Diagnosing databases hang and Contention through the v$wait_chains view

Before 11g, usually after our database hang resides, we will do hang analyze to analyze the database. After 11g, we can diagnose the database hang and contentio through a new view v$wait_chains.

2022-06-01 Database 我要分享

How Oracle uses the hanganalyze command to analyze the database hang

Editor to share with you how Oracle uses the hanganalyze command to analyze the database hang. I hope you will get something after reading this article. Let's discuss it together. 1. Several possibilities of database hang oracle deadlock or

2022-06-01 Servers 我要分享

Example Analysis of hanganalyze

This article introduces you to the example analysis of hanganalyze, the content is very detailed, interested friends can refer to, hope to be helpful to you. ORACLE's HANGANALYZE has an abnormal condition in the database because hang lives and gives birth.

2022-06-01 Servers 我要分享

Library cache lock and library cache pin Simulation of 11G Database combined with hanganalyze Positioning

Session 1:SQL > select sid from v$mystat where rownum=1;SID-41SQL > create or replace procedu

2022-06-01 Database 我要分享

Library cache lock and pin Simulation of 1OG Database combined with hanganalyze location and systemdump location

Session 1:SQL > select sid from v$mystat where rownum=1;SID-148SQL > create or replace proced

2022-06-01 Database 我要分享

Ambernick RG Nano mini game handset goes on sale: can hang key chain, can be used as MP3, the price starts at 389 yuan

CTOnews.com Sept. 5 news, handset manufacturer Anbernic Ambernick has launched a RG Nano mini game handset, which is only the size of a keychain and can be hung around the waist. According to reports, Ambernick RG Nano uses aluminum alloy.

2023-11-24 IT Information 我要分享

How to understand the exchange protocol on bytom MOV chain

This article mainly explains "how to understand the exchange protocol on the bytom MOV chain". 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 understand the exchange protocol on the bytom MOV chain". go

2022-06-01 Internet Technology 我要分享

How to use hanganalyze in oracle

This article is about how to use hanganalyze in oracle. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look. There are two ways to use hanganalyze: a.alter se

2022-05-31 Database 我要分享

Deep understanding of latch: cache buffers chains

Event background: an outage occurred in a customer's database and checked the awr report of the database. It turned out that a large number of latch: cache buffers chains waiting events caused the system to consume a large amount of CPU, which eventually led to the system hang living.

2022-06-01 Database 我要分享

Which protocol in the computer network is virtual consistency?

This article will explain in detail which protocol is virtual consistency in the computer network. 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. The protocol of pseudo chain is virtual consistency, and pseudo chain is a camouflaged connection, which includes: 1.

2022-06-02 Internet Technology 我要分享

Active broadcast of the last kernel dmesg information after the system panic-an almost usable scheme

In "remotely triggering SYSRQ to get the latest dmesg information-an almost useless solution", I think remote triggering SYSRQ is of no practical use. When the system does not hang, it would be much better to use standard methods such as SSH. When the system hangs, remote triggering is in most cases.

2022-06-01 Network Security 我要分享

[Win] login-free Baidu network disk high-speed downloader ENFI downloader v1.3.1

ENFI downloader is an accelerated download software for Baidu network disk resources, the interface is simple and clear, easy to use, support all kinds of old driver resources download, download file size and traffic balance deduction is proportional to hear here is not very panic, worried that it will cost RMB to continue to use, these do not exist

2022-06-03 Internet Technology 我要分享

How to analyze the problems of oradebug diagnosis system

How to analyze the problem of oradebug diagnosis system? 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. Oracle hanganalyzehang

2022-06-01 Servers 我要分享

How to use the optional chain call operator in Vue2

This article mainly introduces the relevant knowledge of "how to use the optional chain call operator in Vue2". The editor shows you the operation process through an actual case. The operation method is simple, fast and practical. I hope this article "how to use the optional chain call operator in Vue2" can help you solve the problem.

2022-06-01 Development 我要分享

Cao Cao's trip changed: Zhou Hang stepped down as chairman, and Geely veteran Yang Jian took over.

According to the news on February 10, recently, the chairman of Hangzhou Youhang Technology Co., Ltd., the main body of Cao Cao travel, has changed from Zhou Hang to Yang Jian. Cao Cao travel official told the media, "Yang Jian as chairman of Cao Cao Travel is intended to strengthen the coordination between Cao Cao Travel and Geely Ecology, and strengthen the promotion."

2023-11-24 IT Information 我要分享

Analysis of a problem caused by RESOURCE MANAGER

1. Analyze the hanganalyze log: Chains most likely to have caused the hang: "" the final blocking source is all caused by resmgr:cpu quantum. [

2022-06-01 Database 我要分享

Analysis of the problem of Hbase regionserver hanging up one by one

Recently encountered a rather strange problem, a regionserver due to GC reasons, caused the link with zookeeper timed out, and finally was kicked out of the cluster. However, the next phenomenon is the beginning of the nightmare! 1. A regionserver due to

2022-06-03 Internet Technology 我要分享

Suspension Security DSS 2023 Digital supply chain Security Conference held successfully

Thousands of people gathered at the National Convention Center to participate in the grand DSS 2023 Digital supply chain Security Conference (DSS 2023) held at the Beijing National Convention Center on October 10, 20238. The conference was hosted by overhanging Mirror Security and the organizing committee of the ISC Internet Security Conference.

2023-11-24 IT Information 我要分享

What are the features of the PHP BnbTool package

This article introduces the relevant knowledge of "what are the features of the PHP BnbTool package". 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!

2022-06-01 Internet Technology 我要分享

When installing 11.2.0.1 on the Centos 6.3 x64 platform, Hang remained unchanged to 65%.

When installing Oracle grid with a native vmware virtual machine, the system always stops when it is installed to 65%, and then check the log and find that the log does not respond: [root@linux01 app] # tail-f / app/oraIn

2022-06-01 Database 我要分享