity</name>
  <value>70</value>
</property>
<property>
  <name>mapred.capacity-scheduler.queue.BatchJobsQueue.supports-priority</name>
  <value>false</value>
</property>
<property>
  <name>mapred.capacity-scheduler.queue.BatchJobsQueue.minimum-user-limit-percent</name>
  <value>20</value>
</property>
<property>
  <name>mapred.capacity-scheduler.queue.BatchJobsQueue.user-limit-factor</name>
  <value>1</value>
</property>
<property>
  <name>mapred.capacity-scheduler.queue.BatchJobsQueue.maximum-initialized-active-tasks</name>
  <value>200000</value>
</property>
<property>
  <name>mapred.capacity-scheduler.queue.BatchJobsQueue.maximum-initialized-active-tasks-per-user</name>
  <value>100000</value>
</property>
<property>
  <name>mapred.capacity-scheduler.queue.BatchJobsQueue.init-accept-jobs-factor</name>
  <value>10</value>
</property>

    enter code here

<!-- queue: AdHocJobs-Queue -->
<property>
  <name>mapred.capacity-scheduler.queue.AdHocJobsQueue.capacity</name>
  <value>20<value>
</property>
<property>
  <name>mapred.capacity-scheduler.queue.AdHocJobsQueue.supports-priority</name>
  <value>false</value>
</property>
<property>
  <name>mapred.capacity-scheduler.queue.AdHocJobsQueue.minimum-user-limit-percent</name>
  <value>20</value>
</property>
<property>
  <name>mapred.capacity-scheduler.queue.AdHocJobsQueue.user-limit-factor</name>
  <value>1</value>
</property>
<property>
  <name>mapred.capacity-scheduler.queue.AdHocJobsQueue.maximum-initialized-active-tasks</name>
  <value>200000</value>
</property>
<property>
  <name>mapred.capacity-scheduler.queue.AdHocJobsQueue.maximum-initialized-active-tasks-per-user</name>
  <value>100000</value>
</property>
<property>
  <name>mapred.capacity-scheduler.queue.AdHocJobsQueue.init-accept-jobs-factor</name>
  <value>10</value>
</property>

    enter code here

<!-- queue: MyQueue  -->
<property>
  <name>mapred.capacity-scheduler.queue.MyQueue.capacity</name>
  <value>10<value>
</property>
<property>
  <name>mapred.capacity-scheduler.queue.MyQueue.supports-priority</name>
  <value>false</value>
</property>
<property>
  <name>mapred.capacity-scheduler.queue.MyQueue.minimum-user-limit-percent</name>
  <value>20</value>
</property>
<property>
  <name>mapred.capacity-scheduler.queue.MyQueue.user-limit-factor</name>
  <value>1</value>
</property>
<property>
  <name>mapred.capacity-scheduler.queue.MyQueue.maximum-initialized-active-tasks</name>
  <value>200000</value>
</property>
<property>
  <name>mapred.capacity-scheduler.queue.MyQueue.maximum-initialized-active-tasks-per-user</name>
  <value>100000</value>
</property>
<property>
  <name>mapred.capacity-scheduler.queue.MyQueue.init-accept-jobs-factor</name>
  <value>10</value>
</property>*

enter code here

Answer 1

您的作业跟踪器日志的输出是什么？

假设您正在运行linux，请尝试运行以下命令：

ls -lrt /var/log/hadoop/mapred/ | grep jobtracker | tail -n1 | awk '{print $9}' | xargs -I{} tail -n40 /var/log/hadoop/mapred/{}