{"id":89,"date":"2026-08-09T09:00:00","date_gmt":"2026-08-09T01:00:00","guid":{"rendered":"https:\/\/fsdata.site\/?p=89"},"modified":"2026-08-09T09:00:00","modified_gmt":"2026-08-09T01:00:00","slug":"linux-%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%a3%81%e7%9b%98%e7%a9%ba%e9%97%b4%e7%88%86%e6%bb%a1%ef%bc%9a5-%e6%ad%a5%e5%ae%9a%e4%bd%8d%e4%b8%8e%e6%b8%85%e7%90%86%e5%ae%9e%e6%88%98-2","status":"publish","type":"post","link":"https:\/\/fsdata.site\/?p=89","title":{"rendered":"Linux \u670d\u52a1\u5668\u78c1\u76d8\u7a7a\u95f4\u7206\u6ee1\uff1a5 \u6b65\u5b9a\u4f4d\u4e0e\u6e05\u7406\u5b9e\u6218"},"content":{"rendered":"<h2>\u51cc\u6668\u4e09\u70b9\u7684\u78c1\u76d8\u544a\u8b66<\/h2>\n<p>\u76d1\u63a7\u7fa4\u7a81\u7136\u5f39\u51fa\uff1a\u300c<code>\/<\/code> \u4f7f\u7528\u7387 98%\u300d\u3002\u7f51\u7ad9\u8fd8\u80fd\u8dd1\uff0c\u4f46\u65e5\u5fd7\u5199\u4e0d\u8fdb\u53bb\u4e86\uff0c\u4e0a\u4f20\u63a5\u53e3\u5f00\u59cb\u62a5\u9519\u3002\u8fd9\u79cd\u300c\u78c1\u76d8\u6253\u6ee1\u300d\u662f\u8fd0\u7ef4\u6700\u9ad8\u9891\u7684\u7ebf\u4e0a\u4e8b\u6545\u4e4b\u4e00\u3002\u597d\u6d88\u606f\u662f\uff1a\u5b83\u6709\u6807\u51c6\u6392\u67e5\u5957\u8def\uff0c<strong>du \/ df \/ lsof \u4e09\u677f\u65a7<\/strong>\u57fa\u672c\u80fd\u5b9a\u4f4d\u4e5d\u6210\u95ee\u9898\u3002<\/p>\n<h2>\u4e00\u3001\u5148\u770b\u6e05\uff1a\u662f\u300c\u771f\u7684\u6ee1\u300d\u8fd8\u662f\u300c\u5220\u4e86\u8fd8\u6ee1\u300d<\/h2>\n<pre><code>df -h\n# \u8f93\u51fa\u793a\u4f8b\n# Filesystem      Size  Used Avail Use% Mounted on\n# \/dev\/vda1        40G   38G  0.5G  98% \/\n<\/code><\/pre>\n<p><code>df<\/code> \u770b\u7684\u662f\u6587\u4ef6\u7cfb\u7edf\u5c42\u9762\u7684\u7528\u91cf\u3002\u5982\u679c <code>df<\/code> \u8bf4\u6ee1\u3001\u4f46 <code>du<\/code> \u7edf\u8ba1\u7684\u76ee\u5f55\u5927\u5c0f\u5bf9\u4e0d\u4e0a\uff0c\u591a\u534a\u662f<strong>\u88ab\u5220\u9664\u4f46\u4ecd\u5728\u88ab\u8fdb\u7a0b\u5360\u7528\u7684\u6587\u4ef6<\/strong>\uff08\u89c1\u7b2c\u4e09\u8282\uff09\u3002<\/p>\n<h2>\u4e8c\u3001\u5b9a\u4f4d\u300c\u8c01\u5360\u7a7a\u95f4\u300d\uff1adu \u4ece\u6839\u5f80\u4e0b\u6316<\/h2>\n<pre><code># \u5148\u770b\u5404\u4e00\u7ea7\u76ee\u5f55\u5360\u7528\ndu -h --max-depth=1 \/ 2>\/dev\/null | sort -h\n\n# \u94bb\u8fdb\u6700\u5927\u7684\u76ee\u5f55\u7ee7\u7eed\u6316\ndu -h --max-depth=1 \/var 2>\/dev\/null | sort -h\n\n# \u627e\u5355\u4e2a\u5927\u6587\u4ef6\uff08&gt;100M\uff09\nfind \/ -type f -size +100M -exec ls -lh {} \\; 2>\/dev\/null\n<\/code><\/pre>\n<p>\u5e38\u89c1\u771f\u51f6\u6392\u540d\uff1a<\/p>\n<ul>\n<li><code>\/var\/log<\/code>\uff1a\u6ca1\u8f6e\u8f6c\u7684\u65e5\u5fd7\uff08\u5c24\u5176\u662f Nginx\u3001Java \u5e94\u7528\u65e5\u5fd7\uff09<\/li>\n<li><code>\/var\/lib\/docker<\/code>\uff1aDocker \u955c\u50cf\/\u5377\/\u6784\u5efa\u7f13\u5b58\u5806\u79ef<\/li>\n<li>MySQL \u7684 <code>binlog<\/code> \u6216\u6162\u67e5\u8be2\u65e5\u5fd7<\/li>\n<li>\u65e0\u4eba\u6e05\u7406\u7684\u4e34\u65f6\u4e0a\u4f20\u76ee\u5f55<\/li>\n<\/ul>\n<h2>\u4e09\u3001\u7ecf\u5178\u9677\u9631\uff1a\u6587\u4ef6\u5220\u4e86\u4f46\u7a7a\u95f4\u4e0d\u91ca\u653e<\/h2>\n<p>\u4f60 <code>rm<\/code> \u4e86\u4e00\u4e2a 10G \u65e5\u5fd7\uff0c<code>df<\/code> \u5374\u7eb9\u4e1d\u4e0d\u52a8\u3002\u539f\u56e0\u662f\u8fd8\u6709\u8fdb\u7a0b\uff08\u6bd4\u5982 Nginx\u3001Java\uff09<strong>\u6253\u5f00\u7740\u8fd9\u4e2a\u6587\u4ef6\u53e5\u67c4<\/strong>\uff0c\u78c1\u76d8\u5757\u4e0d\u4f1a\u91ca\u653e\u3002<\/p>\n<pre><code># \u627e\u51fa\u300c\u5df2\u5220\u9664\u4f46\u4ecd\u88ab\u5360\u7528\u300d\u7684\u6587\u4ef6\nlsof +L1 | grep deleted\n# \u6216\nlsof | grep deleted\n<\/code><\/pre>\n<p>\u89e3\u51b3\u65b9\u5f0f\u6709\u4e24\u79cd\uff1a<\/p>\n<ol>\n<li><strong>\u91cd\u542f\u6301\u6709\u53e5\u67c4\u7684\u8fdb\u7a0b<\/strong>\uff08\u6700\u5feb\uff0c\u4f46\u4f1a\u77ed\u6682\u5f71\u54cd\u670d\u52a1\uff09\u3002<\/li>\n<li><strong>\u66f4\u4f18\u96c5\uff1a\u8ba9\u8fdb\u7a0b\u91cd\u65b0\u6253\u5f00\u65e5\u5fd7<\/strong>\u3002\u4f8b\u5982 Nginx \u7528 <code>nginx -s reopen<\/code>\uff0cJava \u7528\u65e5\u5fd7\u6846\u67b6\u7684 reload\uff1b\u6216\u8005\u5148 <code>:&gt; bigfile.log<\/code> \u6e05\u7a7a\u518d\u5220\u3002<\/li>\n<\/ol>\n<h2>\u56db\u3001Docker \u6b8b\u7559\uff1a\u6700\u5bb9\u6613\u88ab\u5ffd\u7565\u7684\u5927\u6237<\/h2>\n<pre><code># \u67e5\u770b Docker \u5360\u7528\u7684\u7a7a\u95f4\u660e\u7ec6\ndocker system df\n\n# \u6e05\u7406\uff1a\u60ac\u7a7a\u955c\u50cf\u3001\u505c\u6b62\u7684\u5bb9\u5668\u3001\u65e0\u7528\u5377\uff08\u8c28\u614e\uff09\ndocker system prune -a --volumes\n<\/code><\/pre>\n<p>\u6784\u5efa\u7f13\u5b58\u548c\u9000\u51fa\u4f46\u672a\u5220\u9664\u7684\u5bb9\u5668\u5f80\u5f80\u5403\u6389\u51e0\u5341 G\u3002\u5b9a\u671f <code>prune<\/code> \u7acb\u7aff\u89c1\u5f71\u3002<\/p>\n<h2>\u4e94\u3001\u6b62\u8840 + \u6839\u6cbb<\/h2>\n<p><strong>\u4e34\u65f6\u6b62\u8840\uff1a<\/strong><\/p>\n<ul>\n<li>\u6e05\u7a7a\u6700\u5927\u65e5\u5fd7\uff1a<code>:&gt; \/var\/log\/xxx.log<\/code>\uff08\u4fdd\u7559\u6587\u4ef6\u3001\u6e05\u7a7a\u5185\u5bb9\uff0c\u4e0d\u7834\u574f\u53e5\u67c4\u6301\u6709\u8005\uff09<\/li>\n<li>\u5220\u5b64\u7acb\u5927\u6587\u4ef6\u3001\u6e05\u7406 Docker<\/li>\n<\/ul>\n<p><strong>\u6839\u6cbb\uff08\u907f\u514d\u4e0b\u6b21\u518d\u72af\uff09\uff1a<\/strong><\/p>\n<ol>\n<li><strong>\u65e5\u5fd7\u8f6e\u8f6c<\/strong>\uff1a\u7528 <code>logrotate<\/code> \u914d\u7f6e\u6309\u5927\u5c0f\/\u5929\u5207\u5272\u5e76\u4fdd\u7559 N \u4efd\u3002<\/li>\n<li><strong>\u76d1\u63a7\u544a\u8b66<\/strong>\uff1a\u78c1\u76d8 