innodb monitor

: ... ... ------------ transactions ------------ Trx ID counter 0 117472192 Purge do for Trx ' s N History list length n T Otal number of lock structs in row lock hash table 0 LIST of transactions for each SESSION: -- -transaction 0 117472185, not started, process no 11052, OS thread ID 1158191456 MySQL thread id 200610, que Ry ID 291197 localhost root ---TRANSACTION 0 117472183, not started, process no 11052, O

InnoDB Storage engine notes,Chapter 2 Mysql architecture and storage engine 1st define a set of databases and instance databases: databases, physical operating system files, or other forms of file types. When using the NDB storage engine, database files may be stored in the memory rather than on the disk. Instance: instance. the Mysql database instance consists of a background thread and a shared memory zone. The instance is actually used to operate d

InnoDB and MyISAM are the two most common table types used by many people when using MySQL, both of which have pros and cons, depending on the application. The basic difference is that the MyISAM type does not support advanced processing such as transaction processing, and InnoDB type support. The MyISAM type of table emphasizes performance, which is performed more quickly than the

Label:MyISAM and InnoDB explanationInnoDB and MyISAM are the two most common table types used by many people when using MySQL, both of which have pros and cons, depending on the application. The basic difference is that the MyISAM type does not support advanced processing such as transaction processing, and InnoDB type support. The MyISAM type of table emphasizes performance, which is performed more quickly

.tar.gzMysql_performance_monitor_templates-0.9.1.tar.gz2.Zabbix web-side import of MPM templatesTemplates required for Zabbix Web UI Import Monitoring ("Configuration", "Templates", "Import"):The specific template file uses the following:Template_FromDual.MySQL.ndb.xml # Monitor MySQL clusterTemplate_FromDual.MySQL.security.xmlTemplate_FromDual.MySQL.innodb.xml # monitoring InnoDB storage engine state varia

has been checked.Myisamchk -- fastOnly those tables without this flag are checked. ·Myisamchk -- analyzeStores statistics for some keys and for the entire key. ·MyisampackYou can package BLOB and VARCHAR columns. MyISAM also supports the following features: · The true VARCHAR type is supported. The VARCHAR column starts with the length of the two bytes. · Tables with VARCHAR can have fixed or dynamic record lengths. · VARCHAR and CHAR columns can be up to 64 KB. · A messy computed index pair c

Tags: signal ati start dict set hand Ops Moni AIOaccording to MySQL lock monitor This article to operate. Readiness condition: More than 5.6.16 version of MySQL, login MySQL Open Set GLOBAL innodb_status_output=on; Set GLOBAL innodb_status_output_locks=on;Add and Modify tables. Mysql>Show CREATE TABLE My_test1_0\g***************************1. Row ***************************table:my_test1_0 Create table:create Table ' my_test1_0 ' (' ID 'int( One)

This article mainly introduces the differences between the storage engine myisam and innodb of Mysql. if you need it, you can refer to the simple expression below. MyISAM is a non-transactional storage engine. Innodb is a storage engine that supports transactions. The innodb engine is suitable for insert and update operations. MyISAM is suitable for application

Master Thread of InnoDB Storage engine, innodbmasterThe main work of the InnoDB Storage engine is completed in a separate background Thread Master Thread.1. Master Thread before InnoDB 1.0.x Master threads have the highest priority. It consists of multiple loops: Main loop, backgroup loop, flush loop, and suspend loop ). The Master Thread switches between the abo

MyISAM and InnoDB explanationInnoDB and MyISAM are the two most common table types used by many people when using MySQL, both of which have pros and cons, depending on the application. The basic difference is that the MyISAM type does not support advanced processing such as transaction processing, and InnoDB type support. The MyISAM type of table emphasizes performance, which is performed more quickly than

Http://www.oschina.net/question/17_4248 Considerations for MySQL storage engine InnoDB, MyISAM, and row lock2010-02-21 18:21MyISAM is the default storage engine in MySQL. Generally, not many people care about this. It is a tricky thing to decide what storage engine to use, but let's take a look at it. Here we only consider MyISAM and InnoDB, because these two are the most common.Next let's answer some quest

MyISAM: This is the default type, which is based on the traditional ISAM type, and ISAM is the abbreviation for indexed sequential access method (indexed sequential access methods), which is the standard way to store records and files. Compared with other storage engines, MyISAM has most of the tools for checking and repairing tables. MyISAM tables can be compressed, and they support full-text search. They are not transaction-safe and do not support foreign keys. If something is rolled back it w

I used it for installation. Therefore, when setting databaseusage (for example, 1), follow the official discuz suggestions, all selected are Non-TransactionalDatabaseOnly (only Non-transaction databases of MyISAM data engine are supported). InnoDB is not required for MyISAM databases, so INNODB engine is not directly loaded. It was originally used for installation. Therefore, when setting database usage (fo

Basic differences:The MyISAM type does not support advanced processing such as transaction processing, whereas the InnoDB type does. MyISAM tables emphasize performance, and the execution speed is faster than that of InnoDB, but transactions are not supported. InnoDB provides advanced database functions such as transaction support and external keys.The following

First, Xtrabackup Introduction A, Xtrabackup is what Xtrabackup is a tool for data backup of InnoDB, which supports online hot backup (without affecting data reading and writing during backup), is a good substitute for the commercial Backup tool InnoDB Hotbackup. Xtrabackup has two main tools: Xtrabackup, Innobackupex 1, Xtrabackup can only back up InnoDB and

InnoDB and MyISAM are the two most commonly used table types used by many people when using MySQL, each with its own pros and cons, depending on the specific application. Basic differences: MyISAM types do not support advanced processing, such as transaction processing, but InnoDB type support. MyISAM type tables emphasize performance, which is performed more than Inno