{"id":698,"date":"2024-04-30T15:31:58","date_gmt":"2024-04-30T07:31:58","guid":{"rendered":"https:\/\/www.db2go.net\/?p=698"},"modified":"2024-04-30T15:31:58","modified_gmt":"2024-04-30T07:31:58","slug":"innodb_force_recovery-%e7%9a%84%e4%b8%80%e4%ba%9b%e8%af%b4%e6%98%8e","status":"publish","type":"post","link":"https:\/\/www.db2go.net\/?p=698","title":{"rendered":"innodb_force_recovery \u7684\u4e00\u4e9b\u8bf4\u660e"},"content":{"rendered":"<h2><code>innodb_force_recovery<\/code> \u7684\u4e00\u4e9b\u8bf4\u660e<\/h2>\n<p><code>innodb_force_recovery<\/code> \u662f MySQL \u4e2d\u7684\u4e00\u4e2a\u542f\u52a8\u9009\u9879\uff0c\u5b83\u5141\u8bb8\u6211\u4eec\u5728\u9047\u5230 InnoDB \u8868\u7a7a\u95f4\u635f\u574f\u65f6\uff0c\u901a\u8fc7\u5f3a\u5236\u6062\u590d\u6765\u542f\u52a8 MySQL \u670d\u52a1\u5668\u3002\u542f\u7528\u8fd9\u4e2a\u9009\u9879\u540e\uff0cMySQL \u4f1a\u5c1d\u8bd5\u8df3\u8fc7\u635f\u574f\u7684\u90e8\u5206\u5e76\u7ee7\u7eed\u8fd0\u884c\uff0c\u8fd9\u5bf9\u4e8e\u6062\u590d\u6570\u636e\u548c\u9632\u6b62\u6570\u636e\u4e22\u5931\u975e\u5e38\u6709\u7528\u3002<\/p>\n<p>\u8fd9\u4e2a\u9009\u9879\u6709\u51e0\u4e2a\u4e0d\u540c\u7684\u7ea7\u522b\uff0c\u4ece 1 \u5230 6\uff0c\u6bcf\u4e2a\u7ea7\u522b\u4ee3\u8868\u4e0d\u540c\u7684\u6062\u590d\u5f3a\u5ea6\uff1a<\/p>\n<ul>\n<li>\u7ea7\u522b 1\uff1a\u8fd9\u662f\u6700\u8f7b\u5fae\u7684\u6062\u590d\u5c1d\u8bd5\uff0c\u901a\u5e38\u53ef\u4ee5\u5904\u7406\u5927\u591a\u6570\u5d29\u6e83\u540e\u7684\u6062\u590d\u3002<\/p>\n<\/li>\n<li>\n<p>\u7ea7\u522b 2\uff1a\u5982\u679c\u7ea7\u522b 1 \u4e0d\u8d77\u4f5c\u7528\uff0c\u53ef\u4ee5\u5c1d\u8bd5\u8fd9\u4e2a\u7ea7\u522b\uff0c\u5b83\u4f1a\u66f4\u52a0\u5f3a\u5236\u5730\u8fdb\u884c\u6062\u590d\u3002<\/p>\n<\/li>\n<li>\u7ea7\u522b 3\uff1a\u66f4\u5f3a\u7684\u6062\u590d\u5c1d\u8bd5\uff0c\u53ef\u80fd\u4f1a\u5728\u6570\u636e\u5e93\u4e2d\u7559\u4e0b\u4e00\u4e9b\u635f\u574f\u7684\u6570\u636e\u3002<\/li>\n<li>\u7ea7\u522b 4\uff1a\u66f4\u9ad8\u7ea7\u522b\u7684\u6062\u590d\uff0c\u53ef\u80fd\u4f1a\u727a\u7272\u66f4\u591a\u7684\u6570\u636e\u5b8c\u6574\u6027\u3002<\/li>\n<li>\u7ea7\u522b 5\uff1a\u975e\u5e38\u5f3a\u529b\u7684\u6062\u590d\u5c1d\u8bd5\uff0c\u4e0d\u63a8\u8350\u4f7f\u7528\uff0c\u9664\u975e\u4f60\u771f\u7684\u9700\u8981\u6062\u590d\u6570\u636e\u5e93\u3002<\/li>\n<li>\u7ea7\u522b 6\uff1a\u8fd9\u662f\u6700\u5f3a\u529b\u7684\u6062\u590d\u7ea7\u522b\uff0c\u4f1a\u5c3d\u53ef\u80fd\u5730\u6062\u590d\u8868\u7a7a\u95f4\uff0c\u4f46\u53ef\u80fd\u4f1a\u9020\u6210\u5927\u91cf\u6570\u636e\u4e22\u5931\u3002<\/li>\n<\/ul>\n<p>\u542f\u7528 <code>innodb_force_recovery<\/code> \u7684\u65b9\u6cd5\u662f\u5728\u542f\u52a8 MySQL \u65f6\uff0c\u901a\u8fc7\u547d\u4ee4\u884c\u53c2\u6570\u6216\u914d\u7f6e\u6587\u4ef6\u6765\u8bbe\u7f6e\u3002\u4f8b\u5982\uff0c\u5728\u547d\u4ee4\u884c\u542f\u52a8 MySQL \u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<p><code>mysqld --innodb_force_recovery=1<\/code><\/p>\n<p>\u6216\u8005\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u8bbe\u7f6e\uff0c\u53ef\u4ee5\u627e\u5230 [mysqld] \u90e8\u5206\uff0c\u7136\u540e\u6dfb\u52a0\u4e00\u884c\uff1a<\/p>\n<p><code>innodb_force_recovery = 1<\/code><\/p>\n<p>\u9700\u8981\u6ce8\u610f\uff0c\u4f7f\u7528 innodb_force_recovery \u53ef\u80fd\u4f1a\u5bfc\u81f4\u6570\u636e\u4e22\u5931\u6216\u635f\u574f\uff0c\u56e0\u6b64\uff0c\u53ea\u6709\u5728\u5176\u4ed6\u6240\u6709\u6062\u590d\u65b9\u6cd5\u90fd\u5931\u8d25\u65f6\uff0c\u624d\u5e94\u8be5\u8003\u8651\u4f7f\u7528\u5b83\u3002\u5728\u5c1d\u8bd5\u4f7f\u7528 innodb_force_recovery \u4e4b\u524d\uff0c\u5f3a\u70c8\u5efa\u8bae\u5907\u4efd\u6211\u4eec\u7684\u6570\u636e\u5e93\u3002<\/p>\n<h2>\u4f7f\u7528\u811a\u672c\u68c0\u67e5\u6570\u636e\u5e93<\/h2>\n<p>\u6b64\u5916\uff0c\u4e00\u65e6\u80fd\u591f\u4f7f\u7528 innodb_force_recovery \u6210\u529f\u542f\u52a8\u4e86 MySQL\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e0b\u9762\u7684 mysqlcheck.sh \u811a\u672c\u6765\u5bf9\u6570\u636e\u5e93\u505a\u4e00\u6b21\u5168\u9762\u7684\u68c0\u67e5\u3002<\/p>\n<pre><code class=\"language-shell line-numbers\">#!\/bin\/bash\n\n# MySQL \u914d\u7f6e\u6587\u4ef6\uff0c\u7528\u4e8e\u5b58\u50a8\u7528\u6237\u540d\u548c\u5bc6\u7801\nCONFIG_FILE=\".my.cnf\"\n\n\n# \u8f93\u51fa\u6587\u4ef6\u540d\nOUTPUT_FILE=\".\/mysqlcheck_results_<span class=\"katex math inline\">(date +\"%Y%m%d%H%M%S\").txt\"\n\n# \u68c0\u67e5 MySQL \u914d\u7f6e\u6587\u4ef6\u662f\u5426\u5b58\u5728\nif [ ! -f \"<\/span>CONFIG_FILE\" ]; then\n    echo \"MySQL \u914d\u7f6e\u6587\u4ef6 <span class=\"katex math inline\">CONFIG_FILE \u4e0d\u5b58\u5728\u3002\"\n    exit 1\nfi\n\n# \u4ece\u914d\u7f6e\u6587\u4ef6\u4e2d\u8bfb\u53d6 MySQL \u7528\u6237\u540d\u548c\u5bc6\u7801\nusername=<\/span>(cat <span class=\"katex math inline\">CONFIG_FILE | grep -oP '(?&lt;=^user=)[^<\/span>]*')\npassword=<span class=\"katex math inline\">(cat<\/span>CONFIG_FILE | grep -oP '(?&lt;=^password=)[^<span class=\"katex math inline\">]*')\n\n# \u5982\u679c\u6ca1\u6709\u7528.my.cnf\uff0c\u90a3\u5c31\u5728\u8fd9\u91cc\u653eMySQL\u7528\u6237\u540d\u548c\u5bc6\u7801\n#username=\"root\"\n#password=\"\u4f60\u7684\u5bc6\u7801\"\n\n# \u83b7\u53d6\u6570\u636e\u5e93\u5217\u8868\uff0c\u6392\u9664\u7cfb\u7edf\u6570\u636e\u5e93\ndatabases=<\/span>(mysql --defaults-extra-file=<span class=\"katex math inline\">CONFIG_FILE -e \"SHOW DATABASES\" | grep -Ev \"(Database|information_schema|performance_schema|mysql)\")\n\n# \u68c0\u67e5\u6570\u636e\u5e93\u5217\u8868\u662f\u5426\u4e3a\u7a7a\nif [ -z \"<\/span>databases\" ]; then\n    echo \"\u6ca1\u6709\u627e\u5230\u6570\u636e\u5e93\u3002\"\n    exit 2\nfi\n\n# \u5f00\u59cb\u68c0\u67e5\necho \"\u5f00\u59cb\u68c0\u67e5 MySQL \u6570\u636e\u5e93...