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MySQL5.7.11 mysqlpump 多线程逻辑备份工具

发布时间：2020-08-18 16:15:00 来源：ITPUB博客 阅读：194 作者：urgel_babay 栏目：MySQL数据库
2016.03.14
   
     为了体验5.7.11版本带来的新体验，俺也是迫不及待的想测试一下，新的特性和新功能。这几天心里一直想着的就是5.7.11 修复版的mysqlpump。在MySQL 5.7.11之前官方也明确说了mysqlpump 不支持一致性备份。
直到5.7.11中被修复了。其中最为有看点的就是：
1. 支持基于表的多线程导出功能(--default-parallelism，默认为2，--parallel-schemas，控制并行导出的库)
2. 导出的时候带有进度条（--watch-progress，默认开启）
3. 支持直接压缩导出导入（参数--compress-output，而且支持ZLIB和LZ4）

数据库：MySQL 5.7.11 
系统：CentOS6.5 x64
测试数据量：6.1G

[root@zhangMySQL5711 mysql]#mysqlpump -uroot -pzhangmysql --single-transaction -B zhangdb >pump.sql
  1. Dump progress: 0/4 tables, 250/80745 rows
  2. Dump progress: 16/165 tables, 770247/29474007 rows
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  144. Dump progress: 351/452 tables, 29910716/29526630 rows
  145. Dump completed in 187454 milliseconds
  146. [root@zhangMySQL5711 mysql]
下一篇，详细介绍mysqlpump 工具的使用。

向AI问一下细节
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