log data definition

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

MySQL series: innodb source code analysis-redo log structure, mysqlinnodb In innodb Engine implementation, a redo log system is built to ensure transaction persistence. Redo log is composed of two parts: the memory log buffer and the redo log file.

ObjectiveThe log of the database is a strong basis for helping the database administrator to track the various events that have occurred in the database before. MySQL provides error log, Binlog log (binary log), investigate log, slow query log. Here,

MySQL series: innodb source code analysis-redo log structure  1. In the innodb redo log system, the LSN defines an LSN number, which indicates the log Sn. The LSN defines a dulint_t type value in the engine, which is equivalent to uint64_t. The

In the implementation of InnoDB engine, the redo log system is built in order to realize the persistence of the transaction. The redo log consists of two parts: the Memory log buffer (redo log buffers) and the redo log file. The purpose of this

00–undo LogUndo log is for the atomicity of transactions, in the MySQL database InnoDB storage engine, also with the undo log to achieve multi-version concurrency control (abbreviation: MVCC).-Atomicity of the transaction (atomicity)All operations

This article describes MySQL log management in detail. This article describes log types, log functions, and common server variables related to MySQL logs, if you need it, you can refer to the log file. it is very important for a server. it records

Httpd log and log rotation tool, httpd log Rotation Directory:1.1 Error Log ErrorLog1.2 access log CustomLog1.3 log rotation: rotatelogs Tool1.4 log rotation: cronolog Tool1.5 comparison between rotatelogs and cronolog The types of logs to be

Comprehensive interpretation of the log function in the YII framework of PHP and a comprehensive interpretation of yii Yii page-level log OpenIn main.php, the log segment is added,The following shows the page log array (' class ' = ' Cweblogroute '

OverviewLog technology provides an important support for the quality and service of the product. The JDK has been added to the logging mechanism since version 1.4, which facilitates Java developers. However, this logging mechanism is based on the