14.4.2 Change Buffer 지연 쓰기

1310 단어
14.4.2 Change Buffer

change buffer              cahce    secondary index pages

     pages   buffer pool ,buffered changes,       INSERT, UPDATE, or DELETE   (DML)

       pages      Buffer pool       

  clustered indexes,secondary indexes          ,

     secondary indexes            。

   ,         secondary index pages             。

  cached changes       ,    Page    buffer pool      ,

     I/O      secondary index pages 


    , purge            ,      slow shutdown ,


    index pages    。 purge               Index                      


Change buffer                 secondary indexes           。

     ,disk I/O     ,          slowdown       

Change buffer merging                。


Change buffer merging    Oracle          redo         

    , change buffer    InnoDB buffer pool    。    ,

change buffer           ,   index changes              



mysql> show variables like '%innodb_change_buffering%';
+-------------------------+-------+
| Variable_name           | Value |
+-------------------------+-------+
| innodb_change_buffering | all   |
+-------------------------+-------+
1 row in set (0.00 sec)

InnoDB     change buffering,            secondary indexes

  I/O         

다음으로 전송:https://www.cnblogs.com/zhaoyangjian724/p/6199096.html

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