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		09-24-2015
	
	
	
	
	
	
	
	
	
	
	
	
	
	
			
      
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| Title | Views | Posted | 
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| 4638 | 05-25-2016 02:39 AM | |
| 4589 | 05-03-2016 01:27 PM | |
| 1194 | 04-26-2016 07:59 PM | |
| 16763 | 03-24-2016 04:10 PM | |
| 3135 | 02-02-2016 11:50 PM | 
			
    
	
		
		
		01-11-2016
	
		
		01:54 AM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
				
		
	
		
					
							 How can hadoop client libraries be added to a node that already exists in the cluster? Can this be done through Ambari? 
						
					
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			Apache Hadoop
			
    
	
		
		
		01-08-2016
	
		
		07:12 PM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
				
		
	
		
					
							 @dkjerrumgaard What version of HDP are you using? The root cause of this issue was discussed here -   https://community.hortonworks.com/questions/5148/atlas-generating-huge-log-files.html  This should have been fixed in maintenaince release 2.3.4 
						
					
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		01-07-2016
	
		
		06:43 PM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
				
		
	
		
					
							 @PQRSumit B  This error is just a wrapper of the root cause. I saw this question a couple of times so I just created an article which will help you get to the bottom of the issue. See the link below -   https://community.hortonworks.com/articles/9148/tr...  My guess is that it could be because of missing JDBC jar file. It is better to place the JDBC jar in HDFS.   Here is a working example - https://github.com/sainib/hadoop-data-pipeline  Let us know if that does not help.  
						
					
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		01-07-2016
	
		
		06:40 PM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
	
		7 Kudos
		
	
				
		
	
		
					
							 In event there is an error while executing any oozie action during a workflow processing, those root cause errors are wrapped within an Oozie error and some times you have to dig a little deeper to find the root cause of the issue. Once you look in the right place (screen/log) the error gives a direct indication of what the issue is but that error is buried a couple of layers below the Oozie UI.   Follow these steps to get more details on Oozie issues -   1) Open Oozie UI       2) Locate the job instance that failed and double click on it       3) Locate the step that failed and double click on it       4) From the Action pop-up, (which also has the cryptic error message in Error Message) click on the small magnifying glass on the right hand side of the Console URL.       5) From the next screen, click on the link that reads "logs" and view the details. (TBD - Add Screen snapshot) 
						
					
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		01-07-2016
	
		
		03:05 PM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
	
		2 Kudos
		
	
				
		
	
		
					
							 @Yashwant Chandrakar  The data is in /var/lib/atlas/data  [root@sandbox atlas]# pwd
/var/lib/atlas
[root@sandbox atlas]# ls
data  server
[root@sandbox atlas]# cd data/
[root@sandbox data]# ls
berkeley  es
  Atlas uses Titan DB, which stores the data on local disk *.jdb   [root@sandbox berkeley]# ls -ltra
total 724
-rw-r--r-- 1 atlas hadoop      0 2015-08-20 08:32 je.info.0
-rw-r--r-- 1 atlas hadoop      0 2015-08-20 08:32 je.lck
drwxr-xr-x 4 atlas hadoop   4096 2015-08-20 08:32 ..
-rw-r--r-- 1 atlas hadoop      0 2015-11-18 01:08 je.info.0.lck
drwxr-xr-x 2 atlas hadoop   4096 2015-11-18 01:08 .
-rw-r--r-- 1 atlas hadoop 727871 2015-12-21 19:05 00000000.jdb
[root@sandbox berkeley]# pwd
/var/lib/atlas/data/berkeley
  There are a few tools available to view titan db file - See below link   http://stackoverflow.com/questions/2135615/gui-for... 
						
					
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		01-07-2016
	
		
		02:50 PM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
				
		
	
		
					
							 @Pavel Benes - Can you modify the source of the program that gets executed Java Action? If so, you can include the kinit as part of the java code.   See below link -   https://community.hortonworks.com/questions/1807/c... 
						
					
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		01-05-2016
	
		
		03:45 AM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
	
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							 This error "No columns to generate forClassWriter" is thrown when no results are retrieved by the command.   So there is something wrong with the command. It appears that it could be the jdbc url.   As per MSDN, the correct syntax for named database uses the term "databaseName" and not "database" (like you have it in the snippet above). So try changing that.   Connect to a named database on a remote server:
jdbc:sqlserver://localhost;databaseName=AdventureWorks;integratedSecurity=true; 
						
					
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		12-31-2015
	
		
		08:06 PM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
				
		
	
		
					
							 The easiest way to find more details and exact root cause is this -   1) Open Oozie UI & Select right tabs      2) Double click on the job that failed and get more details by clicking on the small magnifying glass icon       Review the next screen for more error details. If you are unclear of the issue, share the details from the next screen. 
						
					
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		12-31-2015
	
		
		02:15 PM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
				
		
	
		
					
							 Moved the question to Governance track. 
						
					
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