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From "Lakshmi VS (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMBARI-14453) Ambari has lowercase hostnames while cluster is installed with uppercase hostnames.
Date Mon, 21 Dec 2015 22:00:47 GMT
Lakshmi VS created AMBARI-14453:
-----------------------------------

             Summary: Ambari has lowercase hostnames while cluster is installed with uppercase
hostnames.
                 Key: AMBARI-14453
                 URL: https://issues.apache.org/jira/browse/AMBARI-14453
             Project: Ambari
          Issue Type: Bug
          Components: ambari-server
    Affects Versions: 2.2.0
            Reporter: Lakshmi VS


Steps followed -
1. Hadoop cluster with below config is installed successfully with uppercase hostnames.
{code}
CLUSTERNAME='N91'
MASTER1=N9-1-1.labs.teradata.com
MASTER2=N9-1-2.labs.teradata.com
DATANODE1=N9-1-3.labs.teradata.com
DATANODE2=N9-1-4.labs.teradata.com
DATANODE3=N9-1-5.labs.teradata.com
{code}
Snippet of /etc/hosts file -
{code}
39.0.8.1    N9-1-1.labs.teradata.com N9-1-1 byn001-1 hadoopvm1-1
39.0.8.2    N9-1-2.labs.teradata.com N9-1-2 byn001-2 hadoopvm1-2
39.0.8.3    N9-1-3.labs.teradata.com N9-1-3 byn001-3 hadoopvm1-3
39.0.8.4    N9-1-4.labs.teradata.com N9-1-4 byn001-4 hadoopvm1-4
39.0.8.5    N9-1-5.labs.teradata.com N9-1-5 byn001-5 hadoopvm1-5
{code}

2. Ambari host page shows all hostnames to be of lower case.
3. Attempt to run jobs fails on -
{code}
Error: java.net.ConnectException: Call From N9-1-4.labs.teradata.com/39.0.8.4 to n9-1-1.labs.teradata.com:8020
failed on connection exception: java.net.ConnectException: Connection refused;
{code}
Snippet of mapreduce job failure -
{code}
out: 15/12/21 08:12:09 INFO mapreduce.Job: Task Id : attempt_1450702943449_0001_m_000002_0,
Status : FAILED
 out: Error: java.net.ConnectException: Call From N9-1-4.labs.teradata.com/39.0.8.4 to n9-1-1.labs.teradata.com:8020
failed on connection exception: java.net.ConnectException: Connection refused; For more details
see:  http://wiki.apache.org/hadoop/ConnectionRefused
 out: 	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
 out: 	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
 out: 	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
 out: 	at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
 out: 	at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:792)
 	at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:732)
 	at org.apache.hadoop.ipc.Client.call(Client.java:1431)
	at org.apache.hadoop.ipc.Client.call(Client.java:1358)
 	at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:229)
 	at com.sun.proxy.$Proxy13.getFileInfo(Unknown Source)
 	at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:771)
 	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.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:252)
 	at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:104)
 	at com.sun.proxy.$Proxy14.getFileInfo(Unknown Source)
 	at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:2116)
 	at org.apache.hadoop.hdfs.DistributedFileSystem$22.doCall(DistributedFileSystem.java:1315)
 	at org.apache.hadoop.hdfs.DistributedFileSystem$22.doCall(DistributedFileSystem.java:1311)
 	at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
 	at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1311)
 	at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:1424)
 	at org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter.needsTaskCommit(FileOutputCommitter.java:641)
 	at org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter.needsTaskCommit(FileOutputCommitter.java:630)
 	at org.apache.hadoop.mapred.Task.isCommitRequired(Task.java:1085)
 	at org.apache.hadoop.mapred.Task.done(Task.java:1042)
 	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:345)
 	at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:168)
 	at java.security.AccessController.doPrivileged(Native Method)
 	at javax.security.auth.Subject.doAs(Subject.java:422)
 	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
 	at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:162)
 Caused by: java.net.ConnectException: Connection refused
 	at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
 	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
 	at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
 	at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:531)
 	at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:495)
 	at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:612)
 	at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:710)
 	at org.apache.hadoop.ipc.Client$Connection.access$2800(Client.java:373)
 	at org.apache.hadoop.ipc.Client.getConnection(Client.java:1493)
	at org.apache.hadoop.ipc.Client.call(Client.java:1397)
	... 27 more
{code}

3. Services - HDFS, Mapreduce, HBase, Yarn services which were up and running after installation
go down.

Attached are the logs for Yarn and HBase services.



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