\"\necho \"\u68c0\u67e5\u7ed3\u679c\u5c06\u4fdd\u5b58\u5230 <span class=\"katex math inline\">OUTPUT_FILE\"\n\n# \u904d\u5386\u6570\u636e\u5e93\u5217\u8868\u5e76\u6267\u884c mysqlcheck\uff0c\u5e76\u5c06\u7ed3\u679c\u8ffd\u52a0\u5230\u8f93\u51fa\u6587\u4ef6\nfor db in<\/span>databases; do\n    echo \"\u6b63\u5728\u68c0\u67e5\u6570\u636e\u5e93 <span class=\"katex math inline\">db...\"\n    mysqlcheck --defaults-extra-file=<\/span>CONFIG_FILE -c -u \"<span class=\"katex math inline\">username\" \"<\/span>db\" &gt;&gt; \"<span class=\"katex math inline\">OUTPUT_FILE\" 2&gt;&amp;1\n    if [<\/span>? -ne 0 ]; then\n        echo \"\u68c0\u67e5\u6570\u636e\u5e93 <span class=\"katex math inline\">db \u65f6\u51fa\u9519\u3002\u8be6\u60c5\u8bf7\u67e5\u770b<\/span>OUTPUT_FILE\"\n    else\n        echo \"\u6570\u636e\u5e93 $db \u68c0\u67e5\u5b8c\u6210\u3002\"\n    fi\ndone\n<\/code><\/pre>\n<p>\u901a\u8fc7\u68c0\u67e5\u8f93\u51fa\u8bb0\u5f55\uff0c\u770b\u662f\u5426\u5b58\u5728\u6709\u635f\u574f\u7684\u6587\u4ef6\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre><code class=\"language-sh line-numbers\">dbxx.tabxxx\nWarning  : InnoDB: The B-tree of index PRIMARY is corrupted.\nWarning  : InnoDB: Index 'id' contains 12306 entries, should be 1234567890.\nerror    : Corrupt\n\ndbxx.indxxx\nWarning  : InnoDB: The B-tree of index idx_id is corrupted.\nerror    : Corrupt\n<\/code><\/pre>\n<h2>\u5c1d\u8bd5\u91cd\u5efa\u7d22\u5f15\u6765\u89e3\u51b3\uff0c\u65b9\u6cd5\u5982\u4e0b\uff1a<\/h2>\n<h3>1. \u4f7f\u7528 <code>ALTER TABLE<\/code> \u8bed\u53e5<\/h3>\n<p>\u8fd9\u662f\u91cd\u5efa\u8868\u4e0a\u6240\u6709\u7d22\u5f15\u7684\u6700\u7b80\u5355\u65b9\u6cd5\uff0c\u4f46\u5b83\u4f1a\u9501\u5b9a\u8868\u76f4\u5230\u64cd\u4f5c\u5b8c\u6210\u3002<\/p>\n<pre><code class=\"language-sql line-numbers\">ALTER TABLE table_name ENGINE=ENGINE_NAME;\n<\/code><\/pre>\n<p>\u5c06 <code>table_name<\/code> \u66ff\u6362\u4e3a\u5b9e\u9645\u7684\u8868\u540d\uff0c<code>ENGINE_NAME<\/code> \u66ff\u6362\u4e3a\u5b9e\u9645\u7684\u8868\u5f15\u64ce\uff0c\u901a\u5e38\u662f <code>InnoDB<\/code> \u6216 <code>MyISAM<\/code>\u3002<\/p>\n<h3>2. \u4f7f\u7528 <code>ALTER TABLE<\/code> \u5355\u72ec\u91cd\u5efa\u67d0\u4e2a\u7d22\u5f15<\/h3>\n<p>\u5982\u679c\u53ea\u60f3\u91cd\u5efa\u7279\u5b9a\u7684\u7d22\u5f15\uff0c\u53ef\u4ee5\u6307\u5b9a\u7d22\u5f15\u540d\u79f0\uff1a<\/p>\n<pre><code class=\"language-sql line-numbers\">ALTER TABLE table_name DROP INDEX index_name, ADD INDEX index_name (column_list);\n<\/code><\/pre>\n<p>\u5c06 <code>table_name<\/code> \u66ff\u6362\u4e3a\u5b9e\u9645\u7684\u8868\u540d\uff0c<code>index_name<\/code> \u66ff\u6362\u4e3a\u7d22\u5f15\u7684\u540d\u79f0\uff0c<code>column_list<\/code> \u66ff\u6362\u4e3a\u7d22\u5f15\u5217\u7684\u5217\u8868\u3002<\/p>\n<h3>3. \u4f7f\u7528 <code>CREATE INDEX<\/code> \u8bed\u53e5<\/h3>\n<p>\u5982\u679c\u4f7f\u7528\u7684\u662f MyISAM \u5b58\u50a8\u5f15\u64ce\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>CREATE