can u check your config? host appears twice 01hw357381.tcsgegdc.com: 01hw357381.tcsgegdc.com it shd be hostname:port
also once you correct this, you do a nslookup on the host to make sure its identified by the hive client On Thu, Jul 9, 2015 at 7:19 PM, Ajeet O <ajee...@tcs.com> wrote: > Hi All , I have installed Hadoop 2.0 , Hive 0.12 on Cent OS 7. > > When I run a query in Hive - select count(*) from u_data ; it gives > following errors. , However I can run select * from u_data ; pls help. > > hive> select count(*) from u_data; > Total MapReduce jobs = 1 > Launching Job 1 out of 1 > Number of reduce tasks determined at compile time: 1 > In order to change the average load for a reducer (in bytes): > set hive.exec.reducers.bytes.per.reducer=<number> > In order to limit the maximum number of reducers: > set hive.exec.reducers.max=<number> > In order to set a constant number of reducers: > set mapred.reduce.tasks=<number> > java.net.UnknownHostException: 01hw357381.tcsgegdc.com: > 01hw357381.tcsgegdc.com: unknown error > at java.net.InetAddress.getLocalHost(InetAddress.java:1484) > at > org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:439) > at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1296) > at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1293) > 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:1628) > at org.apache.hadoop.mapreduce.Job.submit(Job.java:1293) > at org.apache.hadoop.mapred.JobClient$1.run(JobClient.java:562) > at org.apache.hadoop.mapred.JobClient$1.run(JobClient.java:557) > 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:1628) > at > org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:557) > at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:548) > at > org.apache.hadoop.hive.ql.exec.mr.ExecDriver.execute(ExecDriver.java:425) > at > org.apache.hadoop.hive.ql.exec.mr.MapRedTask.execute(MapRedTask.java:144) > at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:151) > at > org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:65) > at org.apache.hadoop.hive.ql.Driver.launchTask(Driver.java:1414) > at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:1192) > at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1020) > at org.apache.hadoop.hive.ql.Driver.run(Driver.java:888) > at > org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:259) > at > org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:216) > at > org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:413) > at > org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:781) > at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:675) > at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:614) > 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:497) > at org.apache.hadoop.util.RunJar.run(RunJar.java:221) > at org.apache.hadoop.util.RunJar.main(RunJar.java:136) > Caused by: java.net.UnknownHostException: 01hw357381.tcsgegdc.com: > unknown error > at java.net.Inet4AddressImpl.lookupAllHostAddr(Native Method) > at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:907) > at > java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1302) > at java.net.InetAddress.getLocalHost(InetAddress.java:1479) > ... 34 more > Job Submission failed with exception 'java.net.UnknownHostException( > 01hw357381.tcsgegdc.com: 01hw357381.tcsgegdc.com: unknown error)' > FAILED: Execution Error, return code 1 from > org.apache.hadoop.hive.ql.exec.mr.MapRedTask > > Thanks > Ajeet > > =====-----=====-----===== > Notice: The information contained in this e-mail > message and/or attachments to it may contain > confidential or privileged information. If you are > not the intended recipient, any dissemination, use, > review, distribution, printing or copying of the > information contained in this e-mail message > and/or attachments to it are strictly prohibited. If > you have received this communication in error, > please notify us by reply e-mail or telephone and > immediately and permanently delete the message > and any attachments. Thank you > > -- Nitin Pawar
