AdnanDBA

Remove the target from EM manually using the emcli

1- On your main Enterprise Manager Repository logon to your emcli utility.

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 [oracle@HOST]$ cd /u00/oms12.0.3/oms/bin
[oracle@HOST]$ ./emcli login -username=SYSMAN
Enter password:xxxxxxx
 
Login successful
 

2- Once conected run the sync command:

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 [oracle@HOST]$ ./emcli sync
Synchronized successfully
 

3 – Now let’s remove the target manually using the emcli command line utility:

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 [oracle@HOST]$ ./emcli delete_target -name="name.domain:3872" -type="oracle_emd" -delete_monitored_targets
Target "name.domain:3872:oracle_emd" deleted successfully
 

Done

List running Weblogic servers and Node Managers

#!/bin/bash
# ---------------------------------------------------------------------------
# listWebLogicServers.sh - List running WebLogic Servers and Node Managers
# Peter Lorenzen
# Version 0.9
# ---------------------------------------------------------------------------

DOMAIN_DIRECTORY="domains"

echo "################################################################################"
echo "# WebLogic Servers"
echo "# <owner> <domain> <server> <pid> <ports>"
echo "################################################################################"
ps -ef | grep "[D]weblogic.Name="|while read tmp
do
owner=`echo $tmp | awk '{ print $1 }'`
webLogicServer=`echo $tmp | grep -oP "(?<=Dweblogic.Name=)[^ ]+"`
pid=`echo $tmp | awk '{ print $2 }'`
port=`echo $tmp | netstat -tlpn 2>/dev/null | grep $pid | awk '{ print $4 }' | tr '\n' ',' | tr ' ' ',' | grep -o ":....," | sort -u | tr -d '\n' | tr -d ':' | sed 's/,$//'`
if [ -z "$port" ]; then
    port="null"
fi
domain=`echo $tmp | grep -oP "(?<=BootIdentityFile=)[^ ]+"`
domain=`echo $domain | grep -oP "(?<=$DOMAIN_DIRECTORY/)[^ ]+" | cut -d/ -f1`
if [ -n "$1" ]; then
    echo "$owner $domain $webLogicServer $pid $port kill -9 $pid"
else
    echo "$owner $domain $webLogicServer $pid $port"
fi
done|sort|column -t

echo
echo "################################################################################"
echo "# Node Managers"
echo "# <owner> <mw_home> <pid> <port>"
echo "################################################################################"
ps -ef | grep "[w]eblogic.NodeManager"|while read tmp
do
owner=`echo $tmp | awk '{ print $1 }'`
pid=`echo $tmp | awk '{ print $2 }'`
port=`echo $tmp | netstat -tlpn 2>/dev/null | grep $pid | awk '{ print $4 }' | tr '\n' ',' | tr ' ' ',' | grep -o ":....," | sort -u | tr -d '\n' | tr -d ':' | sed 's/,$//'`
if [ -z "$port" ]; then
    port="null"
fi
mw_home=`echo $tmp | grep -oP "(?<=bea.home=)[^ ]+"`
if [ -n "$1" ]; then
    echo "$owner $mw_home $pid $port kill -9 $pid"
else
    echo "$owner $mw_home $pid $port"
fi
done|sort|column -t

OUTPUT:

################################################################################

# WebLogic Servers

# <owner> <domain> <server> <pid> <ports>

################################################################################

oracle AdminServer 3383 7013

oracle GCDomain EMGC_OMS1 15149 7301

root AdminServer 30664 7007

root AdminServer 58600 7004

root AdminServer 59677 5060,7001

root AdminServer 59902 7012

################################################################################

# Node Managers

# <owner> <mw_home> <pid> <port>

################################################################################

oracle 14819 7403

Downloading and Importing a GPG Key

Under some circumstances, such as when installing additional software in a virtual machine domain, you might need to download and import the GPG key to use with yum. To obtain and import a GPG key from the public yum repository:

Download the GPG key, for example with the the wget command.
```
# wget http://public-yum.oracle.com/RPM-GPG-KEY-oracle-ol7
```
The following are the available GPG keys:

Check the fingerprint of the GPG key with the gpg command to make sure it matches the key published by Oracle.

