Thanks Varun, Where shall I check to resolve it?
Regards, Tariq On Mon, Feb 23, 2015 at 4:07 AM, Varun Kumar <varun....@gmail.com> wrote: > Hi Tariq, > > Issues looks like DNS configuration issue. > > > On Sun, Feb 22, 2015 at 3:51 PM, tesm...@gmail.com <tesm...@gmail.com> > wrote: > >> I am getting java.net.UnknownHost exception continuously on one node >> Hadoop MApReduce execution. >> >> That node is accessible via SSH. This node is shown in "yarn node -list" >> and "hadfs dfsadmin -report" queries. >> >> Below is the log from execution.... >> >> 15/02/22 20:17:42 INFO mapreduce.Job: Task Id : >> attempt_1424622614381_0008_m_000043_0, Status : FAILED >> Container launch failed for container_1424622614381_0008_01_000016 : >> java.lang.IllegalArgumentException: *java.net.UnknownHostException: >> 101-master10* >> at >> org.apache.hadoop.security.SecurityUtil.buildTokenService(SecurityUtil.java:373) >> at >> org.apache.hadoop.security.SecurityUtil.setTokenService(SecurityUtil.java:352) >> at >> org.apache.hadoop.yarn.util.ConverterUtils.convertFromYarn(ConverterUtils.java:237) >> at >> org.apache.hadoop.yarn.client.api.impl.ContainerManagementProtocolProxy$ContainerManagementProtocolProxyData.newProxy(ContainerManagementProtocolProxy.java:218) >> at >> org.apache.hadoop.yarn.client.api.impl.ContainerManagementProtocolProxy$ContainerManagementProtocolProxyData.<init>(ContainerManagementProtocolProxy.java:196) >> at >> org.apache.hadoop.yarn.client.api.impl.ContainerManagementProtocolProxy.getProxy(ContainerManagementProtocolProxy.java:117) >> at >> org.apache.hadoop.mapreduce.v2.app.launcher.ContainerLauncherImpl.getCMProxy(ContainerLauncherImpl.java:403) >> at >> org.apache.hadoop.mapreduce.v2.app.launcher.ContainerLauncherImpl$Container.launch(ContainerLauncherImpl.java:138) >> at >> org.apache.hadoop.mapreduce.v2.app.launcher.ContainerLauncherImpl$EventProcessor.run(ContainerLauncherImpl.java:369) >> at >> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) >> at >> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) >> at java.lang.Thread.run(Thread.java:745) >> *Caused by: java.net.UnknownHostException: 101-master10* >> ... 12 more >> >> >> >> 15/02/22 20:17:44 INFO >> >> Regards, >> Tariq >> > > > > -- > Regards, > Varun Kumar.P >
