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TNS:no appropriate service handler found

Ankita Jha
Ranch Hand

Joined: Sep 15, 2008
Posts: 55
hello Ranchers,


Listener refused the connection with the following error:ORA-12519, TNS:no appropriate service handler foundThe Connection descriptor used by the client was:


I get this error when i try to insert 63 records simultaneously.
After inserting 15 records it throws the above exception.While inserting record it is using BasicDataSource connection factory.

My Question is :Whether BasicDataSource creates a new connection for each insert or it uses the same connection.

In hibernate we have SingleConnectionDataSource which uses the same connection for inserting all 63 record.

I wanted to know whether same kind of factory is available in dbcp.
Please let me know.It's urgent.

Thnks in advance
Amit Ghorpade

Joined: Jun 06, 2007
Posts: 2851

Hi Ankita Jha Welcome to Javaranch ,
Please choose an appropriate forum for your posts, that will result in more useful responses.

This looks like a Oracle question and we have a forum dedicated to it.

|Asking Good Questions|
Paul Campbell
Ranch Hand

Joined: Oct 06, 2007
Posts: 338
Are you sure a record is ever actually inserted... that error message means you do not have a listner associated with your datasource... which implies you do not have a valid connection.

ORA-12519: TNS:no appropriate service handler found

Cause: The listener could not find any available service handlers that are appropriate for the client connection.

Action: Run "lsnrctl services" to ensure that the instance(s) have registered with the listener, and are accepting connections.
I agree. Here's the link:
subject: TNS:no appropriate service handler found
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