# gpg --quiet --with-fingerprint ./RPM-GPG-KEY-oracle-0l7

The following are the published keys:

Oracle Linux 6 and 7:

pub 2048R/EC551F03 2010-07-01 Oracle OSS group (Open Source Software group)
      Key fingerprint = 4214 4123 FECF C55B 9086 313D 72F9 7B74 EC55 1F03

Oracle Linux 5:

pub 1024D/1E5E0159 2007-05-18 Oracle OSS group (Open Source Software group)
      Key fingerprint = 99FD 2766 28EE DECB 5E5A F5F8 66CE D3DE 1E5E 0159 
sub 1024g/D303656F 2007-05-18 [expires: 2015-05-16]

Oracle Linux 4:

pub 1024D/B38A8516 2006-09-05 Oracle OSS group (Open Source Software group)
      Key fingerprint = 1122 A29A B257 825F 322C 234E 2E2B CDBC B38A 8516
sub 2048g/0042D4F4 2006-09-05 [expires: 2011-09-04]

If the fingerprint matches, import the GPG key with the rpm command.
```
# rpm --import ./RPM-GPG-KEY-oracle-ol7
```

Oracle Database 12c Release 1 (12.1) Installation On Oracle Linux 6

This article describes the installation of Oracle Database 12c Release 1 (12.1) (64-bit) on Oracle Linux 6 (64-bit). The article is based on a server installation with a minimum of 2G swap, with SELinux set to permissive and the firewall disabled. The following package groups were included for this installation.

Base System > Base
Base System > Compatibility libraries
Base System > Hardware monitoring utilities
Base System > Large Systems Performance
Base System > Network file system client
Base System > Performance Tools
Base System > Perl Support
Servers > Server Platform
Servers > System administration tools
Desktops > Desktop
Desktops > Desktop Platform
Desktops > Fonts
Desktops > General Purpose Desktop
Desktops > Graphical Administration Tools
Desktops > Input Methods
Desktops > X Window System
Applications > Internet Browser
Development > Additional Development
Development > Development Tools

An example of this type of Linux installations can be seen here. Alternative installations may require more packages to be loaded, in addition to the ones listed below.

Download Software

Download the Oracle software from OTN or MOS depending on your support status.

This article has been updated for the 12.1.0.2 release, but the installation is essentially unchanged since 12.1.0.1. Any variations specific for 12.1.0.1 will be noted.

Depending on your version of VirtualBox and Oracle Linux, there may be some slight variation in how the screen shots look.

Unpack Files

Unzip the files.

unzip linuxamd64_12102_database_1of2.zip
unzip linuxamd64_12102_database_2of2.zip

You should now have a single directory called "database" containing installation files.

Hosts File

The "/etc/hosts" file must contain a fully qualified name for the server.

<IP-address>  <fully-qualified-machine-name>  <machine-name>

For example.

127.0.0.1       localhost.localdomain  localhost
192.168.0.210   ol6-121.localdomain    ol6-121

Oracle Installation Prerequisites

Perform either the Automatic Setup or the Manual Setup to complete the basic prerequisites. The Additional Setup is required for all installations.

Automatic Setup

If you plan to use the "oracle-rdbms-server-12cR1-preinstall" package to perform all your prerequisite setup, issue the following command.

# yum install oracle-rdbms-server-12cR1-preinstall -y

Earlier versions of Oracle Linux required manual setup of the Yum repository by following the instructions at http://public-yum.oracle.com.

It is probably worth doing a full update as well, but this is not strictly speaking necessary.

# yum update

Manual Setup

If you have not used the "oracle-rdbms-server-12cR1-preinstall" package to perform all prerequisites, you will need to manually perform the following setup tasks.

Add or amend the following lines in the "/etc/sysctl.conf" file.

fs.file-max = 6815744
kernel.sem = 250 32000 100 128
kernel.shmmni = 4096
kernel.shmall = 1073741824
kernel.shmmax = 4398046511104
net.core.rmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048576
fs.aio-max-nr = 1048576
net.ipv4.ip_local_port_range = 9000 65500

Run the following command to change the current kernel parameters.

/sbin/sysctl -p

Add the following lines to the "/etc/security/limits.conf" file.

oracle   soft   nofile    1024
oracle   hard   nofile    65536
oracle   soft   nproc    16384
oracle   hard   nproc    16384
oracle   soft   stack    10240
oracle   hard   stack    32768

Install the following packages if they are not already present.

# From Public Yum or ULN
yum install binutils -y
yum install compat-libcap1 -y
yum install compat-libstdc++-33 -y
yum install compat-libstdc++-33.i686 -y
yum install gcc -y
yum install gcc-c++ -y
yum install glibc -y
yum install glibc.i686 -y
yum install glibc-devel -y
yum install glibc-devel.i686 -y
yum install ksh -y
yum install libgcc -y
yum install libgcc.i686 -y
yum install libstdc++ -y
yum install libstdc++.i686 -y
yum install libstdc++-devel -y
yum install libstdc++-devel.i686 -y
yum install libaio -y
yum install libaio.i686 -y
yum install libaio-devel -y
yum install libaio-devel.i686 -y
yum install libXext -y
yum install libXext.i686 -y
yum install libXtst -y
yum install libXtst.i686 -y
yum install libX11 -y
yum install libX11.i686 -y
yum install libXau -y
yum install libXau.i686 -y
yum install libxcb -y
yum install libxcb.i686 -y
yum install libXi -y
yum install libXi.i686 -y
yum install make -y
yum install sysstat -y
yum install unixODBC -y
yum install unixODBC-devel -y

