{"id":104284,"date":"2026-09-12T11:25:09","date_gmt":"2026-09-12T03:25:09","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/104284.html"},"modified":"2026-09-12T11:25:09","modified_gmt":"2026-09-12T03:25:09","slug":"linux-%e7%a3%81%e7%9b%98%e6%bb%a1%e5%b8%b8%e8%a7%81%e5%a4%84%e7%90%86%e6%96%b9%e6%a1%88","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/104284.html","title":{"rendered":"Linux \u78c1\u76d8\u6ee1\u5e38\u89c1\u5904\u7406\u65b9\u6848"},"content":{"rendered":"

\u6b65\u9aa4 1：\u5148\u5b9a\u4f4d\u54ea\u91cc\u5360\u6ee1\u78c1\u76d8<\/h3>\n

# \u67e5\u770b\u78c1\u76d8\u5206\u533a\u4f7f\u7528\u7387
\ndf -h
\n# \u8fdb\u5165\u78c1\u76d8\u4f7f\u7528\u7387100%\u7684\u6302\u8f7d\u70b9，\u9010\u5c42\u770b\u54ea\u4e2a\u76ee\u5f55\u5927
\ndu -sh *
\n# \u53ea\u770b\u4e00\u7ea7\u76ee\u5f55\u5927\u5c0f
\ndu -h –max-depth=1 \/var\/log<\/p>\n

\u5751：df \u548c du \u7ed3\u679c\u4e0d\u4e00\u81f4：\u5927\u6982\u7387\u5b58\u5728\u5df2\u7ecf rm，\u4f46\u8fdb\u7a0b\u8fd8\u6301\u6709\u53e5\u67c4\u7684 deleted \u65e5\u5fd7\u3002<\/p>\n

du \u770b\u4e0d\u5230，\u4f46 df \u7edf\u8ba1\u5360\u7528\u3002<\/p>\n

\u6b65\u9aa4 2：\u533a\u5206\u4e24\u79cd\u60c5\u51b5<\/h3>\n

\u60c5\u51b5 A：\u5927\u65e5\u5fd7\u6587\u4ef6，\u8fdb\u7a0b\u6ca1\u6709\u5728\u5199（\u5f52\u6863\u65e7\u65e5\u5fd7）<\/h5>\n

\u76f4\u63a5 rm \u5220\u9664\u5373\u53ef\u91ca\u653e\u7a7a\u95f4\u3002<\/p>\n

\u60c5\u51b5 B：\u5927\u65e5\u5fd7\u6587\u4ef6，\u8fdb\u7a0b\u8fd8\u5728\u6301\u7eed\u5199\u5165（\u6700\u5e38\u89c1）<\/h5>\n

\u274c\u7981\u6b62\u76f4\u63a5 rm\u3002<\/p>\n

\u2705\u6b63\u786e\u64cd\u4f5c：\u6e05\u7a7a\u6587\u4ef6<\/p>\n

> big-app.log<\/p>\n

\u6267\u884c\u5b8c，df \u770b\u78c1\u76d8\u7a7a\u95f4\u9a6c\u4e0a\u91ca\u653e\u3002<\/p>\n

\u5982\u679c\u624b\u8d31\u5df2\u7ecf rm \u4e86\u6d3b\u8dc3\u65e5\u5fd7\u6587\u4ef6：<\/p>\n

  • lsof |grep deleted \u627e\u5230 PID<\/li>\n
  • \u4e1a\u52a1\u5141\u8bb8：\u91cd\u542f\u5bf9\u5e94\u670d\u52a1\u8fdb\u7a0b，\u91ca\u653e\u53e5\u67c4，\u78c1\u76d8\u91ca\u653e\u3002<\/li>\n
  • \u4e1a\u52a1\u4e0d\u80fd\u91cd\u542f：\u8fdb\u5165\u8be5\u6587\u4ef6\u7684 \/proc\/<pid>\/fd\/ \u76ee\u5f55，\u627e\u5230\u5bf9\u5e94 fd，\u6267\u884c > fd\u7f16\u53f7 \u6e05\u7a7a\u6587\u4ef6，\u4e0d\u7528\u91cd\u542f\u8fdb\u7a0b\u3002<\/li>\n

    \u793a\u4f8b（\u4e0d\u91cd\u542f\u8fdb\u7a0b\u6e05\u7a7a\u5df2\u5220\u9664\u53e5\u67c4\u6587\u4ef6）<\/p>\n

    cd \/proc\/1234\/fd
    \n> 3<\/p>\n

    \u6b65\u9aa4 3：\u4e34\u65f6\u5e94\u6025\u5904\u7406（\u78c1\u76d8\u5b8c\u5168\u5199\u6ee1，\u8fde\u521b\u5efa\u4e34\u65f6\u6587\u4ef6\u90fd\u5931\u8d25）<\/h3>\n

    \u78c1\u76d8 100%，\u8fde\u521b\u5efa tmp \u6587\u4ef6\u90fd\u5931\u8d25：<\/p>\n

  • \u4f18\u5148\u6e05\u7a7a\u5927\u7684\u6d3b\u8dc3\u65e5\u5fd7 > xxx.log，\u4e0d\u8981\u4ea7\u751f\u65b0\u6587\u4ef6；<\/li>\n
  • \u5982\u679c\u6709\u8001\u65e7\u5f52\u6863\u65e5\u5fd7，\u53ef\u4ee5 rm \u5220\u9664；<\/li>\n
  • \u5e94\u6025\u4e4b\u540e，\u5fc5\u987b\u6839\u6cbb，\u4e0d\u80fd\u6bcf\u6b21\u624b\u52a8\u6e05\u7406\u3002<\/li>\n

