Detailed explanation of zombie process and orphan process in Linux

This article mainly introduces the relevant contents of zombie process and orphan process in Linux, and shares them for your reference. Let's take a look at the detailed introduction: 1. Zombie process A child process exits without calling wait () or waitpid () from its parent process

2022-06-02 Servers 我要分享

How to use DBMS_REPAIR to repair Bad blocks in Oracle

This article mainly shows you "how to use DBMS_REPAIR to repair bad blocks in Oracle". The content is easy to understand and clear. I hope it can help you solve your doubts. Let the editor lead you to study and learn how to use D in Oracle.

2022-05-31 Database 我要分享

Oracle 12c New feature maintenance Table Partition Global Index does not fail

1. Official documentation of the new feature (3) use the new feature update indexes clause # update indexes to update all indexes, global or local, and when using update indexes to update global

2022-06-01 Database 我要分享

The reasons for the emergence of Bytom solitary blocks and the introduction of related operations

This article mainly introduces "the reasons for the emergence of Bytom blocks and the introduction of related operations". In the daily operation, I believe that many people have doubts about the reasons for the emergence of Bytom blocks and the introduction of related operations. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods.

2022-06-02 Internet Technology 我要分享

Recover data block bad block

July 22, 2014 studies the recovery of bad blocks in databases: Oracle calls standard C system functions to read and write data blocks. Therefore, bad blocks may be caused by the following reasons: hardware I Universe errors, operating system I Unix O errors or buffering problems, memory or paging problems.

2022-06-01 Database 我要分享

How to understand incarnation in rman

How to understand incarnation in rman, many novices are not very clear about this, in order to help you solve this problem, the following editor will explain in detail for you, people with this need can come to learn, I hope you can gain something. Incarnation in English is

2022-05-31 Database 我要分享

LIST INCARNATION OF DATABASE meaning

The http://blog.itpub.net/7259433/viewspace-2146710/Resetlogs command represents the end of one database logical lifetime and the beginning of another database logical lifetime, each time Resetl is used

2022-06-01 Database 我要分享

The method of solving oracle Database ORA-01081: cannot start already-running ORACLE-shut it down first

This article mainly introduces the method of solving oracle database ORA-01081: cannot start already-running ORACLE-shut it down first, which is introduced in great detail.

2022-06-01 Database 我要分享

RMAN restore fails with ORA-01180: can not create datafile 1 (document ID 1265151.1)

In this DocumentSymptomsCauseSolutionAPPLIES TO:Oracle Database-Enterprise Edition-Version 9.2.0

2022-06-01 Database 我要分享

Oracle incarnation

One. Official illustration this picture involves three versions of the avatar Incarnation. Incarnation 1: the lowest black horizontal line starts with SCN1, goes through SCN1000, and ends with SCN2000, which is the first avatar of the database, called

2022-06-01 Database 我要分享

Common chain knowledge that everyone should learn-- compared to the original overall structure

This article will introduce you to the overall technical architecture of the original chain. The following figure shows: than the original chain is divided into three levels, the first layer is more contact with the wallet layer, that is, the collection and payment module, the wallet generally with an operating interface, everyone can be used on a daily basis, so it will be more familiar. And then the most

2022-06-03 Internet Technology 我要分享

ORA-01081: & quot;cannot start already-running ORACLE-shut it down first"

Applies to: Oracle Server-Enterprise Edition-Version: 8.1.7.4 to 11.2.0.2.0-Release: 8.1.7 to

2022-06-01 Database 我要分享

Parent and child processes

Parent process in the computer domain, a parent process (English: Parent Process) refers to a process that has created one or more child processes. UNIX in UNIX, all processes except process 0 (that is, the exchange process of PID=0, Swapper Process)

2022-06-02 Servers 我要分享

Methods of clearing disk space on CentOS 6 or CentOS 7

The following is a quick command to clear disk space on a CentOS 6 or CentOS 7 server. First, you need to install the yum-utils package: yum- y install yum-utils1. Prune the log file find / var-nam

2022-06-02 Servers 我要分享

How to clear disk space on CentOS

This article mainly explains "how to clear the disk space on CentOS". The content in the article 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 clear disk space on CentOS". The following is the removal of ce

2022-05-31 Internet Technology 我要分享

Causes and Solutions of Linux Zombie process

Linux allows a process to query the kernel for the PID of its parent process, or the execution status of any of its child processes. For example, a process can create a child process to perform a specific task, and then call some library functions such as wait () to check whether the child process is terminated. If Zijin

2022-06-02 Servers 我要分享

How to turn the page with Django

This article will explain in detail how to turn the page on Django. The editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article. 1. Views module imports Paginator class to realize data paging ApiTes

2022-06-01 Development 我要分享

How do classic init systems handle orphaned processes?

The process identifier (PID) is the unique identifier provided by the Linux kernel for each process. Students who are familiar with docker know that all process PID belongs to a certain PID namespaces, that is, the container has its own set of PID.

2022-06-03 Internet Technology 我要分享

How to clean up disk space in Linux system

This article mainly shows you "Linux system how to clean disk space", the content is easy to understand, clear, hope to help you solve doubts, the following let the editor lead you to study and learn "Linux system how to clean disk space" this article. 1. Shift

2022-06-01 Development 我要分享

How to free up Linux operating system space

This article is about how to free up the space of the Linux operating system. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look. 1. Remove packages that are no longer needed if you know apt-get or apt life

2022-06-01 Servers 我要分享