kylin異常整理

1.運行一段時間hadoop連接被拒絕

異常信息

java.io.IOException: java.net.ConnectException: 
Call From kylin/192.168.19.132 to 0.0.0.0:10020 failed on connection exception: 
java.net.ConnectException: 拒絕連接; 
For more details see:  http://wiki.apache.org/hadoop/ConnectionRefused
	at org.apache.hadoop.mapred.ClientServiceDelegate.invoke(ClientServiceDelegate.java:334)
	at org.apache.hadoop.mapred.ClientServiceDelegate.getJobStatus(ClientServiceDelegate.java:419)
	at org.apache.hadoop.mapred.YARNRunner.getJobStatus(YARNRunner.java:532)
	at org.apache.hadoop.mapreduce.Job$1.run(Job.java:314)
	at org.apache.hadoop.mapreduce.Job$1.run(Job.java:311)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:422)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1614)
	at org.apache.hadoop.mapreduce.Job.updateStatus(Job.java:311)
	at org.apache.hadoop.mapreduce.Job.getStatus(Job.java:329)
	at org.apache.kylin.engine.mr.common.HadoopJobStatusChecker.checkStatus(HadoopJobStatusChecker.java:38)
	at org.apache.kylin.engine.mr.common.MapReduceExecutable.doWork(MapReduceExecutable.java:153)
	at org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:163)
	at org.apache.kylin.job.execution.DefaultChainedExecutable.doWork(DefaultChainedExecutable.java:69)
	at org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:163)
	at org.apache.kylin.job.impl.threadpool.DefaultScheduler$JobRunner.run(DefaultScheduler.java:113)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.net.ConnectException:
 Call From kylin/192.168.19.132 to 0.0.0.0:10020 
 failed on connection exception: java.net.ConnectException: 拒絕連接; For more details see:  http://wiki.apache.org/hadoop/ConnectionRefused
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:783)
	at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:730)
	at org.apache.hadoop.ipc.Client.call(Client.java:1415)
	at org.apache.hadoop.ipc.Client.call(Client.java:1364)
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206)
	at com.sun.proxy.$Proxy81.getJobReport(Unknown Source)
	at org.apache.hadoop.mapreduce.v2.api.impl.pb.client.MRClientProtocolPBClientImpl.
	getJobReport(MRClientProtocolPBClientImpl.java:133)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.apache.hadoop.mapred.ClientServiceDelegate.invoke(ClientServiceDelegate.java:320)
	... 18 more
Caused by: java.net.ConnectException: 拒絕連接
	at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
	at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
	at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:529)
	at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:493)
	at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:606)
	at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:700)
	at org.apache.hadoop.ipc.Client$Connection.access$2800(Client.java:367)
	at org.apache.hadoop.ipc.Client.getConnection(Client.java:1463)
	at org.apache.hadoop.ipc.Client.call(Client.java:1382)
	... 27 more

可以看到異常的產生是由於與hadoop的連接失敗導致，查看hadoop的運行狀態各個節點運行正常，這是由於hadoop的歷史服務器沒有配置和開啓

• 配置歷史服務器,在yarn-site.xml上添加如此配置

[root@Kylin hadoop]# vim yarn-site.xml
<!--歷史服務器配置-->
<property>
<name>mapreduce.jobhistory.address</name>
 <value>kylin:10020</value>
</property>
<property>
<name>mapreduce.jobhistory.webapp.address</name>
<value>kylin:19888</value>
</property>

• 啓動歷史服務器

[root@kylin sbin]# mr-jobhistory-daemon.sh start historyserver
starting historyserver, logging to /opt/install/hadoop-2.9.2/logs/mapred-root-historyserver-kylin.out

• 重新運行，解決問題