{"id":229419,"date":"2020-12-12T02:56:18","date_gmt":"2020-12-11T18:56:18","guid":{"rendered":"http:\/\/4563.org\/?p=229419"},"modified":"2020-12-12T02:56:18","modified_gmt":"2020-12-11T18:56:18","slug":"mysql-%e6%95%b0%e6%8d%ae%e5%ba%93%e7%a3%81%e7%9b%98%e5%b7%a8%e9%87%8f%e5%8d%a0%e7%94%a8%e6%83%8a%e9%ad%82","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=229419","title":{"rendered":"mysql \u6570\u636e\u5e93\u78c1\u76d8\u5de8\u91cf\u5360\u7528\u60ca\u9b42"},"content":{"rendered":"
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mysql \u6570\u636e\u5e93\u78c1\u76d8\u5de8\u91cf\u5360\u7528\u60ca\u9b42 <\/h1>\n

<\/p>\n

\n
\u8cc7\u6df1\u5927\u4f6c : kaka6 <\/span> <\/i> 9<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n

\u4e00\u3001\u4e8b\u7531\uff1a\u4e3b\u529b Mysql \u6570\u636e\u7a81\u7136\u5de8\u91cf\u5360\u6ee1\u7a7a\u95f4\u800c\u505c\u6446<\/h4>\n
\n

\u7a7a\u95f4\u5360\u6ee1 100G \u540e\uff0c\u518d\u5ea6\u5360\u6ee1 170G\uff0c\u5192\u4e86\u4e00\u9635\u51b7\u6c57\uff0c\u4ee5\u4e3a\u53d7\u653b\u51fb\uff0c\u5982\u4e0b\u56fe<\/p>\n<\/blockquote>\n

\"mysql<\/p>\n

\u4e8c\u3001\u65f6\u95f4\u70b9\u56de\u987e<\/h4>\n
    \n
  1. 15 \u70b9\uff0c\u53d1\u73b0\u6570\u636e\u5e93\u5360\u6ee1 100G \u7a7a\u95f4\uff0c\u67e5\u4e86\u5b9e\u9645\u6570\u636e\u5e93\u6587\u4ef6\u5927\u5c0f\u624d 11G<\/li>\n
  2. \u867d\u89c9\u610f\u5916\uff0c\u4e3a\u6062\u590d\u6b63\u5e38\uff0c\u8fd8\u662f\u5148\u52a0\u7a7a\u95f4\uff08\u8fd8\u597d\u662f RDS \u4e91\u6570\u636e\u5e93\uff0c\u786c\u76d8\u6269\u5c55\u65b9\u4fbf\uff09<\/li>\n
  3. \u7a7a\u95f4\u52a0\u5230 170G\uff0c\u6570\u636e\u5e93\u6062\u590d\u6b63\u5e38\uff0c\u7136\u540e\u5c31\u627e\u65e5\u5fd7\u8868\u6765\u6e05\uff0c\u60f3\u7f29\u51cf\u4e0b\u7a7a\u95f4\u5360\u7528<\/li>\n
  4. \u5220\u9664\u4e86\u4e0d\u5c11\u65e5\u5fd7\u8868(\u4f7f\u7528 truncate \u6e05\u8868)\uff0c\u4e5f\u770b\u5230\u7a7a\u95f4\u5360\u7528\u5fae\u5fae\u5728\u4e0b\u964d<\/li>\n
  5. \u8fd8\u6709\u4e00\u5f20\u5343\u6210\u7ea7\u7684\u65e5\u5fd7\u8868\uff0c\u51c6\u5907\u8981\u6e05\u6389\uff0c\u7ed3\u679c\u5f00\u53d1\u8bf4\uff0c\u8981\u7559\u4e0b\u672c\u6708\u7684\u6570\u636e\uff0c\u4e8e\u662f\u5c31\u7528 delete+optimize \u65b9\u5f0f : delete from ###_logs where id < ####, \u7ed3\u679c\u5341\u51e0\u5206\u949f\u6ca1\u6709\u7ed3\u679c\u8fd4\u56de<\/li>\n
  6. \u6700\u540e\u8ddf\u5f00\u53d1\u534f\u8c03\uff0c\u8fd8\u662f\u628a\u8fd9\u5f20\u8868\u5168\u6e05\u4e86\uff0c\u8fd8\u662f\u7528 truncate \u6e05\u8868\uff0c\u77ac\u95f4\u6e05\u6389\u4e86<\/li>\n
  7. \u67e5\u770b\u6570\u636e\u5e93\u7684\u7a7a\u95f4\u5360\u7528\uff0c\u597d\u50cf\u6ca1\u964d\u591a\u5c11\u7a7a\u95f4<\/li>\n
  8. \u5927\u6982\u8fc7\u4e86\u5341\u51e0\u5206\u949f\uff0c\u8fdb\u5165\u6570\u636e\u5e93\u9762\u677f\uff0c\u53d1\u73b0\u7a7a\u95f4\u518d\u5ea6\u88ab\u5360\u6ee1\uff0c\u6709\u70b9\u6025\u4e86\uff0c\u7b2c\u4e00\u53cd\u5e94\u662f\u4e0d\u662f\u88ab\u653b\u51fb\u4e86<\/li>\n
  9. \u67e5\u6570\u636e\u5e93\u6587\u4ef6\uff0c\u8fd8\u662f 11G\uff0c\u90a3\u4e3a\u4ec0\u4e48\u4f1a\u5360\u6ee1 170G<\/li>\n
  10. \u4e8e\u662f\u53c8\u518d\u6b21\u589e\u52a0\u7a7a\u95f4\uff0c\u5e76\u5173\u6389\u8fdc\u7a0b\u8fde\u63a5\uff0c\u628a\u7591\u4f3c\u95ee\u9898\u8d26\u53f7\u5173\u4e86<\/li>\n
  11. \u91cd\u542f\u6570\u636e\u5e93<\/li>\n
  12. \u7ed3\u679c\u6570\u636e\u5e93\u7a7a\u95f4\u5360\u7528\u56de\u5230 20G\uff0c \u4e00\u5207\u53c8\u6b63\u5e38\u4e86<\/li>\n<\/ol>\n

