Comments on: If you access a database link in a session, then the link remains open until you close the session (ORA-02020)

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By: Damir Vadas

Damir Vadas — Wed, 27 Jun 2012 05:54:03 +0000

Nice post and discussion after…
Just to mention, on RAC there is one another parameter “open_links_per_instance”.
Rg,
Damir

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If you access a database link in a session, then the link remains open until you close the session (ORA-02020) « Coskans Approach to Oracle…

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If you access a database link in a session, then the link remains open until you close the session (ORA-02020) « Coskans Approach to Oracle…

By: Adrian

Adrian — Wed, 23 Feb 2011 13:02:13 +0000

Thanks, I will do that.

By: coskan

coskan — Wed, 23 Feb 2011 12:53:02 +0000

I think its better you increase the open_links parameter and also change the code to close the links you opened in your procedure

By: Adrian

Adrian — Wed, 23 Feb 2011 12:42:05 +0000

open_links=4
Yes, this error only appears from time to time. The site is in production for more than a year now and this error has only recently appeared. The code related to DBLINK access hasn’t changed significantly in the last year. So I am assuming that the increased number of concurrent users accessing the site might cause this error. Let’s assume that there are 3 users connected at the site at the same time. They are all using the same DB user to connect to the DB. If all of them are calling the procedure with 2 DBLINKs calls at the same time, will 02020 error be generated?

By: coskan

coskan — Wed, 23 Feb 2011 12:35:43 +0000

adrian

Are you calling your procedure several times and get the error after a certain amount of calling or 1 time and every time you call you hit the problem ?

Meanwhile what is your open_links parameter value ?