RAC modifies single instance DG redo size log

The solution is to add standby redo to the primary library to delete the old standby redo, then add standby redo to the main library to delete the old standby redo, add new redo to the main library to delete the old standby redo, and finally add re to the standby library.

2022-06-01 Database 我要分享

Windows_learn 002 user Management and Group Policy

Windows_learn 002 user management and group policy content overview domain users and groups administrative users and group login add user tools use groups in the active directory why use groups? Global group Global Group Rules domain local group Domai

2022-06-02 Servers 我要分享

Installation Oracle11gR2 RAC--- modifies the online log

Connect to the database server, query existing online log group information, and add online log groups. Connected to Oracle Database 11g Enterprise Edition Release 11.2.0.4.0C

2022-06-01 Database 我要分享

Say that the log of MGR-MGR

Scenario 1 mysql01.com operation of the launch log of the Magi MGR 1. [root @ mysql.sock] [(none)] > CHANGE MASTER TO MASTER_USER='rpl_user', MASTE

2022-06-01 Database 我要分享

MySQL 5.7.17 Group Replication

The powerful function based on group replication was implemented as a plug-in after MySQL 5.7.17. This paper describes how to build a test environment for group replication on the basis of single machine and multiple instances. Description: operating system: CentOS Linux release 7.3.1611 (Cor)

2022-06-01 Database 我要分享

How to understand the group and group administrator in Linux user system

This article introduces the knowledge of "how to understand groups and group administrators in Linux user systems". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and learn.

2022-06-01 Servers 我要分享

How to understand the ROLLUP of Oracle grouping function

How to understand the ROLLUP of Oracle grouping function? in view of this problem, this article introduces the corresponding analysis and solution in detail, hoping to help more partners who want to solve this problem to find a more simple and feasible method. Give the Oracle ROLLUP grouping letter through the demonstration.

2022-06-01 Servers 我要分享

Teach you to play Linux- user group management.

Each user has a user group, and the system can centrally manage all users in a user group. Different Linux systems have different rules for user groups, for example, users under Linux belong to a user group with the same name, which is created at the same time as the user is created. Management of user group

2022-06-02 Servers 我要分享

MySQL 5.7.17 how to build a test environment for group replication on the basis of single machine and multiple instances

Let me tell you a little bit about how to build a group replication test environment based on MySQL 5.7.17 on a stand-alone multi-instance basis. Have you learned about similar topics before? If you are interested, let's take a look at this article. I believe that after reading MySQL 5.7.17, it will be more real on a single machine.

2022-06-01 Database 我要分享

How to create a resource plan with pending area

This article introduces the knowledge of "how to create a resource plan with pending area". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and learn something.

2022-05-31 Database 我要分享

Summary of common commands for linux user and group management

This article summarizes common commands for linux user and group management. Share with you for your reference, the details are as follows: 1, the user belongs to the user group. 2. User and user group profile 1) user group profile / etc/group first column: group name of user group second column: group password (true

2022-06-02 Servers 我要分享

Key parameters description of MGR-MGR

Transaction_write_set_extraction=XXHASH64Defines the algorithm used to generate a hash identifying t

2022-06-01 Database 我要分享

Detailed explanation of characteristic Resource Management of MySQL8.0

This article mainly introduces the characteristics of MySQL8.0 resource management details, hoping to supplement and update some knowledge, if there are other issues you need to know, you can continue to follow my updated article in the industry information. MySQL supports the creation and management of resource groups, and allows cloud servers to be

2022-06-01 Database 我要分享

What are the functions and methods of java ThreadGroup?

This article mainly explains "what are the functions and methods of java ThreadGroup". The content of the explanation in the article is simple and clear, and it is easy to learn and understand. now please follow the editor's train of thought to study and learn the works of java ThreadGroup.

2022-06-03 Development 我要分享

[temporary table space group] creation, maintenance and application of temporary table space group

For the concept and brief description of temporary tablespace groups, please refer to the "Oracle Database SQL Reference" (http://download.oracle.com/docs/cd/B1) of the official Oracle documentation.

2022-06-02 Servers 我要分享

How to plan the Wechat group purchase Mini Program activity

This article introduces the relevant knowledge of "how to plan Wechat group purchase Mini Program activities". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something! I. Group purchase mode

2022-06-01 Development 我要分享

What is the use of java high concurrency midline group

This article mainly introduces what is the use of java high concurrency middle thread group. It is very detailed and has certain reference value. Friends who are interested must finish it! Thread group We can group threads into a thread group, which can contain multiple threads as well as thread groups, threads and threads.

2022-06-02 Development 我要分享

Key process of MySQL Group Replication mgr installation

1. Initialize and start mysql/bin/mysqld-- initialize-insecure-- basedir=/mgr/mysql-- datadir=/mgr/data/s1mysql/bin/

2022-06-01 Database 我要分享

GROUPING & GROUPING_ID & GROUP_ID & GROUPING SETS

The grouping () function must accept one column and only one column as its argument. The parameter column value returns 1 if the parameter column value is empty, and 0 if the parameter column value is not empty. Second, the grouping_id () function GROUPING_ID can receive multiple columns and return values in the order of parameters.

2022-06-01 Database 我要分享

How to add a user to a group in Linux

In this issue, the editor will bring you about how to add users to the group in Linux. The article is rich in content and analyzed and described from a professional point of view. I hope you can get something after reading this article. The preface Linux group is used to manage user accounts in Linux

2022-06-01 Servers 我要分享