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Oracle 10g installation on RHEL AS 3,Red Hat FC 2 and 1
Exporting environment variable LD_ASSUME_KERNEL=2.4.1 will affect performance of Oracle 10g instance on Red Hat Linux starting with version 9, i.e. version with Native Posix Threads Implementation.
Each one of articles below:-
Login as the oracle user and add the following lines at the end of the .bash_profile file:
# Oracle Settings
TMP=/tmp; export TMP
TMPDIR=$TMP; export TMPDIR
ORACLE_BASE=/u01/app/oracle; export ORACLE_BASE
ORACLE_HOME=$ORACLE_BASE/product/10.1.0/db_1; export ORACLE_HOME
ORACLE_SID=TSH1; export ORACLE_SID
ORACLE_TERM=xterm; export ORACLE_TERM
PATH=/usr/sbin:$PATH; export PATH
PATH=$ORACLE_HOME/bin:$PATH; export PATH
LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib; export LD_LIBRARY_PATH
CLASSPATH=$ORACLE_HOME/JRE:$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib; export CLASSPATH
LD_ASSUME_KERNEL=2.4.1; export LD_ASSUME_KERNEL
if [ $USER = "oracle" ]; then
if [ $SHELL = "/bin/ksh" ]; then
ulimit -p 16384
ulimit -n 65536
ulimit -u 16384 -n 65536
Hope this helps. Regards Tim...
Compare previous oracle .bash_profiles with Werner Puschitz directives
Setting Oracle Environments
Since the Oracle Universal Installer (OUI) "runInstaller" is run from the oracle account,
some environment variables must be configured for this account before OUI is started.
Execute the following commands for the Bash shell which is the default shell on
Red Hat Linux (to verify your shell run: echo $SHELL):
su - oracle
NOTE: If ORACLE_BASE is used, then Oracle recommends that you don't set the
ORACLE_HOME environment variable but that you choose the default path suggested by the OUI.
You can set and use ORACLE_HOME after you finished running OUI.
To have these environment variables set automatically each time you login as oracle,
you can add these environment variables to the ~oracle/.bash_profile file which is
the user startup file for the Bash shell on Red Hat Linux.
su - oracle
cat >> ~oracle/.bash_profile << EOF
Updates after Running Oracle Universal Installer
After Oracle10g has been installed, make sure that ORACLE_HOME and PATH are set for
the oracle account:
oracle$ export ORACLE_HOME=$ORACLE_BASE/product/10.1.0/db_1
oracle$ export PATH=$PATH:$ORACLE_HOME/bin
To have these environment variables set each time you login as oracle,
add the configuration of the above Oracle environment variables to the
~oracle/.bash_profile file if you use bash (echo $SHELL).
Werner Puschitz doesn't include
into Oracle's .bash_profile
RHEL AS 3,Red Hat FC 2,1 have Native Posix Threads Implemented
and Oracle 10g supports NPTL
Hence, using old threads model as is advised at oracle-base.com will affect
performance of your Oracle 10g instance.
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