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This article "My MySQL Learning experience (15)" will explain the MySQL logThe logs in MySQL are divided into 4 categories, and using these log files, you can see what's happening inside MySQL.respectively is1, error log: Log the MySQL service start,

Log Files in centos7 Common Linux Log Files are described as follows:1./var/log/boot. log (self-check process)2./var/log/cron (actions of the child process derived from crontab daemon crond)3./var/log/maillog (activity of emails sent to or from the

Redo logs are also called online redo logs. The purpose of introducing redo logs is data recovery. As the database runs, the data that the user changes is temporarily stored in the database's buffer zone. In order to improve the speed of writing

Oracle Online redo log files (online redo log fileAlmost all of the internal changes that occur in Oracle are recorded in the online redo log file, and Oracle uses these redo log groups to recover the database, so they are very important.The main

1. Introduction to important log files in Linux/var/log/boot. log this file records the system events during the boot process, that is, the information displayed during the Linux system boot self-check process, as shown in 1:/var/log/boot. log

Apche Log Series (1): Access log Want to know when and what people are browsing the content of the site. See Apache's access log to know. The access log is the standard log for Apache, which explains in detail the contents of the Access log and the

1. Define the log formatA long time ago, there was only one log file format, which was a "public format" and many people were used to this format. The custom log format appeared later, and it seems that the custom log format is more popular, even

UNIX network administrators primarily rely on system logs to obtain traces of intrusions. Of course, there are also traces of third-party tools recording intrusions into the system. UNIX systems store LOG files in the following common locations:/Usr/

The most important purpose of redo log files is to restore data (you can also use logminer). It records the database buffer cache (high-speed cache area) in the system global area (sga) all change information is recorded in the log buffer. However,

Error log:By default, the error log probably records the following areas of information:1. Information during server startup and shutdown (not necessarily error messages, for example, how MySQL launches InnoDB tablespace files, how to initialize its