1.2. Installing and Configuring Data Warehouse on a Separate Machine
1.2. Installing and Configuring Data Warehouse on a Separate Machine This section describes installing and configuring the Data Warehouse service on a separate machine from the Red Hat Virtualization Manager. Installing Data Warehouse on a separate machine helps to reduce the load on the Manager machine. Note You can install the Data Warehouse database on a machine separate from the Data Warehouse service. Prerequisites The Red Hat Virtualization Manager is installed on a separate machine. A physical server or virtual machine running Red Hat Enterprise Linux 7. The Manager database password. Access from the Data Warehouse machine to the Manager database machine's TCP port 5432. If you choose to install the Data Warehouse database separately from the Data Warehouse service, you must set up the database first. To install a remote Data Warehouse database manually, see Preparing a Remote PostgreSQL Database . You must have the following information about the database machine: The FQDN The port through which the database can be reached (5432 by default) The database name The database user The database password You must manually grant access by editing the postgresql.conf file. Edit the /var/opt/rh/rh-postgresql10/lib/pgsql/data/postgresql.conf file and modify the listen_addresses line so that it matches the following: If the line does not exist or has been commented out, add it manually. Enabling the Red Hat Virtualization Manager Repositories Register the system with Red Hat Subscription Manager, attach the Red Hat Virtualization Manager subscription, and enable Manager repositories. Procedure Register your system with the Content Delivery Network, entering your Customer Portal user name and password when prompted: Note If you are using an IPv6 network, use an IPv6 transition mechanism to access the Content Delivery Network and subscription manager. Find the Red Hat Virtualization Manager subscription pool and record the pool ID: Use the pool ID to attach the subscription to the system: Note To view currently attached subscriptions: To list all enabled repositories: Configure the repositories: Installing Data Warehouse on a Separate Machine Log in to the machine where you want to install the database. Ensure that all packages are up to date: Install the ovirt-engine-dwh-setup package: Run the engine-setup command to begin the installation: Ensure you answer No when asked whether to install the Manager on this machine: Answer Yes to install Data Warehouse on this machine: Press Enter to accept the automatically-detected host name, or enter an alternative host name and press Enter : Press Enter to automatically configure the firewall, or type No and press Enter to maintain existing settings: If you choose to automatically configure the firewall, and no firewall managers are active, you are prompted to select your chosen firewall manager from a list of supported options. Type the name of the firewall manager and press Enter . This applies even in cases where only one option is listed. Enter the fully qualified domain name of the Manager machine, and then press Enter : Press Enter to allow setup to sign the certificate on the Manager via SSH: Press Enter to accept the default SSH port, or enter an alternative port number and then press Enter : Enter the root password for the Manager machine: Specify whether to host the Data Warehouse database on this machine (Local), or on another machine (Remote): If you select Local , the engine-setup script can configure your database automatically (including adding a user and a database), or it can connect to a preconfigured local database: If you select Automatic by pressing Enter , no further action is required here. If you select Manual , input the following values for the manually-configured local database: Enter the fully qualified domain name and password for the Manager database machine. If you are installing the Data Warehouse database on the same machine where the Manager database is installed, use the same FQDN. Press Enter to accept the default values in each other field: Choose how long Data Warehouse will retain collected data: Full uses the default values for the data storage settings listed in Application Settings for the Data Warehouse service in ovirt-engine-dwhd.conf (recommended when Data Warehouse is installed on a remote host). Basic reduces the values of DWH_TABLES_KEEP_HOURLY to 720 and DWH_TABLES_KEEP_DAILY to 0 , easing the load on the Manager machine. Use Basic when the Manager and Data Warehouse are installed on the same machine. Confirm your installation settings: After the Data Warehouse configuration is complete, on the Red Hat Virtualization Manager, restart the ovirt-engine service: Optionally, set up SSL to secure database connections using the instructions at link: https://www.postgresql.org/docs/10/ssl-tcp.html#SSL-FILE-USAGE .
listen_addresses = '*' subscription-manager register subscription-manager list --available subscription-manager attach --pool= pool_id subscription-manager list --consumed yum repolist subscription-manager repos --disable='*' --enable=rhel-7-server-rpms --enable=rhel-7-server-supplementary-rpms --enable=rhel-7-server-rhv-4.3-manager-rpms --enable=rhel-7-server-rhv-4-manager-tools-rpms --enable=rhel-7-server-ansible-2-rpms --enable=jb-eap-7.2-for-rhel-7-server-rpms yum update yum install ovirt-engine-dwh-setup engine-setup Configure Engine on this host (Yes, No) [Yes]: No Configure Data Warehouse on this host (Yes, No) [Yes]: Host fully qualified DNS name of this server [ autodetected hostname ]: Setup can automatically configure the firewall on this system. Note: automatic configuration of the firewall may overwrite current settings. Do you want Setup to configure the firewall? (Yes, No) [Yes]: Host fully qualified DNS name of the engine server []: Setup will need to do some actions on the remote engine server. Either automatically, using ssh as root to access it, or you will be prompted to manually perform each such action. Please choose one of the following: 1 - Access remote engine server using ssh as root 2 - Perform each action manually, use files to copy content around (1, 2) [1]: ssh port on remote engine server [22]: root password on remote engine server manager.example.com : Where is the DWH database located? (Local, Remote) [Local]: Setup can configure the local postgresql server automatically for the DWH to run. This may conflict with existing applications. Would you like Setup to automatically configure postgresql and create DWH database, or prefer to perform that manually? (Automatic, Manual) [Automatic]: DWH database secured connection (Yes, No) [No]: DWH database name [ovirt_engine_history]: DWH database user [ovirt_engine_history]: DWH database password: Engine database host []: engine-db-fqdn Engine database port [5432]: Engine database secured connection (Yes, No) [No]: Engine database name [engine]: Engine database user [engine]: Engine database password: password Please choose Data Warehouse sampling scale: (1) Basic (2) Full (1, 2)[1]: Please confirm installation settings (OK, Cancel) [OK]: systemctl restart ovirt-engine