innodb monitor

The following articles mainly describe the MySQL table types, that is, detailed parsing of MyISAM and innodb. If you are interested in the MySQL table types, that is, the actual operations related to detailed parsing of MyISAM and innodb, you can click to view the following articles. MySQL table types: MYISAM and innodb 1. If your data executes a large number o

Three major MySQL engines: InnoDB, MyISAM, and Memory InnoDB and MyISAM are the two most commonly used table types in MySQL, each with its own advantages and disadvantages, depending on the specific application. The basic difference is that the MyISAM type does not support advanced processing such as transaction processing, while the InnoDB type does. My

MyISAM 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 questions:◆ Does your database have a foreign key?◆ Do you need transaction support?◆ Do you need full-text indexing?◆ What query mode do you often use?◆ How big is your dat

How to disable the InnoDB engine in MySQL I. determine the version View MySQL versionMysql-VYou can also log on to MySQL using the select version (); or status; command to view II. start work Disable MySQLService mysql stopIf the preceding command cannot close MySQL, use the kill-9 command to forcibly kill the process; Modify the MySQL configuration file my. cnf (usually located in/etc/mysql/my. cnf) and add the following fields For MySQL 5.5: Defaul

sufficient Innodb_log_files_in_group = 2 #启用InnoDB的独立表空间模式, easy to manage innodb_file_per_table = 1 #启用InnoDB的status file for administrators to view and monitor Innodb_status_file = 1 #设置事务隔离级别为 read-commited, improve transaction efficiency, usually meet transaction consistency requirements Transaction_isolation = read-committed [Mysqld] #禁止开启自动事务 init_con

MyISAM 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 questions: ◆ your data MyISAM 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,

[Mysql] storage and optimization of text blob large fields in InnoDB Storage engine, innodbblob Recently, during database optimization, we can see that some tables use text or blob fields in design, and the storage space of a single table has reached nearly 100 GB, it is very difficult to change and optimize this situation.I. Introduction To understand the impact of large fields on performance, we must know the processing method of the

The environment is CentOS, 1 GB memory, and Mysql5.5.30.Add the following in/etc/my. cnf:Copy codeThe Code is as follows:Skip-external-lockingSkip-name-resolveMax_connections = 1024Query_cache_size = 16 MSort_buffer_size = 1 MTable_cache = 256Innodb_buffer_pool_size = 128 MInnodb_additional_mem_pool_size = 4 MInnodb_log_file_size = 128 MInnodb_log_files_in_group = 2Innodb_log_buffer_size = 2 MInnodb_flush_log_at_trx_commit = 1Stop the mysql service before modification:Service mysqld restartAn er

1. innodb supports transaction processing, not myisam. Myisam is faster and has better performance. 2. select, update, insert, and delete operations: If you execute a large number of SELECT operations, MyISAM is a better choice for InnoDB: for example, 1. transaction processing innodb supports the transaction function, but MyISAM does not. Myisam is faster and ha

MySQL Engine Features-InnoDB redo log roamingPreface 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 most relational databases, InnoDB records physical changes to

| Innodb_adaptive_hash_index | on | whether to enable adaptive hash Indexes| Innodb_additional_mem_pool_size | 1048576 | size of the memory pool in which InnoDB stores data directory information and other internal data structures| Innodb_autoextend_increment | 8 | size (MB) added for expansion when the auto-extended tablespace is filled)| Innodb_autoinc_lock_mode | 1 | the locking mode to use for generating auto-increment values, the allowable values

A simple expression.MyISAM is a non transactional storage engine.InnoDB is a storage engine that supports transactions.InnoDB engines are more suitable for inserting and updating operations than more applicationsand MyISAM is suitable for frequent query application.MyISAM--table lock. innodb--design Reasonable words are row lock.MyISAM does not appear to be deadlocked.The biggest difference is that MyISAM is suitable for small data, small concurrency

MyISAM: This is the default type, which is based on the traditional ISAM type, ISAM is an abbreviation for indexed sequential access method (indexed sequential access methods), which is the standard way to store records and files. Compared to 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 the rollback of a thing causes incom

Tags: SQL hit save buffer pool instance project performance application fitThe MyISAM of MySQL database differs from the InnoDB in the following ways:1. Storage structureEach myisam is stored as three files on disk. The first file name begins with the name of the table, and the extension indicates the file type.The. frm file stores the table definition.The data file has an extension of. MYD (MYData).The extension of the index file is. MYI (Myindex). 2

Written in front This blog to undertake the last MySQL default engine InnoDB (a) to explore the MySQL database InnoDB storage engine MySQL default storage engine InnoDB Introduction InnoDB is the first MySQL storage engine to fully support the ACID transaction (BDB is the first MySQL storage engi

14.1.1. Innodb-mysql Default Storage Engine 14.1.2. Detecting the availability of InnoDB 14.1.3. Close InnoDB The InnoDB is a universal storage engine that combines high reliability and high performance. InnoDB is the default storage engine in MySQL5.5. In the MySQL5.7 When

I suddenly received an alarm from MySQL. I crashed from the database and restarted continuously. I opened the error log and found that a table was broken. If the innodb table is damaged, you cannot use repair table or other commands to repair myisam. Now, record the solution process and we will not be so confused next time. Processing Process:When an alert is triggered, open the error log with the following information: