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[Msql] redo and undo log, msqlredoundolog InnoDB has two very important logs: undo log and redo log. The former is used to ensure the atomicity of transactions and the MVCC of InnoDB, and the latter is used to ensure transaction persistence. Like

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,

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

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.

Original address: http://www.cnblogs.com/liuhao/p/3714012.htmlWritten in front: the author level is limited, welcome to enlighten, all to the latest source code prevail.InnoDB Redo LogLet's start with what the next InnoDB redo log is, why you need

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,

Preface This is a study note.The learning material comes from a log blog post from Jay Kreps.The original text is very long, but I persisted to read, the harvest is very much, also deeply to Jay's technical ability, the architecture ability and to

ArticleDirectory 14.3 generate backup Sets 14.3 generate backup Sets Through the previous study, we have learned that the SQL Server 2005 database provides the function to restore the database status to the fault occurrence point.

Transferred from: http://blog.chinaunix.net/uid-24250828-id-3198922.html1)/var/log/secure: Record log in system to access data files;For example: POP3,SSH,TELNET,FTP, etc. will be recorded here.2)/ar/log/btmp: Record login This information record,

Preface This is a study note.The learning material comes from a log blog post from Jay Kreps.The original text is very long, but I persisted to read, the harvest is very much, also deeply to Jay's technical ability, the architecture ability and to