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Innodb_adaptive_flushing= {ON | OFF}Set whether to allow the MySQL server to dynamically adjust the dirty pages in the InnoDB buffer pool based on the workload. The purpose of dynamically adjusting the write speed is to avoid IO activity spikes. The

Add by Zhj: In the MySQL5.6 of some parameters have been increased, see http://dev.mysql.com/doc/refman/5.6/en/server-system-variables.htmlOriginal: http://mageedu.blog.51cto.com/4265610/1062628Marco Education Linux operation and maintenance

Now, the market exists a large number of true and false Web application firewall products, the user's understanding of it is not clear enough, coupled with the industry's lack of Web application firewall measurement standards, Web application

In the database optimization, we see some of the tables are designed to use text or BLOB fields, if the single table storage space reached nearly hundred g or dozens of G, this situation again to change and optimization is very difficultFirst,

1. Logic meaning of varchar (N)From MySQL4.1, N in varchar (N) indicates the maximum number of characters (characters) that can be stored in this field, not the number of bytes.Whether it is a Chinese character or a number, or a Chinese character,

Test conclusionMysql 5.1Table type: innodb, row_format = compact (this is the default row format)Insert more than 10 blobs. The blob data volume is small (Insert more than 10 blobs, The blob data volume is large (> 768 bytes), insertion failed: Got

Test conclusionMysql 5.1Table type: innodb, row_format = compact (this is the default row format)Insert more than 10 blobs. The blob data volume is small (Insert more than 10 blobs, The blob data volume is large (> 768 bytes), insertion failed: Got

[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

1, the logical meaning of varchar (N)Starting with MySQL4.1, n in varchar (n) refers to the maximum number of characters (characters) that can be stored in the field, not the number of bytes. Whether it's a Chinese-English character or a number, or

I. SeagateSeagate Technology Corporation (Seagate Technology) is a veteran brand in the hard disk world, and the vast majority of users are already familiar with it. As the world's largest disk drive, disk and read-write head manufacturer, the