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Sqoop >> mail # user >> FW: Unable to connect to oracle database from sqoop


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Manickam P 2013-06-20, 13:34
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Jérôme Verdier 2013-06-20, 14:04
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Jarek Jarcec Cecho 2013-06-20, 14:55
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Manickam P 2013-06-21, 05:54
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Michal Taborsky 2013-06-21, 06:47
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Manickam P 2013-06-21, 07:08
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Michal Taborsky 2013-06-21, 07:29
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Manickam P 2013-06-21, 07:39
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Michal Taborsky 2013-06-21, 07:45
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RE: Unable to connect to oracle database from sqoop
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: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]

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 <[EMAIL PROTECTED]>
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: [EMAIL PROTECTED]

To: [EMAIL PROTECTED]

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 <[EMAIL PROTECTED]>

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: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
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
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Michal Taborsky 2013-06-21, 09:13
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Manickam P 2013-06-21, 09:39
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Venkat 2013-06-21, 14:20
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB