Oracle Study-AIX6.1 to build Oracle 11gR2 RAC (2)

Oracle Study-AIX6.1 Construction Oracle 11gR2 RAC (2) I. modify system kernel parameters [root@aix209 app] # chdev-l sys0-a ncargs=256sys0

2022-06-01 Database 我要分享

Looney Tunables vulnerabilities are exposed, mainstream Linux distributions are affected

According to CTOnews.com news on October 6, a vulnerability named Looney Tunables has recently been exposed with tracking number CVE-2023-4911, including Debian 12 and Ubuntu 22.04.

2023-11-24 IT Information 我要分享

[AIX] AIX boot automatically mounts NFS shares

When AIX boots and mounts the NFS share automatically, when the Oracle is built on the AIX system for centralized backup, it may be necessary to backup the data to the storage device by connecting the Backup server mount NFS share. In the Linux environment, if you want to boot NFS

2022-06-02 Servers 我要分享

Optimizing Architecture-mixed Operation to realize Tunable 0 query

The full real-time query based on the database system can only expand the capacity of the database (including the means of sub-database) when the amount of data is very large, and the cost is high. If you use the mixed operation of file system and production database, you can achieve low-cost and high-performance Thum0 query!

2022-06-03 Internet Technology 我要分享

How to implement the class of creating pool with specified OSD by ceph

This article is about how ceph implements a class that specifies OSD to create a pool. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look. Earlier, we specified osd to create pool. The essence is to select part of the os.

2022-06-01 Internet Technology 我要分享

Oracle Study-AIX6.1 to build Oracle 10gR2 RAC (2)

Oracle Study-AIX6.1 build Oracle 10gR2 RAC (2) 1. Check the system I _ peg O (for Oracle databases you need to enable asynchronous I _ Unip O) for AIX6.1, the default asynchronous I _ Unip O is automatically activated when required, no

2022-06-01 Database 我要分享

AIO of Oracle (Asynchronous io)

Linux Asynchronous I AIO is an enhanced feature provided in the Linux kernel. It is a standard feature of the Linux 2.6 kernel. The basic idea behind AIO is to allow processes to initiate a lot of I cando O operations without blocking or waiting.

2022-06-01 Database 我要分享

How to understand the lexical analysis of PostgreSQL

This article mainly explains "how to understand the lexical analysis of PostgreSQL". The content of the explanation is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "how to understand the lexical analysis of PostgreSQL". one

2022-05-31 Database 我要分享

Expdp ORA-01555 (1)

Expdp ORA-01555 (1) Environment information: DB:Oracle 11.2.0.1.0OS:Windows Server 2012 Murray-sensitive data has been replaced question: expdp exports a large table with BLOG fields (2

2022-06-01 Database 我要分享

(14) Hibernate inheritance mapping

People always understand the essential needs of things when they lose them: animals, cats, monkeys 1, simple inheritance mapping Animal.javapackage com.rk.hibernate.n_inheritance1;public abstra

2022-06-01 Database 我要分享

Non-recursive traversal algorithm of middle order, first order and post-order traversal of binary tree (using stack, implemented by loop)

Typedef struct TreeNode * BinTree;typedef BinTree Position; struct TreeNode {ElementType Data

2022-06-01 Database 我要分享

Online Redefinition online redefinition (3)-- A case study of multi-table association redefinition

In the previous two blog posts, I listed two processes of online redefinition of a single table: Online Redefinition online redefinition (1): http://blog.itpub.net/31015730/viewspace-214454

2022-06-01 Database 我要分享

Ceph RBD deployment and management

RBD introduces that RBD block storage is the most widely used and stable of the three storage types provided by ceph. RBD blocks are similar to disks and can be mounted to physical or virtual machines. There are usually two ways to mount them: Kernel module (KRBD) uses QEMU simulator

2022-06-02 Servers 我要分享

How to convert a normal table to a partitioned table in the database

This article is about how to convert a normal table into a partitioned table in a database. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look. 1.1 BLOG document structure figure 1.2 Preface 1.2.1 introduction and attention

2022-05-31 Database 我要分享

Ceph manually deploys version 13.2

Install ceph official documentation 0. To prepare for deployment, you need to prepare three CentOS hosts before deployment. I use CentOS7.5 here, and upgrade the system kernel to 4.x long-term supported version. The relevant configuration information is as follows: node hostname and IP information loca

2022-06-02 Servers 我要分享

What are the AIX installation Oracle 11g RAC memory and network parameters

This article is to share with you about AIX installation Oracle 11g RAC memory and network parameters, the editor thinks it is very practical, so I share it with you to learn. I hope you can get something after reading this article. Let's take a look at it with the editor. one

2022-06-01 Servers 我要分享

Using GDB to debug a multithreaded example

Write a multithreaded program first. Makefile plus the-g parameter generates tunable information that can be debugged. Pthread is not the default library under Linux, that is, when linking, the entry address of the elder function in the phread library cannot be found, so the link will be lost.

2022-06-02 Servers 我要分享

How to monitor power usage and improve notebook battery life on Linux

This article mainly shows you "how to monitor battery usage and improve notebook battery life on Linux". The content is easy to understand and clear. I hope it can help you solve your doubts. Let me lead you to study and learn how to monitor power usage and battery life on Linux.

2022-06-01 Servers 我要分享

Oracle function-higher order

The following is an arrangement of some oracle functions-higher-order articles: 1. CATSTR example: SELECT CATSTR (COLUMN_NAME) NAME_LIST FROM DBA_TAB_COLUMNS WHERE TRIM

2022-06-01 Database 我要分享

Basic MySQL backup and recovery

MySQL backup recovery Foundation one, mysqldump command mysqldump this command can generally meet most of the backup needs, because this tool supports full database backup, single database backup, single table backup, or even logical backup, only backup table structure and other functions. Main command format:

2022-06-01 Database 我要分享