Migrating RHN From Oracle XE To Oracle 11gR2 Database

I have been running redhat spacewalk server to manage packages to redhat linux systems.The initial backend database is oracle XE that the size of the database can grow to approach 4GB limit.So,i mirate it to oracle 11gR2 database.

Current Environment

1.RedHat Linux 6

2.Spacewalk verison:1.7

3.Spacewalk channel:3 base,4 child

4.Total packages:13,230

Prerequisites

1.For install and configure spacewalk with oracle XE from here.

2.Configure linux for installing oracle 11gR2 database.Run following script:

#!/bin/bash
echo -------------------------------------------------
echo "This script prepare for Oracle 11g database."
#add group
echo -------------------------------------------------
echo "Now add asmadmin、dba、oper group."
for id in oinstall asmadmin dba oper;do groupadd $id;done
sleep 1
#add oracle user
echo -------------------------------------------------
echo "Now create oracle user and set password for it."
echo "The Oracle's Default Password is "oracle"."
echo -------------------------------------------------
useradd -g oinstall -G asmadmin,dba,oper -m -d /home/oracle -s /bin/bash oracle
echo oracle|passwd --stdin oracle
sleep 1

echo -------------------------------------------------
echo "Configure System Parameters For Oracle"
sleep 2
echo -------------------------------------------------
echo "Edit the /etc/sysctl.conf file."
#define /etc/sysctl.conf
cat >>/etc/sysctl.conf<< EOF
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
net.ipv4.ip_local_port_range = 9000 65500
net.core.rmem_default=262144
net.core.rmem_max=8388608
net.core.wmem_default=262144
net.core.wmem_max=8388608
fs.aio-max-nr=1048576
fs.file-max = 6815744
net.ipv4.tcp_rmem=4096 262144 8388608
net.ipv4.tcp_wmem=4096 262144 8388608
EOF
sleep 1

#define /etc/pam.d/login
echo -------------------------------------------------
echo "Edit the /etc/pam.d/login file."
cat >>/etc/pam.d/login<<EOF
session    required     pam_limits.so
EOF
sleep 1

#define /etc/security/limits.conf
echo -------------------------------------------------
echo "Edit the /etc/security/limits.conf file."
cat >>/etc/security/limits.conf<<EOF
oracle soft nproc 2047
oracle hard nproc 16384
oracle soft nofile 1024
oracle hard nofile 65536
EOF
sleep 1

#define /etc/profile
echo -------------------------------------------------
echo "Edit the /etc/profile file."
cat >>/etc/profile<<EOF
if [ \$USER = "oracle" ] || [ \$USER = "grid" ]; then
    if [ \$SHELL = "/bin/ksh" ]; then
        ulimit -p 16384
        ulimit -n 65536
    else
        ulimit -u 16384 -n 65536
    fi
    umask 022
fi
EOF
sleep 1

echo --------------------------------------------------
echo "Set Oracle's Environment Variable."
#defile oracle user's profile
if [ -e /home/oracle/.bash_profile ]&&[ -e /home/oracle/.bashrc ];then
cat >>/home/oracle/.bash_profile<<EOF
export ORACLE_SID=example
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=\$ORACLE_BASE/product/11.2.0/db_1
export NLS_DATE_FORMAT="DD-MON-YYYY HH24:MI:SS"
export TNS_ADMIN=\$ORACLE_HOME/network/admin
export ORA_NLS11=\$ORACLE_HOME/nls/data
export PATH=\$PATH:\$HOME/bin:\$ORACLE_HOME/bin:\$JAVA_HOME/bin
export LD_LIBRARY_PATH=\$ORACLE_HOME/lib:\${LD_LIBRARY_PATH}:\$ORACLE_HOME/oracm/lib:/lib:/usr/lib:/usr/local/lib
export CLASSPATH=\$ORACLE_HOME/JRE:\$ORACLE_HOME/jlib:\$ORACLE_HOME/rdbms/jlib:\$ORACLE_HOME/network/jlib
export THREADS_FLAG=native
umask 022
EOF
chown oracle:oinstall /home/oracle/.bash_profile
echo "alias df='df -h'">>/home/oracle/.bashrc
echo "alias du='du -sh'">>/home/oracle/.bashrc
echo "alias la='ls -lha'">>/home/oracle/.bashrc
echo ----------------------------------------------------
echo "The Default ORACLE_SID is example."
fi
sleep 1

#create /u01
echo ----------------------------------------------------
echo "Now,Create ORACLE_HOME."
        if [ ! -e /u01 ];then
                mkdir /u01
                chown -R oracle:oinstall /u01
                chmod 775 /u01
                su - oracle -c "mkdir -p \$ORACLE_HOME"
        else
                echo "The ORACLE_HOME exist."
        fi
sleep 1
#install packages
echo "**********************************************************************"
echo "Please Install Follow Packages:"
echo "binutils compat-libstdc++ elfutils-libelf elfutils-libelf-devel"
echo "elfutils-libelf-devel-static gcc gcc-c++ glibc glibc-common"
echo "glibc-devel glibc-headers ksh libaio libaio-devel libgcc"
echo "libgomp libstdc++ libstdc++-devel make sysstat unixODBC unixODBC-devel"
echo "**********************************************************************"
echo "WARNING:After run this scripts,You Must Reboot Your Machine !!!"