80% \u5c31\u544a\u8b66\uff0c\u522b\u7b49 98%\u3002<\/li>\n<li><strong>\u5e94\u7528\u5c42\u9650\u5236<\/strong>\uff1a\u4e0a\u4f20\u76ee\u5f55\u8bbe\u914d\u989d\uff0c\u65e5\u5fd7\u6846\u67b6\u9650\u5236\u5355\u6587\u4ef6\u5927\u5c0f\u3002<\/li>\n<\/ol>\n<h3>logrotate \u6700\u5c0f\u53ef\u7528\u914d\u7f6e<\/h3>\n<pre><code># \/etc\/logrotate.d\/myapp\n\/var\/log\/myapp\/*.log {\n    daily\n    rotate 7\n    size 100M\n    missingok\n    notifempty\n    compress\n    copytruncate\n}\n<\/code><\/pre>\n<h2>\u5c0f\u7ed3<\/h2>\n<p>\u78c1\u76d8\u6ee1\u4e0d\u53ef\u6015\uff0c\u53ef\u6015\u7684\u662f\u6ca1\u5957\u8def\u4e71\u5220\u3002<code>df<\/code> \u770b\u603b\u91cf\u3001<code>du<\/code> \u627e\u76ee\u5f55\u3001<code>lsof<\/code> \u67e5\u5e7d\u7075\u6587\u4ef6\uff0c\u4e09\u677f\u65a7\u5b9a\u4f4d\u540e\uff0c\u7528\u65e5\u5fd7\u8f6e\u8f6c\u548c\u76d1\u63a7\u628a\u95ee\u9898\u6d88\u706d\u5728\u840c\u82bd\u3002\u628a\u5b83\u505a\u6210 runbook\uff0c\u4e0b\u6b21\u544a\u8b66\u4f60\u5c31\u80fd\u591a\u7761\u4e24\u5c0f\u65f6\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>du\u3001df\u3001lsof \u4e09\u677f\u65a7\u5b9a\u4f4d\u5360\u7a7a\u95f4\u7684\u771f\u51f6\uff0c\u4ece\u65e5\u5fd7\u3001Docker \u6b8b\u7559\u5230\u5b64\u7acb\u5927\u6587\u4ef6\uff0c\u4e00\u6587\u8bb2\u6e05\u751f\u4ea7\u73af\u5883\u78c1\u76d8\u6253\u6ee1\u7684\u6392\u67e5\u4e0e\u6b62\u8840\u3002<\/p>\n","protected":false},"author":2,"featured_media":88,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"class_list":["post-89","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pitfalls"],"_links":{"self":[{"href":"https:\/\/fsdata.site\/index.php?rest_route=\/wp\/v2\/posts\/89","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fsdata.site\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fsdata.site\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fsdata.site\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/fsdata.site\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=89"}],"version-history":[{"count":1,"href":"https:\/\/fsdata.site\/index.php?rest_route=\/wp\/v2\/posts\/89\/revisions"}],"predecessor-version":[{"id":251,"href":"https:\/\/fsdata.site\/index.php?rest_route=\/wp\/v2\/posts\/89\/revisions\/251"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fsdata.site\/index.php?rest_route=\/wp\/v2\/media\/88"}],"wp:attachment":[{"href":"https:\/\/fsdata.site\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=89"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fsdata.site\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=89"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fsdata.site\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=89"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}