    \u4e09\u3001\u4e8b\u6545\u6392\u67e5<\/h4>\n
      \n
    1. \u662f\u5426\u53d7\u653b\u51fb\uff1a\u4ed4\u7ec6\u770b\u4e86\u7f51\u7edc\u8fde\u63a5\u60c5\u51b5\uff0c\u6b63\u5e38\uff0c\u6392\u9664\u4e86\u653b\u51fb<\/li>\n
    2. \u6162\u67e5\u8be2\u76d1\u63a7\uff1a\u8fd1\u671f\u6709\u4e0d\u5c11\u6162\u67e5\u8be2\u8bb0\u5f55\uff0c\u4f30\u8ba1\u6162\u67e5\u8be2\u4f1a\u4ea7\u751f temp \u4e34\u65f6\u6587\u4ef6<\/li>\n
    3. \u6570\u636e\u5e93\u5b9e\u4f8b\u4e24\u5e74\u591a\u6ca1\u6709\u91cd\u542f\u8fc7\uff0c\u7f51\u4e0a\u8bf4 mysql5.7 \u9ed8\u8ba4\u60c5\u51b5\uff0c\u4e0d\u91cd\u542f\u7684\u8bdd\uff0c\u4e34\u65f6\u6587\u4ef6\u4f1a\u4e00\u76f4\u7d2f\u79ef<\/li>\n
    4. \u5343\u4e07\u7ea7\u8868 delete \u4ea7\u751f\u5927\u91cf\u4e34\u65f6\u6587\u4ef6<\/li>\n
    5. \u91cd\u542f mysql \u5b9e\u4f8b\u662f\u6700\u6709\u6548\u7684\u6e05\u4e34\u65f6\u6587\u4ef6\u65b9\u5f0f<\/strong><\/li>\n<\/ol><\/div>\n
      \u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (14<\/span>) <\/div>\n
      <\/div>\n<\/p><\/div>\n<\/p><\/div>\n
        \n
      • \n
        \n
        \n
        \u8cc7\u6df1\u5927\u4f6c : hbolive <\/span> <\/div>\n
        <\/i> <\/span> <\/div>\n<\/p><\/div>\n
        \u5982\u679c\u662f\u5076\u5c14\u7684\uff0c\u4f30\u8ba1\u662f\u67d0\u4e2a\u64cd\u4f5c\u5bfc\u81f4\u6162\u67e5\u8be2\u4ea7\u751f\u5de8\u91cf\u4e34\u65f6\u6587\u4ef6\u3002\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
      • \n
        \n
        \n
        \u8cc7\u6df1\u5927\u4f6c : angeltop <\/span> <\/div>\n
        <\/i> <\/span> <\/div>\n<\/p><\/div>\n
        \u68c0\u67e5\u68c0\u67e5\u4e34\u65f6\u8868\u5927\u5c0f <\/div>\n<\/p><\/div>\n<\/li>\n
      • \n
        \n
        \n
        \u8cc7\u6df1\u5927\u4f6c : neocanable <\/span> <\/div>\n
        <\/i> <\/span> <\/div>\n<\/p><\/div>\n
        innodb \u7684\u8bdd\uff0c\u628a innodb_file_per_table \u6253\u5f00\u4e86\u5427\uff0c\u8fd9\u6837\u7684\u8bdd truncate \u624d\u4f1a\u8d77\u4f5c\u7528 <\/div>\n<\/p><\/div>\n<\/li>\n
      • \n
        \n
        \n
        \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : kaka6 <\/span> <\/div>\n
        <\/i> <\/span> <\/div>\n<\/p><\/div>\n
        \u6309\u76ee\u524d\u6765\u8bf4\uff0c\u6700\u6709\u6548\u7684\u5c31\u662f\u91cd\u542f
        \u56e0\u4e3a\u5e73\u5e38 left join , group by \u6216\u8005 where \u67e5\u8be2\u7b49\uff0c\u53ea\u8981\u6ca1\u6709\u5efa\u7d22\u5f15(\u7269\u7406\u6587\u4ef6)\uff0c\u90fd\u4f1a\u751f\u6210\u4e34\u65f6\u6587\u4ef6\u6216\u4e34\u65f6\u7a7a\u95f4
