this name is not a host name ,it is NN HA service name, behind the name ,is two NN box, one for active node , one for standby node
On Wed, Nov 5, 2014 at 7:41 PM, Jagannath Naidu < jagannath.na...@fosteringlinux.com> wrote: > > > On 5 November 2014 14:49, ch huang <justlo...@gmail.com> wrote: > >> hi,maillist: >> i set namenode HA in my HDFS cluster,but seems pig can not know it >> ,why? >> >> 2014-11-05 14:34:54,710 [JobControl] INFO >> org.apache.hadoop.mapreduce.JobSubmitter - Cleaning up the staging area >> file:/tmp/hadoop-root/mapred/staging/root1861403840/.staging/job_local1861403840_0001 >> 2014-11-05 14:34:54,716 [JobControl] WARN >> org.apache.hadoop.security.UserGroupInformation - >> PriviledgedActionException as:root (auth:SIMPLE) >> cause:org.apache.pig.backend.executionengine.ExecException: ERROR 2118: >> java.net.UnknownHostException: develop >> > > unknown host exception, this can be the issue. Check that the host is > discoverable either form dns or from hosts. > > >> 2014-11-05 14:34:54,717 [JobControl] INFO >> org.apache.hadoop.mapreduce.lib.jobcontrol.ControlledJob - >> PigLatin:DefaultJobName got an error while submitting >> org.apache.pig.backend.executionengine.ExecException: ERROR 2118: >> java.net.UnknownHostException: develop >> at >> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigInputFormat.getSplits(PigInputFormat.java:288) >> at >> org.apache.hadoop.mapreduce.JobSubmitter.writeNewSplits(JobSubmitter.java:493) >> at >> org.apache.hadoop.mapreduce.JobSubmitter.writeSplits(JobSubmitter.java:510) >> at >> org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:394) >> at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1295) >> at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1292) >> at java.security.AccessController.doPrivileged(Native Method) >> at javax.security.auth.Subject.doAs(Subject.java:415) >> at >> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1554) >> at org.apache.hadoop.mapreduce.Job.submit(Job.java:1292) >> at >> org.apache.hadoop.mapreduce.lib.jobcontrol.ControlledJob.submit(ControlledJob.java:335) >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >> at >> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) >> at >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) >> at java.lang.reflect.Method.invoke(Method.java:606) >> at >> org.apache.pig.backend.hadoop23.PigJobControl.submit(PigJobControl.java:128) >> at >> org.apache.pig.backend.hadoop23.PigJobControl.run(PigJobControl.java:191) >> at java.lang.Thread.run(Thread.java:744) >> at >> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher$1.run(MapReduceLauncher.java:270) >> Caused by: java.lang.IllegalArgumentException: >> java.net.UnknownHostException: develop >> at >> org.apache.hadoop.security.SecurityUtil.buildTokenService(SecurityUtil.java:377) >> at >> org.apache.hadoop.hdfs.NameNodeProxies.createNonHAProxy(NameNodeProxies.java:237) >> at >> org.apache.hadoop.hdfs.NameNodeProxies.createProxy(NameNodeProxies.java:141) >> at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:576) >> at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:521) >> at >> org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:146) >> at >> org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2397) >> at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:89) >> at >> org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2431) >> at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2413) >> at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:368) >> at org.apache.hadoop.fs.Path.getFileSystem(Path.java:296) >> at >> org.apache.hcatalog.mapreduce.HCatBaseInputFormat.setInputPath(HCatBaseInputFormat.java:326) >> at >> org.apache.hcatalog.mapreduce.HCatBaseInputFormat.getSplits(HCatBaseInputFormat.java:127) >> at >> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigInputFormat.getSplits(PigInputFormat.java:274) >> ... 18 more >> Caused by: java.net.UnknownHostException: develop >> ... 33 more >> >> > > > -- > > Jaggu Naidu >
