We are having 2 or three oracle errors ora-12547 every hour on several of
our apache web servers and our database server. I have spoken to oracle
support and they say the problem is an error 104 coming from the OS. They
ascertain this information from a trace I run on the client connection.
I spoken with red hat support and they said they have no records of a
problem with error 104.
I poked around on the web and have found several mentions of intermittent
problems with 3com cards. Don't know if related since not red hat but I
thought was interesting.
Our database server returns the following from a uname -a
Linux db2.emazing.com 2.2.14-11.lfs #1 SMP Fri Sep 15 20:31:51 EDT 2000
our web server has the following results.
Linux web2.emazing.com 2.2.5-22smp #1 SMP Wed Jun 2 09:11:51 EDT 1999 i686
We are running oracle 188.8.131.52 on the database server.
Please look into /var/log/messages for kernel logs that point to driver problems
using newer kernels or other network cards if this the real problem.