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From Manickam P <manicka...@outlook.com>
Subject RE: Unable to connect to oracle database from sqoop
Date Fri, 21 Jun 2013 07:57:00 GMT
Hi Michal,
Thanks for your help. now i'm able to connect with this. when i try to import i'm getting
error again. 13/06/21 03:43:15 WARN tool.BaseSqoopTool: Setting your password on the command-line
is insecure. Consider using -P instead.13/06/21 03:43:15 INFO manager.SqlManager: Using default
fetchSize of 100013/06/21 03:43:15 INFO tool.CodeGenTool: Beginning code generation13/06/21
03:43:17 INFO manager.OracleManager: Time zone has been set to GMT13/06/21 03:43:17 INFO manager.SqlManager:
Executing SQL statement: SELECT t.* FROM EMPLOYEE t WHERE 1=013/06/21 03:43:17 ERROR tool.ImportTool:
Imported Failed: Attempted to generate class with no columns!
My script to import table is ./sqoop-import --connect jdbc:oracle:thin:@MyIPAddress:1521/cp.MYTNSNAME
--username scott --password tiger --table=EMPLOYEE

Thanks,
Manickam P
Date: Fri, 21 Jun 2013 09:45:22 +0200
Subject: Re: Unable to connect to oracle database from sqoop
From: michal.taborsky@gmail.com
To: user@sqoop.apache.org

OK, so either use this connection parameter:

--connect  "jdbc:oracle:thin:scott/tiger@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=MyIPAddress)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=CP.MYTNSNAME)))"


or try this:

--connect jdbc:oracle:thin:@localhost:1521/CP.MYTNSNAME --username scott --password tiger
Michal Taborsky


2013/6/21 Manickam P <manickam.p@outlook.com>




Hi Michal,
Here i have provided the details available in my TNSNames.ora file. 
MYTNSNAME=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL = TCP)(HOST = MyIPAddress)(PORT =
1521)))(CONNECT_DATA=(SERVICE_NAME = CP.MYTNSNAME)))


Thanks,
Manickam P
Date: Fri, 21 Jun 2013 09:29:30 +0200
Subject: Re: Unable to connect to oracle database from sqoop
From: michal.taborsky@gmail.com

To: user@sqoop.apache.org

Well, it looks that you indeed do not have a service "cp" running on your listener (service
is something different than SID, is something different than database name and is something
different than instance name). Does your connection work from sqlplus for example? If you
have the contents of the tnsnames.ora, just paste the whole connection string from there (just
compact it so it is on one line). Or post the contents of the tnsnames.ora file here and I
can give you some more guidance.

Michal



2013/6/21 Manickam P <manickam.p@outlook.com>





Hello Michal,
Thanks for your reply. I tried with your input but after that also i'm getting the same error.
i've given below the script i used. 

./sqoop-list-databases --connect  "jdbc:oracle:thin:username/password@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=MyIPAddress)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=cp)))"


Do i need to add any jar file in the sqoop lib apart from ojdbc jar? 
when i try the above script i got the below exception. I've added the complete stack trace.


13/06/21 02:52:43 INFO manager.SqlManager: Using default fetchSize of 100013/06/21 02:52:43
ERROR manager.OracleManager: Failed to rollback transaction

java.lang.NullPointerException        at org.apache.sqoop.manager.OracleManager.listDatabases(OracleManager.java:615)
       at org.apache.sqoop.tool.ListDatabasesTool.run(ListDatabasesTool.java:49)

        at org.apache.sqoop.Sqoop.run(Sqoop.java:145)        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
       at org.apache.sqoop.Sqoop.runSqoop(Sqoop.java:181)        at org.apache.sqoop.Sqoop.runTool(Sqoop.java:220)

        at org.apache.sqoop.Sqoop.runTool(Sqoop.java:229)        at org.apache.sqoop.Sqoop.main(Sqoop.java:238)13/06/21
02:52:43 ERROR manager.OracleManager: Failed to list databases

java.sql.SQLException: Listener refused the connection with the following error:ORA-12514,
TNS:listener does not currently know of service requested in connect descriptor        at
oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:458)

        at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:546)
       at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:236)        at
oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)

        at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:521)        at java.sql.DriverManager.getConnection(Unknown
Source)        at java.sql.DriverManager.getConnection(Unknown Source)

        at org.apache.sqoop.manager.OracleManager.makeConnection(OracleManager.java:308) 
      at org.apache.sqoop.manager.GenericJdbcManager.getConnection(GenericJdbcManager.java:52)
       at org.apache.sqoop.manager.OracleManager.listDatabases(OracleManager.java:604)

        at org.apache.sqoop.tool.ListDatabasesTool.run(ListDatabasesTool.java:49)        at
org.apache.sqoop.Sqoop.run(Sqoop.java:145)        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)

        at org.apache.sqoop.Sqoop.runSqoop(Sqoop.java:181)        at org.apache.sqoop.Sqoop.runTool(Sqoop.java:220)
       at org.apache.sqoop.Sqoop.runTool(Sqoop.java:229)        at org.apache.sqoop.Sqoop.main(Sqoop.java:238)

Caused by: oracle.net.ns.NetException: Listener refused the connection with the following
error:ORA-12514, TNS:listener does not currently know of service requested in connect descriptor

        at oracle.net.ns.NSProtocol.connect(NSProtocol.java:395)        at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1102)
       at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:320)

        ... 16 more

Thanks,
Manickam P
Date: Fri, 21 Jun 2013 08:47:11 +0200
Subject: Re: Unable to connect to oracle database from sqoop


From: michal.taborsky@gmail.com
To: user@sqoop.apache.org


Hello Manickam,
the Oracle connection parameters are a bit confusing sometimes (not a Sqoop problem). The
thin client, which you are using, does not support full Oracle*Net client and it does not
work with tnasnames.ora. So you either specify the service directly (in your case, the listener
running on localhost must provide service "cp"). Or you can provide the full connection string
(taken from tnsnames.ora) in the commandline:



For example, like this:sqoop import --connect  "jdbc:oracle:thin:username/password@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=YOURSERVICENAME)))"
...




Hope this helps,Michal


2013/6/21 Manickam P <manickam.p@outlook.com>





Hi,
Given below is the scoop script i used. 
 ./sqoop list-databases --connect jdbc:oracle:thin:@localhost:1521/cp --username scott --password
tiger


JDBC driver directory - which directory you mean here? i have put ojdbc jar in sqoop lib folder.
Is that fine or am i missing anything here? 

Thanks,
Manickam P



Date: Thu, 20 Jun 2013 16:04:50 +0200
Subject: Re: FW: Unable to connect to oracle database from sqoop
From: verdier.jerome66@gmail.com



To: user@sqoop.apache.org

Hi,

Please send your Sqoop script, and the output of "ls" command on your JDBC driver directory.




Thanks


2013/6/20 Manickam P <manickam.p@outlook.com>




Hi,

I am trying to import details from oracle through sqoop but i got the below error. 



   13/06/20 09:09:21 ERROR manager.OracleManager: Failed to list databasesjava.sql.SQLException:
Listener refused the connection with the following error:



ORA-12514, TNS:listener does not currently know of service requested in connect descriptor




I've put an entry into the TNSname.ora file and also added ojdbc jar with sqoop lib folder.

Please help me to resolve the issue.


Thanks,
Manickam P
 		 	   		   		 	   		  





 		 	   		  

 		 	   		  

 		 	   		  

 		 	   		  
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