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From "Mingjie Lai (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-8153) Fail to submit mapred job on a secured-HA-HDFS: logic URI cannot be picked up by job submission.
Date Thu, 08 Mar 2012 01:01:09 GMT
Fail to submit mapred job on a secured-HA-HDFS: logic URI cannot be picked up by job submission.
------------------------------------------------------------------------------------------------

                 Key: HADOOP-8153
                 URL: https://issues.apache.org/jira/browse/HADOOP-8153
             Project: Hadoop Common
          Issue Type: Bug
          Components: ha, security
    Affects Versions: 0.24.0
            Reporter: Mingjie Lai
             Fix For: 0.24.0


When testing the combination of NN HA + security + yarn, I found that the mapred job submission
cannot pick up the logic URI of a nameservice. 

I have logic URI configured in core-site.xml
{code}
<property>
 <name>fs.defaultFS</name>
 <value>hdfs://ns1</value>
</property>
{code}

HDFS client can work with the HA deployment/configs:
{code}
[root@nn1 hadoop]# hdfs dfs -ls /
Found 6 items
drwxr-xr-x   - hbase  hadoop          0 2012-03-07 20:42 /hbase
drwxrwxrwx   - yarn   hadoop          0 2012-03-07 20:42 /logs
drwxr-xr-x   - mapred hadoop          0 2012-03-07 20:42 /mapred
drwxr-xr-x   - mapred hadoop          0 2012-03-07 20:42 /mr-history
drwxrwxrwt   - hdfs   hadoop          0 2012-03-07 21:57 /tmp
drwxr-xr-x   - hdfs   hadoop          0 2012-03-07 20:42 /user
{code}

but cannot submit a mapred job with security turned on
{code}
[root@nn1 hadoop]# /usr/lib/hadoop/bin/yarn --config ./conf jar share/hadoop/mapreduce/hadoop-mapreduce-examples-0.24.0-SNAPSHOT.jar
randomwriter out
Running 0 maps.
Job started: Wed Mar 07 23:28:23 UTC 2012
java.lang.IllegalArgumentException: java.net.UnknownHostException: ns1
	at org.apache.hadoop.security.SecurityUtil.buildTokenService(SecurityUtil.java:431)
	at org.apache.hadoop.security.SecurityUtil.buildDTServiceName(SecurityUtil.java:312)
	at org.apache.hadoop.fs.FileSystem.getCanonicalServiceName(FileSystem.java:217)
	at org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodesInternal(TokenCache.java:119)
	at org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodesInternal(TokenCache.java:97)
	at org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodes(TokenCache.java:80)
	at org.apache.hadoop.mapreduce.lib.output.FileOutputFormat.checkOutputSpecs(FileOutputFormat.java:137)
	at org.apache.hadoop.mapreduce.JobSubmitter.checkSpecs(JobSubmitter.java:411)
	at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:326)
	at org.apache.hadoop.mapreduce.Job$11.run(Job.java:1221)
	at org.apache.hadoop.mapreduce.Job$11.run(Job.java:1218)
....
{code}0.24

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