Development oriented memory debugging artifact, how to use ASAN to detect memory leakage, stack overflow and other problems

The original content of GreatSQL community cannot be used without authorization. Please contact Xiaobian and indicate the source for reprint.[toc]introduceFirst of all, let's introduce it Sanitizer The project is an open source project produced by Google. The project includes memory and thread error detection tools such as ASAN, LSAN, MSAN and ...

Posted by realnsleo on Wed, 11 May 2022 07:47:07 +0300

The characteristics of zookeeper and the use of common commands

The characteristics of zookeeper and the use of common commands zookeeper is a distributed, open source distributed application coordination service. It is a software that provides consistency services for distributed applications. The application scenarios of zookeeper are as follows: Data publishing subscription load balancing Naming ser ...

Posted by neoboffins on Wed, 11 May 2022 07:06:37 +0300

Installation of Oracle Database 11g Enterprise on CentOS (the most detailed and simple tutorial in the whole network)

Installation of Oracle Database 11g Enterprise on CentOS environment VMware Workstation 15 Pro CentOS 7 64 bit (CentOS-7-x86_64-DVD-1810.iso) If the environment is not ready, you can refer to: Installing CentOS for VMware virtual machines tool SecureCRT 8.7 SecureFX 8.7 Navicat Premium 12 PL/SQL Installation package Oracle Databa ...

Posted by sy-co on Tue, 10 May 2022 21:06:46 +0300

MyBatis learning notes (including SSM integration and reverse engineering)

1. Introduction to mybatis 1.1 what is MyBatis? MyBatis official website MyBatis is an excellent persistence layer framework that supports common SQL queries, stored procedures and advanced mapping. MyBatis eliminates almost all the manual setting of JDBC code and parameters and the retrieval of result sets. MyBatis uses simple XML or ann ...

Posted by kyme on Tue, 10 May 2022 16:23:56 +0300

SQL optimization case: implicit conversion

MySQL is one of the most popular relational databases at present. With the rapid development of the Internet, MySQL database is widely used in the production systems of e-commerce, finance and many other industries. In the actual development, operation and maintenance process, we must often encounter the problem of slow SQL. A SQL with poor per ...

Posted by volant on Tue, 10 May 2022 09:16:01 +0300

Hyperledger Fabric chain code development practice log

1. Overview of chain code structure Here, the development of chain code uses Go language. Therefore, we need to simply learn Go language first. It is a lightweight language. Interestingly, it has its own channel and can be concurrent, which is very suitable for the development of large-scale distributed systems. To Start the chain code, you mu ...

Posted by pmcconaghy on Mon, 09 May 2022 12:16:02 +0300

Troubleshoot high CPU usage in MongoDB

Analyze the requests being executed by the MongoDB database 1. Connect to the instance through Mongo Shell. For details, see Mongo Shell connecting to a single node instance, Mongo Shell connecting to a replica set instance, and Mongo Shell connecting to a sharded cluster instance. 2. Execute the db.currentOp() command to view the operations cu ...

Posted by scarhand on Mon, 09 May 2022 07:46:34 +0300

Method of Sql Server Deadlock analysis

environment The Sql Server database is deadlocked. (non emergency or emergency) method 1. RML Utilities tool+Trace File capture deadlock 2. DBCC Capture deadlock 3. Profiler Capture deadlock 4. Trace File capture deadlock(It's time-consuming to execute offline) 5. Automatic deployment Profiler Capture deadlock 6. Service Broker Event n ...

Posted by ClevaTreva on Mon, 09 May 2022 07:07:31 +0300

My JDBC learning path

JDBC What is JDBC JDBC (Java database connectivity) is a Java API used to execute SQL statements. It provides unified access to a variety of relational databases. It is composed of a group of classes and interfaces written in Java language Connect database Connect before mysql8 Database driver name: com mysql. jdbc. Driver url connection: ...

Posted by mrhinman on Mon, 09 May 2022 06:28:50 +0300

MySQL index as I understand it

Hello, nice to meet you. Starting from September, I decided to launch the goal of "weekly blog": publish at least one blog every week, which can be a variety of source code analysis and study, or a problem encountered in recording work. After a period of aimless study, I found that it didn't seem to be very useful. I forgot what I had ...

Posted by kid_drew on Mon, 09 May 2022 00:21:49 +0300