Re: Client sqlplus SELECT + SPOOL knocks down server network

From: DA Morgan <>
Date: Mon, 10 Mar 2008 05:21:43 -0700
Message-ID: <>

Carlos wrote:
> Hello all:
> I'm facing a strange problem on a Oracle on Oracle Enterprise
> Linux 5 server.
> This morning someone was issuing a SELECT from a windows client via
> ODBC and suddenly all the server communications broke down: even no
> ping from or to that server worked.
> Tried stop&start network but no avail. The server appears to be dead
> at communications until reboot.
> So I tried to repeat the SELECT from sqlplus on a windows client to a
> OS file with SPOOL and all the communications on the server are gone
> once again. Ping only answers to or its own IP address, and
> Linux is telling me that the network card is OK. Stop&start network
> didn't fix the problem either.
> Client sqlnet.log shows:
> Fatal NI connect error 12170.
> TNS for 32-bit Windows: Version - Production
> Windows NT TCP/IP NT Protocol Adapter for 32-bit Windows: Version
> - Production
> Time: 10-MAR-2008 12:11:59
> Tracing not turned on.
> Tns error struct:
> ns main err code: 12535
> TNS-12535: Message 12535 not found; No message file for
> product=NETWORK, facility=TNS
> ns secondary err code: 12560
> nt main err code: 505
> TNS-00505: Message 505 not found; No message file for
> product=NETWORK, facility=TNS
> nt secondary err code: 60
> nt OS err code: 0
> Client address: <unknown>
> The select is a two column (varchar2(9), char(1)) select of 11 million
> rows aprox.
> Could anybody tell me where to search next? (I didn't find anything at
> metalink).
> TIA.
> Cheers.
> Carlos.

Some of what you've written seems self-conflicting.

You start off telling us you've and then everything thereafter indicates

Then you say "dead until reboot." Does that mean it is now working fine or not?

How about queries using Oracle's native interface SQLNET rather than ODBC?

Ping only answers to, I presume on that machine, have you verified that other addresses exist?

Have you performed an ipconfig /renew?

Perform an ipconfig /all ... what does it show?

Are you using DHCP?

Can you ping the server from elsewhere on the network?

What are your firewall settings?

What tool is connecting using ODBC?

Daniel A. Morgan
Oracle Ace Director & Instructor
University of Washington (replace x with u to respond)
Puget Sound Oracle Users Group
Received on Mon Mar 10 2008 - 07:21:43 CDT

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