Upgrading a PEM native package installation on a Linux host v8

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To upgrade PEM component software on Linux hosts, install a newer version of the PEM component native packages in the following order:

  1. Invoke the PEM agent native package installer on each monitored node except the PEM server host.
  2. Invoke the PEM server native package installer. it upgrades both the PEM server and the PEM agent that resides on the PEM server host.

During an installation, the component installation automatically detects an existing installation and performs an upgrade. After upgrading the PEM agent and server, you can upgrade SQL Profiler if required. That step is platform specific.

Note

If you already configured or are planning to configure any shell/batch script run by a Linux agent that's upgraded from any earlier version to version 7.11 or later, you must speciy the user for the batch_script_user parameter in the agent.cfg file. We strongly recommended that you use a non-root user to run the scripts. Using the root user can result in compromising the data security and operating system security. However, if you want to restore the pemagent to its original settings using a root user to run the scripts, then you must set the batch_script_user parameter to root.

Prerequisites to upgrade a PEM installation on Linux host

PEM depends on third-party components from the vendor repository, including python3, libboost, openssl, snmp++, and libcurl. To ensure these components are up to date, update your operating system using platform-specific commands.

The minimum version required for openssl is 1.0.2k. If you're using a version of PostgreSQL or EDB Postgres Advanced Server earlier than version 10, before the upgrade you must install the libs package for version 10 or above on the system where the PEM server is installed. Use the following platform-specific commands to install the libs version 10 or above on your host.

Prerequisites to upgrade a PEM installation on a CentOS or RHEL host

To upgrade packages on a CentOS or RHEL 7.x host:

yum update
yum upgrade

To upgrade packages on a Rocky Linux or AlmaLinux or RHEL 8.x host:

dnf update
dnf upgrade

To upgrade EDB Postgres Advanced Server libs:

yum install edb-as<X>-server-libs

To upgrade PostgreSQL libs:

yum install postgresql<X>-libs

Where <X> is the PostgreSQL or EDB Postgres Advanced Server version whose libs package you want to install.

Prerequisites to upgrade a PEM installation on a Debian or Ubuntu host

To upgrade packages on a Debian or Ubuntu host:

apt-get update
apt-get upgrade

To upgrade Advanced Server libs:

apt-get install edb-as<X>-server-libs

To upgrade PostgreSQL libs:

apt-get install postgresql<X>-libs

Where <X> is the PostgreSQL or EDB Postgres Advanced Server version whose libs package you want to install.

Prerequisites to upgrade a PEM installation on a SLES host

To upgrade packages on a SLES host:

zypper update
zypper upgrade

To upgrade EDB Postgres Advanced Server libs:

zypper install edb-as<x>-server-libs

To upgrade PostgreSQL libs:

zypper install postgresql<x>-libs

Where <X> is the PostgreSQL or EDB Postgres Advanced Server version whose libs package you want to install.

Upgrading a PEM agent native package installation

You can use native packages to upgrade existing PEM agents initially installed using native packages. The upgrade process doesn't update the PEM agent configuration file. After installing the new agent, you must manually copy the configuration file of the existing agent to the new installation location.

Upgrading the PEM agent on a CentOS or RHEL host

For CentOS or RHEL 7.x or RHEL 8.x, to upgrade a PEM agent, use the following command:

yum upgrade edb-pem-agent

For Rocky Linux or AlmaLinux or RHEL 8.x, you can also use the following command:

dnf upgrade edb-pem-agent

Upgrading a PEM agent on a Debian or Ubuntu host

To upgrade a PEM agent, use the following command:

apt-get upgrade edb-pem-agent

Upgrading a PEM agent on a SLES host

To upgrade a PEM agent, use the following command:

zypper update edb-pem-agent

Upgrading a PEM server native package installation

If you initially used native packages to install your PEM server, you can use native packages to upgrade your PEM server. The commands to upgrade are platform specific.

If you want to upgrade a PEM server that is installed on a machine in an isolated network, you need to create a PEM repository on that machine before you upgrade the PEM server. For more information about creating a PEM repository on an isolated network, see Creating a PEM Repository on an Isolated Network.

Upgrading a PEM server on a CentOS, Rocky Linux, AlmaLinux, or RHEL host

To use an RPM package to upgrade an existing RPM installation, you can use the yum package manager to upgrade the installed version of the PEM server on CentOS/RHEL 7.x or Rocky Linux/AlmaLinux/RHEL 8.x:

yum upgrade edb-pem

You can also use the dnf command on Rocky Linux/AlmaLinux/RHEL 8.x:

dnf upgrade edb-pem
Note

If you're doing a fresh installation of the PEM server on CentOS or RHEL 7.x host, the installer installs the edb-python3-mod_wsgi package along with the installation. The package is a requirement of the operating system. If you are upgrading the PEM server on CentOS or RHEL 7.x host, thethe edb-python3-mod_wsgi packages replaces the mod_wsgi package package to meet the requirements of the operating system.

After upgrading the PEM server using yum or the dnf command, you must configure the PEM server. For detailed information, see Configuring the PEM server.

Upgrading the PEM server on a Debian or Ubuntu host

You can use the apt-get package manager to upgrade the installed version of the PEM server on supported versions of Debian or Ubuntu:

apt-get upgrade edb-pem

After upgrading the PEM server with apt-get, you need to configure the PEM server. For detailed information, see Configuring the PEM server.

Upgrading the PEM server on a SLES host

You can use the zypper package manager to upgrade the installed version of the PEM Server on supported versions of a SLES host:

zypper update edb-pem

After upgrading the PEM server using zypper, you need to configure the PEM server. For detailed information, see Configuring the PEM server.

Note

If you upgrade the PEM backend database server and the PEM server, update the PG_INSTALL_PATH and DB_UNIT_FILE parameters pointing to the new version in the /usr/edb/pem/share/.install-config file before you run the configure script.

Configuring the PEM server

After upgrading the PEM server, you can use the following command to configure the PEM server:

/usr/edb/pem/bin/configure-pem-server.sh

The configure script uses the values from the old PEM server configuration file while running the script.

After executing the PEM server configuration file, use your version-specific service control command to restart the httpd service.

For detailed information, see Configuring the PEM server on Linux platforms.

Note

From PEM version 7.11 and later, the configure script requires a superuser password only after the upgrade process.

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