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How do I disable TNS-12547: TNS:lost contact error in Oracle

Posted on 2011-03-21
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Last Modified: 2012-08-14
Hello,
I have a v11g Oracle database that randomly reports the following error in the alert logs:
TNS-12547: TNS:lost contact
    ns secondary err code: 12560
    nt main err code: 0
    nt secondary err code: 0
    nt OS err code: 0

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I was wondering if there was a way to disable this error in oracle?  
Thank You
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Question by:Alex Matzinger
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4 Comments
 
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Expert Comment

by:gopisera
ID: 35185861
Hoping the error comes when the  listener log file reaches maximum.  Unable to write the data in the listener log file.

make of copy of exiting and try to create an empty log file.

If this is not due these. Please let me know :)

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Expert Comment

by:Aaron Shilo
ID: 35190715
first of all NO you cant disable the error message.

i had a similar issue and what worked for me was to delete the listener.log file that grow very large.
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Author Comment

by:Alex Matzinger
ID: 35261987
It does not appear that this problem is related to the size of the log file.  I have tried clearing this out, and it is still occurring.  I am still investigating what may be causing this error,  and if there is a way to side step it.  It does not appear to be effecting my databases performance, it is just annoying, i will keep this thread up to date with any findings I come across.
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Accepted Solution

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Alex Matzinger earned 0 total points
ID: 35740444
This problem is related to connections timing out in oracle.  I set the two paramters in the listener.ora file and the sqlnet.ora file, and they reduced the number of errors I saw.  The parameters:

Sqlnet.ora: SQLNET.INBOUND_CONNECT_TIMEOUT=120
Listener.ora: INBOUND_CONNECT_TIMEOUT_LISTENER=120 

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