Hi Nitin , How to check this, you mean to check hive-site.xml. please
let me know how to check this.
From: Nitin Pawar <nitinpawar...@gmail.com>
To: "user@hive.apache.org" <user@hive.apache.org>
Date: 07/09/2015 07:35 PM
Subject: Re: Hive Query Error
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
