{"id":1012,"date":"2022-03-26T14:50:55","date_gmt":"2022-03-26T06:50:55","guid":{"rendered":"https:\/\/www.buyao007.icu\/?p=1012"},"modified":"2022-03-26T14:50:56","modified_gmt":"2022-03-26T06:50:56","slug":"9-mysql%e5%ad%98%e5%82%a8%e5%bc%95%e6%93%8e","status":"publish","type":"post","link":"https:\/\/www.buyao007.icu\/?p=1012","title":{"rendered":"9.MySQL\u5b58\u50a8\u5f15\u64ce"},"content":{"rendered":"\n

\u5b59\u5bcc\u9633\uff0c \u6c5f\u6e56\u4eba\u79f0\u6ca1\u4eba\u79f0\u3002\u591a\u5e74\u4e92\u8054\u7f51\u8fd0\u7ef4\u5de5\u4f5c\u7ecf\u9a8c\uff0c\u66fe\u8d1f\u8d23\u8fc7\u5b59\u5e03\u65af\u5927\u89c4\u6a21\u96c6\u7fa4\u67b6\u6784\u81ea\u52a8\u5316\u8fd0\u7ef4\u7ba1\u7406\u5de5\u4f5c\u3002\u64c5\u957fWeb\u96c6\u7fa4\u67b6\u6784\u4e0e\u81ea\u52a8\u5316\u8fd0\u7ef4\uff0c\u66fe\u8d1f\u8d23\u56fd\u5185\u67d0\u5927\u578b\u535a\u5ba2\u7f51\u7ad9\u8fd0\u7ef4\u5de5\u4f5c\u3002<\/p>\n\n\n\n

1.\u4ec0\u4e48\u662f\u5b58\u50a8\u5f15\u64ce<\/h2>\n\n\n\n

\u5b58\u50a8\u5f15\u64ce\u662fMySQL\u4e2d\u7684\u201c\u6587\u4ef6\u7cfb\u7edf\u201d<\/p>\n\n\n\n

2.\u5b58\u50a8\u5f15\u64ce\u7684\u79cd\u7c7b<\/h2>\n\n\n\n

1.Oracle MySQL\u81ea\u5e26\u7684\u5b58\u50a8\u5f15\u64ce\u79cd\u7c7b<\/em><\/strong><\/p>\n\n\n\n

mysql> show engines;
FEDERATED
MEMORY
InnoDB
PERFORMANCE_SCHEMA
MyISAM
MRG_MYISAM
BLACKHOLE
CSV
ARCHIVE<\/p>\n\n\n\n

2.\u5206\u652f\u4ea7\u54c1\u7684\u5b58\u50a8\u5f15\u64ce\u79cd\u7c7b\u4ecb\u7ecd<\/em><\/strong><\/p>\n\n\n\n

Pwecona\u3001Mariadb
TokuDB\u3001MyRocks\u3001Rocksdb
\u7279\u70b9\uff1a
1.\u538b\u7f29\u6bd4\u4f8b15\u500d\u4ee5\u4e0a
2.\u63d2\u5165\u6570\u636e\u6027\u80fd\u9ad8
\u9002\u5e94\u573a\u666f\uff1a
\u4f8b\u5982Zabbix\u76d1\u63a7\u7c7b\u7684\u5e73\u53f0\u3001\u5f52\u6863\u5e93\u3001\u5386\u53f2\u6570\u636e\u5b58\u50a8\u4e1a\u52a1<\/p>\n\n\n\n

3.InnoDB\u5b58\u50a8\u5f15\u64ce\u7279\u6027<\/h2>\n\n\n\n

MVCC\uff1a\u591a\u7248\u672c\u5e76\u53d1\u63a7\u5236
\u805a\u7c07\u7d22\u5f15\uff1a\u7528\u6765\u7ec4\u7ec7\u5b58\u50a8\u6570\u636e\u548c\u4f18\u5316\u67e5\u8be2\uff0cIOT
\u652f\u6301\u4e8b\u52a1\uff1a\u6570\u636e\u5b89\u5168\u4fdd\u8bc1
\u652f\u6301\u884c\u7ea7\u9501\uff1a\u63a7\u5236\u5e76\u53d1
\u5916\u952e
\u591a\u7f13\u51b2\u533a\u652f\u6301
\u81ea\u9002\u5e94Hash\u7d22\u5f15\uff1aAHI
\u590d\u5236\u4e2d\u652f\u6301\u9ad8\u7ea7\u7279\u6027
\u5907\u4efd\u6062\u590d\uff1a\u652f\u6301\u70ed\u5907
\u81ea\u52a8\u6545\u969c\u6062\u590d\uff1aCR Crash Recovery
\u53cc\u5199\u673a\u5236\uff1aDWB Double Write Buffer<\/p>\n\n\n\n