3.Installing oracle 11gR2 database (omitted).

4.Create the oracle 11gR2 start and stop scripts

[root@server ~]#vi /etc/init.d/oracle
#!/bin/bash
# oracle   This shell script takes care of starting and stopping the oracle services.
# Init file for oracle daemon
#
# chkconfig: 2345 55 25
# description: oracle daemon
#
#oracle_home:/u01/app/oracle/product/11.2.0/db_1

RETVAL=0

# Source function library.
. /etc/rc.d/init.d/functions


# Source networking configuration.
[ -f /etc/sysconfig/network ] && . /etc/sysconfig/network

#define global envionment variables
#ORACLE_HOME=/u01/app/oracle/product/11.2.0/db_1

#define the start function
start () {
#start LISTENER
if [ -x $ORACLE_HOME/bin/lsnrctl ]; then
su - oracle -c 'lsnrctl start' >/home/oracle/lsnrctl_start.log 2>&1  &
fi

#start oracle instance
if [ -x $ORACLE_HOME/bin/sqlplus ]; then
su - oracle -c 'sqlplus'<<EOF
connect / as sysdba
startup
quit
EOF
fi

#create pid file
sleep 20s
ps -ef|grep ora|grep inherit|awk '{print $2}'>$PID_DIR/lsnrctl.pid

}

#
#define the stop function
#

stop () {

#stop oracle instance
if [ -x $ORACLE_HOME/bin/sqlplus ]; then
su - oracle -c 'sqlplus'<<EOF
connect / as sysdba
shutdown immediate
quit
EOF
fi

#stop LISTENER
if [ -x $ORACLE_HOME/bin/lsnrctl ]; then
su - oracle -c 'lsnrctl stop' >/home/oracle/lsnrctl_stop.log 2>&1  &
fi
#delete all log file on oracle home
su - oracle -c 'rm -rf /home/oracle/*.log'
#delete listener isqlplus pid file
rm -rf /var/run/lsnrctl.pid
}


#define status functions
status () {
    if [ -d /var/run ];then
       if [ -f $PID_DIR/lsnrctl.pid ];then
          LISNTER_PID=`cat $PID_DIR/lsnrctl.pid`
          echo The oracle listener is running and pid is $LISNTER_PID .....
       else
              echo The oracle listener is stopped
       fi
        fi

}

# See how we were called.
case "$1" in
  start)
        start
        ;;
  stop)
        stop
        ;;
  restart)
        stop
        start
        ;;
  status)
    status
    ;;
    *)
        echo $"Usage: $prog {start|stop|restart|status}"
        exit 1
esac

exit $RETVAL

[root@server ~]# chkconfig --add oracle
[root@server ~]# chkconfig --list oracle
oracle          0:off   1:off   2:off   3:off   4:off   5:off   6:off
[root@server ~]# chkconfig oracle on
[root@server ~]# chkconfig --list oracle
oracle          0:off   1:off   2:on    3:on    4:on    5:on    6:off
[root@server ~]# chkconfig --level 24 oracle off
[root@server ~]# chkconfig --list oracle
oracle          0:off   1:off   2:off   3:on    4:off   5:on    6:off
[root@server ~]#

Create a Database Dump

1.Disable automatic start of  oracle XE  on system boot up

[root@server ~]# chkconfig oracle-xe off
[root@server ~]# chkconfig --list oracle-xe
oracle-xe       0:off   1:off   2:off   3:off   4:off   5:off   6:off
[root@server ~]#

2.Shutdown spacewalk services

[root@server ~]# spacewalk-service stop
Shutting down spacewalk services...
Stopping RHN Taskomatic...
Stopped RHN Taskomatic.
Stopping cobbler daemon:                                   [  OK  ]
Stopping rhn-search...
Stopped rhn-search.
Stopping MonitoringScout ...
    Stopping InstallSoftwareConfig ...  [ OK ]
[ OK ]
Stopping Monitoring ...
    Stopping TSDBLocalQueue ...  [ OK ]
    Stopping AckProcessor ...  [ OK ]
    Stopping Notifier ...  [ OK ]
    Stopping NotifLauncher ...  [ OK ]
    Stopping GenerateNotifConfig ...  [ OK ]
    Stopping NotifEscalator ...  [ OK ]
[ OK ]
Stopping httpd:                                            [  OK  ]
Stopping tomcat6:                                          [  OK  ]
Shutting down osa-dispatcher:                              [FAILED]
Terminating jabberd processes ...
Stopping router:                                           [  OK  ]
Stopping sm:                                               [  OK  ]
Stopping c2s:                                              [FAILED]
Stopping s2s:                                              [  OK  ]
Done.