INDEX<\/code> \u6765\u91cd\u5efa\u7d22\u5f15\uff1a<\/p>\n<pre><code class=\"language-sql line-numbers\">CREATE INDEX index_name ON table_name (column_list);\n<\/code><\/pre>\n<h3>4. \u4f7f\u7528 <code>pt-online-schema-change<\/code> \u5de5\u5177<\/h3>\n<p>\u5bf9\u4e8e\u5927\u578b\u8868\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>pt-online-schema-change<\/code> \u5de5\u5177\u6765\u5728\u7ebf\u91cd\u5efa\u7d22\u5f15\uff0c\u8fd9\u5141\u8bb8\u5728\u91cd\u5efa\u7d22\u5f15\u65f6\u7ee7\u7eed\u4f7f\u7528\u8868\u3002<\/p>\n<pre><code class=\"language-sh line-numbers\">pt-online-schema-change \\\n  --charset=CHARSET \\\n  --keys=\"INDEX (column_list)\" \\\n  D=dest_db,t=table_name \\\n  D=src_db,t=table_name \\\n  --execute\n<\/code><\/pre>\n<h3>5. \u4f7f\u7528 <code>mysqlcheck<\/code> \u5de5\u5177<\/h3>\n<p><code>mysqlcheck<\/code> \u662f\u4e00\u4e2a\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u6765\u4fee\u590d\u548c\u4f18\u5316\u8868\u7684\u7d22\u5f15\uff1a<\/p>\n<pre><code class=\"language-shell line-numbers\">mysqlcheck -u username -p -o -A -r \/path\/to\/report_file\n<\/code><\/pre>\n<p><code>-o<\/code> \u53c2\u6570\u8868\u793a\u4f18\u5316\uff08\u5373\u91cd\u5efa\uff09\u7d22\u5f15\uff0c<code>-A<\/code> \u8868\u793a\u5bf9\u6240\u6709\u6570\u636e\u5e93\u6267\u884c\u64cd\u4f5c\uff0c<code>-r<\/code> \u8868\u793a\u751f\u6210\u62a5\u544a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>innodb_force_recovery \u7684\u4e00\u4e9b\u8bf4\u660e innodb_force_recovery \u662f MyS&hellip;<\/p>\n <a href=\"https:\/\/www.db2go.net\/?p=698\" title=\"innodb_force_recovery \u7684\u4e00\u4e9b\u8bf4\u660e\" class=\"entry-more-link\"><span>Read More<\/span> <span class=\"screen-reader-text\">innodb_force_recovery \u7684\u4e00\u4e9b\u8bf4\u660e<\/span><\/a>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"Layout":"","footnotes":""},"categories":[5],"tags":[],"class_list":["entry","author-suredandan","post-698","post","type-post","status-publish","format-standard","category-mysql"],"views":2190,"_links":{"self":[{"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/posts\/698","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.db2go.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=698"}],"version-history":[{"count":1,"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/posts\/698\/revisions"}],"predecessor-version":[{"id":699,"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/posts\/698\/revisions\/699"}],"wp:attachment":[{"href":"https:\/\/www.db2go.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=698"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.db2go.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=698"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.db2go.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=698"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}