        \u800c\u8fd9\u4e2a\u4e34\u65f6\u6587\u4ef6\u4e0d\u4f1a\u81ea\u52a8\u91ca\u653e(\u6211\u4ee5\u524d\u4e00\u76f4\u89c9\u5f97\u4f1a\u91ca\u653e)
        \u8fd0\u884c\u4e45\u4e86\uff0c\u7d2f\u79ef\u7684\u4e34\u65f6\u6587\u4ef6\u5c31\u4f1a\u5360\u6ee1\u7a7a\u95f4
        \u6240\u4ee5\u76ee\u524d\u89c9\u5f97\u6700\u6709\u6548\u7684\u5c31\u662f\u5b9a\u671f\u91cd\u542f mysql \u5b9e\u4f8b
        \u5f53\u7136\u4ee3\u7801\u3001\u6570\u636e\u7ed3\u6784\u4e5f\u5f97\u4f18\u5316\uff0c\u8be5\u5efa\u7d22\u5f15\u5efa\u7d22\u5f15
        \u6b22\u8fce\u5404\u4f4d\u6c9f\u901a\u5173\u4e8e mysql \u7684\u5176\u5b83\u8fd0\u7ef4\u6280\u5de7 <\/div>\n<\/p><\/div>\n<\/li>\n
      • \n
        \n
        \n
        \u8cc7\u6df1\u5927\u4f6c : opengps <\/span> <\/div>\n
        <\/i> <\/span> <\/div>\n<\/p><\/div>\n
        \u6240\u6709\u7684\u8868\u6570\u636e\u5927\u5c0f\u7edf\u8ba1\u4e00\u4e0b\uff0c\u770b\u770b\u5b9e\u9645\u6570\u636e\u5360\u7528\u5927\u5c0f
        \u5982\u679c\u6570\u636e\u5927\u5c0f\u5360\u6bd4\u5f88\u5c0f\uff0c\u90a3\u53ef\u80fd\u771f\u7684\u662f mysql \u65e5\u5fd7\u6216\u8005\u7d22\u5f15\u7b49\u7528\u9014\u5360\u7528\u4e86\uff0c\u5f97\u67e5\u67e5\u7d22\u5f15\u4e4b\u7c7b\u7684\u4f7f\u7528\u95ee\u9898\u4e86 <\/div>\n<\/p><\/div>\n<\/li>\n
      • \n
        \n
        \n
        \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : kaka6 <\/span> <\/div>\n
        <\/i> <\/span> <\/div>\n<\/p><\/div>\n
        @opengps \u6240\u6709\u8868\u6570\u636e\u53ea\u5360 11G, \u7ed3\u679c\u56e0\u4e3a\u5176\u5b83\u7a7a\u95f4\uff0c\u5c45\u7136\u5360\u6ee1\u4e86 170G\uff0c \u4e0d\u53ef\u601d\u4e49
        \u4ece\u6628\u5929\u91cd\u542f\u5b8c\u5230\u73b0\u5728\uff0c\u603b\u7a7a\u95f4\u53ea\u6709 20G\uff0c\u7a33\u5b9a\u4e0d\u53d8\u4e86\uff0c\u63a5\u4e0b\u6765\u8fd8\u662f\u5f97\u597d\u597d\u591a\u89c2\u5bdf <\/div>\n<\/p><\/div>\n<\/li>\n
      • \n
        \n
        \n
        \u8cc7\u6df1\u5927\u4f6c : han3sui <\/span> <\/div>\n
        <\/i> <\/span> <\/div>\n<\/p><\/div>\n
        \u770b\u5b8c\u611f\u89c9\u4e91\u6570\u636e\u5e93\u597d\u65b9\u4fbf <\/div>\n<\/p><\/div>\n<\/li>\n
      • \n
        \n
        \n
        \u8cc7\u6df1\u5927\u4f6c : daytonight <\/span> <\/div>\n
        <\/i> <\/span> <\/div>\n<\/p><\/div>\n
        \u7528 alter table t engine = innodb;\u91cd\u5efa\u4e0b\u8868\u8bd5\u8bd5\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