3.start oracle XE

[root@server ~]#/etc/init.d/oracle-xe start
Starting Oracle Net Listener.
Starting Oracle Database 10g Express Edition Instance.

4.Backup the XE database:

[oracle@server scripts]$ pwd
/u01/app/oracle/product/11.2.0/xe/config/scripts
[oracle@server scripts]$ ./backup.sh
.......
Backup of the database succeeded.
Log file is at /usr/lib/oracle/xe/oxe_backup_current.log.

5.Create a dump of the XE database for importation into Oracle 11r2 database

[oracle@server ~]$ . /u01/app/oracle/product/11.2.0/xe/bin/oracle_env.sh
[oracle@server ~]$ exp spacewalk/oracle owner=spacewalk consistent=y statistics=none file=spacewalk.oracleXE.dmp log=spacewalk.oracleXE.log

Export: Release 11.2.0.3.0 - Production on Mon Aug 6 18:09:56 2012

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to: Oracle Database 11g Express Edition Release 11.2.0.2.0 - Production
Export done in AL32UTF8 character set and AL16UTF16 NCHAR character set

...

. exporting dimensions
. exporting post-schema procedural objects and actions
. exporting statistics
Export terminated successfully without warnings.

Configure oracle 11gR2 database

1.Create a spacewalk tablespace on oracle 11gr2 databse

[oracle@server ~]$ echo $ORACLE_SID
spwdb
[oracle@server ~]$ echo $ORACLE_HOME
/u01/app/oracle/product/11.2.0/db_1
[oracle@server ~]$ sqlplus "/as sysdba"
SQL*Plus: Release 11.2.0.3.0 Production on Tue Aug 6 18:43:56 2012

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> create tablespace spacewalk datafile '/u01/oradata/spwdb/spw01.dbf' size 10G autoextend on next 1G;
SQL>create user spacewalk identified by oracle default tablespace spacewalk;
SQL>grant dba to spacewalk;

2.Import the oracle XE dumped database

[oracle@server ~]$imp spacewalk/oracle@spwdb fromuser=spacewalk touser=spacewalk file=spacewalk.oracleXE.dmp ignore=y
.................

import done in AL32UTF8 character set and AL16UTF16 NCHAR character set
. importing SPACEWALK's objects into SPACEWALK
. . importing table                     "DEMO_LOG"          0 rows imported
. . importing table            "HTMLDB_PLAN_TABLE"          2 rows imported
. . importing table                  "PXTSESSIONS"          0 rows imported
. . importing table                    "RHNACTION"        140 rows imported

...

. importing SPACEWALK's objects into SPACEWALK
About to enable constraints...
Import terminated successfully with warnings.

3.Remove execute permissions from the oracle-xe:

[root@server ~]#chkconfig oracle-xe off
[root@server ~]#chmod -x /etc/init.d/oracle-xe

4.Edit the /etc/rhn/rhn.conf file and replace any occurrence of 'xe' with 'spwdb'

[root@server ~]# grep -n spwdb /etc/rhn/rhn.conf
32:db_name = //localhost/spwdb

5.Edit the /etc/rhn/cluster.ini and replace 'xe' with 'spwdb'

[root@server ~]# grep -n spwdb /etc/rhn/cluster.ini
2:LocalConfig.0.dbname=//LOCALHOST/spwdb

6.Start the spacewalk services:

[root@server rhn]# spacewalk-service start
Starting spacewalk services...
Initializing jabberd processes ...
Starting router:                                           [  OK  ]
Starting sm:                                               [  OK  ]
Starting c2s:                                              [  OK  ]
Starting s2s:                                              [  OK  ]
Starting osa-dispatcher:                                   [  OK  ]
Starting tomcat6:                                          [  OK  ]
Waiting for tomcat to be ready ...
Starting httpd:                                            [  OK  ]
Starting Monitoring ...
    Starting InstallSoftwareConfig ...  [ OK ]
    Starting NotifEscalator ...  [ OK ]
    Starting GenerateNotifConfig ...  [ OK ]
    Starting NotifLauncher ...  [ OK ]
    Starting Notifier ...  [ OK ]
    Starting AckProcessor ...  [ OK ]
    Starting TSDBLocalQueue ...  [ OK ]
[ OK ]
Starting MonitoringScout ...
[ OK ]
Starting rhn-search...
Starting cobbler daemon:                                   [  OK  ]
Starting RHN Taskomatic...
Done.