Create the new groups and users.

groupadd -g 54321 oinstall
groupadd -g 54322 dba
groupadd -g 54323 oper
#groupadd -g 54324 backupdba
#groupadd -g 54325 dgdba
#groupadd -g 54326 kmdba
#groupadd -g 54327 asmdba
#groupadd -g 54328 asmoper
#groupadd -g 54329 asmadmin

useradd -u 54321 -g oinstall -G dba,oper oracle

Uncomment the extra groups you require.

Additional Setup

The following steps must be performed, whether you did the manual or automatic setup.

Set the password for the "oracle" user.

passwd oracle

Amend the "/etc/security/limits.d/90-nproc.conf" file as described below. See MOS Note [ID 1487773.1]

# Change this
*          soft    nproc    1024

# To this
* - nproc 16384

Set secure Linux to permissive by editing the "/etc/selinux/config" file, making sure the SELINUX flag is set as follows.

SELINUX=permissive

Once the change is complete, restart the server or run the following command.

# setenforce Permissive

If you have the Linux firewall enabled, you will need to disable or configure it, as shown here or here. To disable it, do the following.

# service iptables stop
# chkconfig iptables off

Create the directories in which the Oracle software will be installed.

mkdir -p /u01/app/oracle/product/12.1.0.2/db_1
chown -R oracle:oinstall /u01
chmod -R 775 /u01

Putting mount points directly under root is typically a bad idea. It's done here for simplicity, but for a real installation "/" should be reserved for the OS.

Unless you are working from the console, or using SSH tunnelling, login as root and issue the following command.

xhost +<machine-name>

Add the following lines at the end of the "/home/oracle/.bash_profile" file.

# Oracle Settings
export TMP=/tmp
export TMPDIR=$TMP

export ORACLE_HOSTNAME=ol6-121.localdomain
export ORACLE_UNQNAME=cdb1
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/12.1.0.2/db_1
export ORACLE_SID=cdb1

export PATH=/usr/sbin:$PATH
export PATH=$ORACLE_HOME/bin:$PATH

export LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib
export CLASSPATH=$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib

Installation

Log into the oracle user. If you are using X emulation then set the DISPLAY environmental variable.

DISPLAY=<machine-name>:0.0; export DISPLAY

Start the Oracle Universal Installer (OUI) by issuing the following command in the database directory.

./runInstaller

Proceed with the installation of your choice.

If you are doing an installation for an Enterprise Manager repository, remember to do an advanced installation and pick the ALT32UTF8 character set.

You can see the type of installation I performed by clicking on the links below to see screen shots of each stage.

The "Database Configuration Assistant Complete" screen displays the Database Express 12c URL, which will be something like "https://ol6-121.localdomain:5500/em".

Post Installation

Edit the "/etc/oratab" file setting the restart flag for each instance to 'Y'.

cdb1:/u01/app/oracle/product/12.1.0.2/db_1:Y

If Database Express 12c is not working, check the XMLDB HTTP port. If it is 0, set it to the port you want to use.

SQL> SELECT dbms_xdb_config.gethttpsport FROM dual;

GETHTTPSPORT
------------
        5500

SQL> EXEC dbms_xdb_config.sethttpsport(5500);

PL/SQL procedure successfully completed.

SQL>

Common Errors

"error code 35" : The machine name in the "/etc/hosts" file is not correct. It needs an entry for the loopback adapter (localhost) and the machine name. If you are using DNS for name resolution, you still need the loopback adapter reference in this file.
"error code 37" : The DNS not working properly. You may also get this error is the "/etc/hosts" file is not configured correctly.
"sqlplus: error while loading shared libraries: libclntsh.so.12.1" : The prerequisites have not been met. Work through them again. Specifically, make sure the "gcc" package has been installed.
Listener fails to start - Typically this is due to incorrect name resolution. Make sure the "/etc/hosts" and/or DNS is configured correctly.
Linking errors - Almost always due to missing prerequisites. Review the setup sections.

Remove the target from EM manually using the emcli

1- On your main Enterprise Manager Repository logon to your emcli utility.

2- Once conected run the sync command:

3 – Now let’s remove the target manually using the emcli command line utility:

List running Weblogic servers and Node Managers

Downloading and Importing a GPG Key

Oracle Database 12c Release 1 (12.1) Installation On Oracle Linux 6

Download Software

Unpack Files

Hosts File

Oracle Installation Prerequisites

Automatic Setup

Manual Setup

Additional Setup

Installation

Post Installation

Common Errors