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brian_11825's avatar
brian_11825
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Aug 17, 2010

Intermittent connection errors

We have a Big-Ip VIP fronting our two-node Oracle RAC. All too frequently we get application connection errors when connecting through the VIP. The nodes are fine and connecting directly to them works...
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bletardph_10497's avatar
bletardph_10497
Icon for Nimbostratus rankNimbostratus
Aug 04, 2011

Hi,

 

 

Just another test I've made...

 

I've installed the Oracle Client on my PC, configuring to reach a DB directly and through the BigIP...

 

 

DIRECT connection is working:

 

 

SQL*Plus: Release 11.2.0.1.0 Production on Thu Aug 4 15:41:10 2011

 

 

Copyright (c) 1982, 2010, Oracle. All rights reserved.

 

 

 

Connected to:

 

Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production

 

With the Partitioning, Real Application Clusters, Automatic Storage Management,

 

OLAP, Data Mining and Real Application Testing options

 

 

But through the BigIP:

 

 

SQL*Plus: Release 11.2.0.1.0 Production on Thu Aug 4 15:41:18 2011

 

 

Copyright (c) 1982, 2010, Oracle. All rights reserved.

 

 

ERROR:

 

ORA-12547: TNS:lost contact

 

 

I've also created a small Weblogic domain with a datasource going through the BigIP and for this one, the test on the datasource is still OK...

 

 

 

BR,

 

 

Phil