      • \n
        \n
        \n
        \u8cc7\u6df1\u5927\u4f6c : weifan <\/span> <\/div>\n
        <\/i> <\/span> <\/div>\n<\/p><\/div>\n
        \u4e3a\u4ec0\u4e48\u4f60\u80fd\u53d1\u56fe\u7247 <\/div>\n<\/p><\/div>\n<\/li>\n
      • \n
        \n
        \n
        \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : kaka6 <\/span> <\/div>\n
        <\/i> <\/span> <\/div>\n<\/p><\/div>\n
        @daytonight \u5168\u90e8\u8868\u5df2\u7ecf\u90fd\u662f innodb <\/div>\n<\/p><\/div>\n<\/li>\n
      • \n
        \n
        \n
        \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : kaka6 <\/span> <\/div>\n
        <\/i> <\/span> <\/div>\n<\/p><\/div>\n
        @weifan \u6211\u4e5f\u53ea\u662f\u65b0\u7528\u6237\uff0c\u53d1\u4e0d\u4e86\u56fe\u7247\uff0c\u6211\u662f\u5728\u5916\u9762\u53d1\u5f15\u7528\u7684 <\/div>\n<\/p><\/div>\n<\/li>\n
      • \n
        \n
        \n
        \u8cc7\u6df1\u5927\u4f6c : yfwl <\/span> <\/div>\n
        <\/i> <\/span> <\/div>\n<\/p><\/div>\n
        \u6240\u4ee5\u6211\u60f3\u95ee\u9664\u4e86\u91cd\u542f\u8fd8\u6709\u6ca1\u6709\u4e0d\u505c\u6b62\u670d\u52a1\u53bb\u6e05\u7406\u7684\u65b9\u6cd5\uff1f <\/div>\n<\/p><\/div>\n<\/li>\n
      • \n
        \n
        \n
        \u8cc7\u6df1\u5927\u4f6c : muskill <\/span> <\/div>\n
        <\/i> <\/span> <\/div>\n<\/p><\/div>\n
        @yfwl https:\/\/zhuanlan.zhihu.com\/p\/66336976 <\/div>\n<\/p><\/div>\n<\/li>\n
      • \n
        \n
        \n
        \u8cc7\u6df1\u5927\u4f6c : simonlu9 <\/span> <\/div>\n
        <\/i> <\/span> <\/div>\n<\/p><\/div>\n
        \u5343\u4e07\u4e0d\u8981\u5728\u7ebf\u4e0a\u5220\u5927\u91cf\u6570\u636e\uff0c\u4f1a\u4ea7\u751f\u5f88\u5927 undo \u548c redo \u7a7a\u95f4\uff0c\u6267\u884c\u8d85\u6162\uff0c\u8fd8\u662f\u5206\u6279\u5220\u5427 <\/div>\n<\/p><\/div>\n<\/li>\n
      • \n","protected":false},"excerpt":{"rendered":"

        mysql \u6570\u636e\u5e93\u78c1\u76d8\u5de8\u91cf\u5360\u7528\u60ca\u9b42…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/229419"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=229419"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/229419\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=229419"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=229419"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=229419"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}