PS:InnoDB\u6838\u5fc3\u7279\u6027\u6709\u90a3\u4e9b\uff1f\u4e0eM\u6709ISAM\u533a\u522b\u6709\u90a3\u4e9b\uff1f<\/em><\/strong><\/p>\n\n\n\n

InnoDB\u652f\u6301\u4e8b\u52a1\u3001MVCC\u3001\u805a\u7c07\u7d22\u5f15\u3001\u5916\u952e\u3001\u7f13\u51b2\u533a\u3001AHI\u3001CR\u3001DW\uff0cMyISAM\u4e0d\u652f\u6301
InnoDB\u652f\u6301\u884c\u7ea7\u9501\uff0cM\u6709ISAM\u652f\u6301\u8868\u7ea7\u9501
InnoDB\u652f\u6301\u70ed\u5907\uff08\u4e1a\u52a1\u6b63\u5e38\u8fd0\u884c\uff0c\u5f71\u54cd\u4f4e\uff09\uff0cMyISAM\u652f\u6301\u6e29\u5907\u4efd\uff08\u9501\u8868\u5907\u4efd\uff09\u3002
InnoDB\u652f\u6301CR\uff08\u81ea\u52a8\u6545\u969c\u6062\u590d\uff09\uff0c\u5b95\u673a\u81ea\u52a8\u6545\u969c\u6062\u590d\uff0c\u6570\u636e\u5b89\u5168\u548c\u4e00\u81f4\u6027\u53ef\u4ee5\u5f97\u5230\u4fdd\u8bc1\u3002MyISAM\u4e0d\u652f\u6301\uff0c\u5b95\u673a\u53ef\u80fd\u4e22\u5931\u5f53\u524d\u4fee\u6539\u3002<\/p>\n\n\n\n

4.\u5b58\u50a8\u5f15\u64ce\u7684\u57fa\u672c\u64cd\u4f5c<\/h2>\n\n\n\n

1.\u67e5\u8be2\u652f\u6301\u7684\u5b58\u50a8\u5f15\u64ce<\/em><\/strong><\/p>\n\n\n\n

mysql> show engines;<\/code><\/pre>\n\n\n\n
2.\u67e5\u8be2\u3001\u8bbe\u7f6e\u9ed8\u8ba4\u7684\u5b58\u50a8\u5f15\u64ce<\/em><\/strong><\/p>\n\n\n\n
mysql> select @@default_storage_engine;\r\n\r\nvim \/etc\/my.cnf\r\ndefault_storage_engine=InnoDB\r\n\u91cd\u542f\u751f\u6548\r<\/code><\/pre>\n\n\n\n
3.\u67e5\u770b\u3001\u8bbe\u5b9a\u8868\u7684\u5b58\u50a8\u5f15\u64ce<\/em><\/strong><\/p>\n\n\n\n
\u67e5\u770b\u67d0\u5f20\u8868\u7684\u5b58\u50a8\u5f15\u64ce\r\nshow create table xta\uff1b\r\n\u67e5\u8be2\u7cfb\u7edf\u4e2d\u6240\u6709\u4e1a\u52a1\u8868\u7684\u5b58\u50a8\u5f15\u64ce\u4fe1\u606f\r\nmysql> select TABLE_SCHEMA,TABLE_NAME,ENGINE from information_schema.tables where TABLE_SCHEMA not in ('information_schema','performance_schema','sys','mysql');\r\n\u521b\u5efa\u8868\u8bbe\u5b9a\u5b58\u50a8\u5f15\u64ce\r\ncreate table xxx (id int) engine=innodb charset=utf8mb4;\r\n\u4fee\u6539\u5df2\u6709\u8868\u7684\u5b58\u50a8\u5f15\u64ce\r\nalter table xxx engine=innodb charset=utf8mb4;\r<\/code><\/pre>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5b59\u5bcc\u9633\uff0c \u6c5f\u6e56\u4eba\u79f0\u6ca1\u4eba\u79f0\u3002\u591a\u5e74\u4e92\u8054\u7f51\u8fd0\u7ef4\u5de5\u4f5c\u7ecf\u9a8c\uff0c\u66fe\u8d1f\u8d23\u8fc7\u5b59\u5e03\u65af\u5927\u89c4\u6a21\u96c6\u7fa4\u67b6\u6784\u81ea\u52a8\u5316\u8fd0\u7ef4\u7ba1\u7406\u5de5\u4f5c\u3002\u64c5\u957fWeb\u96c6 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29],"tags":[],"_links":{"self":[{"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=\/wp\/v2\/posts\/1012"}],"collection":[{"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1012"}],"version-history":[{"count":1,"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=\/wp\/v2\/posts\/1012\/revisions"}],"predecessor-version":[{"id":1013,"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=\/wp\/v2\/posts\/1012\/revisions\/1013"}],"wp:attachment":[{"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1012"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1012"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1012"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}