oracle monitoring installation

Oracle database is currently the most widely used commercial database management system in the world. It adopts a client/server architecture and has excellent performance in high-load, large-scale enterprise application systems and is widely used. In finance, telecommunications, medical, electric power, government and other industries. During the installation process of the Oracle database, the listener is a very critical link. It is used to monitor the client's connection request and forward it to the Oracle service process to ensure the normal operation of the database. This article will introduce you to the installation and configuration process of Oracle monitoring and help you successfully complete the installation of Oracle database.

1. Install the Oracle database

Before introducing the monitoring installation, we need to complete the installation of the Oracle database first. The Oracle database installation process needs to be carried out in accordance with official documents. Here we only introduce some common problems and solutions.

1. Operating system version

Oracle database supports multiple operating systems. Different versions of the database correspond to different operating system versions. You need to carefully check the official documentation before installation to confirm Does the local operating system meet the requirements? Otherwise, the installation may fail or cause the installed database to not function properly.

2. Installation sequence

The installation sequence of Oracle database is very important. Normally, you need to install the database software first and then create the database instance. Among them, the installation of database software is relatively simple, just follow the official documentation. However, you need to pay attention to the following points when creating a database instance:

(1) Confirm whether the character set of the local operating system supports the character set of the database instance;

(2) Confirm whether the parameters of the database instance The settings are correct, such as memory allocation, storage path, etc.;

(3) Confirm whether Oracle's default user password has been changed. If so, you need to enter the correct password when creating a database instance.

2. Monitoring installation

After completing the installation of the database, the next step is the installation process of monitoring. Listening is an important part of the Oracle database. It is responsible for monitoring client connection requests and forwarding them to the Oracle service process. It also manages network communications with other Oracle instances. Oracle database supports multiple types of monitoring, including TCP/IP, Unix Domain Socket, etc. Below we will use TCP/IP as an example to introduce the installation and configuration process of monitoring.

1. Monitoring installation

There is a Netca file in the Oracle database installation directory, which is a configuration tool for monitoring installation. After opening the file, follow the steps below:

(1) Select "Configure Net Service name and Listener" and click "Next";

(2) Select "Listener Configuration" and click “Next”;

(3) Select “Add” and click “Next”;

(4) Enter the listening name, listening protocol type (TCP), listening address, listening port and other necessary information, and specify a password for management monitoring (the password must be different from the Oracle username and password);

(5) Click "Next" and complete subsequent settings until the "Summary" interface appears;

(6) Click "Finish" to complete the monitoring configuration.

2. Monitoring configuration

After the monitoring installation is completed, you also need to configure the monitoring operating parameters. The Oracle listening configuration file is located under Oracle_Home/network/admin/, and the file name is listener.ora. In this file, you can configure Oracle monitoring parameters, such as monitoring name, listening address, listening port, logging, etc. The following is a sample configuration file:

# listener.ora Network Configuration File: /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
# Generated by Oracle configuration tools.

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST =localhost)(PORT = 1521))
    )
  )

ADR_BASE_LISTENER = /u01/app/oracle

In this file, LISTENER is the listening name, (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost)(PORT=1521))) is the listening name Address and port configuration. You can modify the parameters as needed. After saving the configuration file, you need to restart the Oracle database instance and the listening service to take effect. You can use the following command to check the status of the listener:

$ lsnrctl status [listener_name]

At this time, if the prompt "Listener is running" is displayed, it means that the listener has been successfully run.

3. Summary

This article introduces the installation and configuration process of Oracle database monitoring. The premise is to complete the installation of the Oracle database, then install the monitoring through Netca, and finally configure the monitoring operating parameters under Oracle_Home/network/admin/. In actual work, the monitoring parameters need to be modified according to specific needs to ensure that the Oracle database can operate normally.

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