    \u6b65\u9aa4 4：\u6839\u6cbb\u65b9\u6848（\u9632\u6b62\u518d\u6b21\u78c1\u76d8\u6253\u6ee1）<\/h3>\n

    4.1\u00a0crontab \u5b9a\u65f6\u81ea\u52a8\u6e05\u7406 7 \u5929\u65e5\u5fd7\u914d\u7f6e<\/h4>\n

    1）find \u547d\u4ee4\u8bf4\u660e<\/h5>\n

    find \/var\/log\/hadoop-yarn -type f -name "*.log*" -mtime +7 -delete<\/p>\n

    \u53c2\u6570\u89e3\u91ca<\/p>\n

      \n
    • \/var\/log\/hadoop-yarn：\u8981\u6e05\u7406\u7684\u65e5\u5fd7\u76ee\u5f55<\/li>\n
    • -type f：\u53ea\u5339\u914d\u666e\u901a\u6587\u4ef6<\/li>\n
    • -name "*.log*"：\u5339\u914d\u65e5\u5fd7\u5f52\u6863\u6587\u4ef6（log.1\u3001log\u2011\u65e5\u671f.gz）<\/li>\n
    • -mtime +7：\u4fee\u6539\u65f6\u95f4\u5927\u4e8e 7 \u5929\u7684\u6587\u4ef6<\/li>\n
    • -delete：\u76f4\u63a5\u5220\u9664<\/li>\n<\/ul>\n

      \u26a0\ufe0f\u7981\u5fcc：\u4e0d\u8981\u5339\u914d *.log，\u8fd9\u662f\u7a0b\u5e8f\u6b63\u5728\u8ffd\u52a0\u5199\u7684\u6d3b\u8dc3\u65e5\u5fd7！\u53ea\u5339\u914d\u5207\u5272\u540e\u7684\u5f52\u6863\u6587\u4ef6\u3002<\/p>\n

      2）\u7f16\u5199 shell \u811a\u672c（\u63a8\u8350，\u65b9\u4fbf\u8c03\u8bd5\u3001\u6253\u65e5\u5fd7）<\/h5>\n

      \/opt\/scripts\/clean_old_log.sh<\/p>\n

      #!\/bin\/bash
      \n# \u6e05\u74067\u5929\u4ee5\u4e0a\u5f52\u6863\u65e5\u5fd7，\u7981\u6b62\u5220\u9664\u6b63\u5728\u5199\u5165\u7684xxx.log
      \nLOG_DIRS=(
      \n"\/var\/log\/hadoop-yarn"
      \n"\/var\/log\/spark"
      \n"\/opt\/flink\/log"
      \n)<\/p>\n

      for dir in "${LOG_DIRS[@]}"
      \ndo
      \n if [ -d "$dir" ];then
      \n find "$dir" -type f -name "*.log.*" -mtime +7 -delete
      \n fi
      \ndone<\/p>\n

      \u8d4b\u6267\u884c\u6743\u9650<\/p>\n

      chmod +x \/opt\/scripts\/clean_old_log.sh<\/p>\n

      \u672c\u5730\u5148\u624b\u52a8\u6267\u884c\u4e00\u904d\u6d4b\u8bd5，\u786e\u8ba4\u4e0d\u4f1a\u8bef\u5220\u6587\u4ef6\u3002<\/p>\n

      3）\u914d\u7f6e crontab \u5b9a\u65f6\u4efb\u52a1<\/h5>\n

      crontab -e<\/p>\n

      \u52a0\u5165，\u6bcf\u5929\u51cc\u6668 2 \u70b9\u6267\u884c\u6e05\u7406（\u4e1a\u52a1\u4f4e\u5cf0）<\/p>\n

      0 2 * * * \/opt\/scripts\/clean_old_log.sh >> \/opt\/scripts\/clean_log_cron.log 2>&1<\/p>\n

        \n
      • 0 2 * * *：\u6bcf\u5929 02:00 \u8fd0\u884c<\/li>\n
      • >> \/opt\/scripts\/clean_log_cron.log 2>&1：\u628a\u811a\u672c\u8f93\u51fa\u548c\u9519\u8bef\u8f93\u51fa\u8bb0\u5f55，\u65b9\u4fbf\u6392\u67e5\u5b9a\u65f6\u4efb\u52a1\u662f\u5426\u5f02\u5e38\u3002<\/li>\n<\/ul>\n

        \u67e5\u770b\u5df2\u914d\u7f6e\u5b9a\u65f6\u4efb\u52a1<\/p>\n

        crontab -l<\/p>\n

        4.2\u00a0\u914d\u7f6e logrotate \u65e5\u5fd7\u8f6e\u8f6c（\u6807\u51c6\u751f\u4ea7\u65b9\u6848）<\/h4>\n

        \u6309\u6587\u4ef6\u5927\u5c0f \/ \u65f6\u95f4\u5207\u5272\u65e5\u5fd7，\u81ea\u52a8\u538b\u7f29\u3001\u81ea\u52a8\u5220\u9664 N \u5929\u524d\u65e5\u5fd7\u3002\u907f\u514d\u5355\u65e5\u5fd7\u65e0\u9650\u81a8\u80c0\u3002<\/p>\n

        \u7b80\u5355\u793a\u4f8b\u914d\u7f6e \/etc\/logrotate.d\/bizlog\u00a0\u00a0\u00a0\u00a0<\/p>\n

        \/opt\/app\/logs\/*.log {
        \n daily
        \n rotate 7
        \n compress
        \n missingok
        \n copytruncate
        \n}<\/p>\n

          \n
        • daily：\u6309\u5929\u5207\u5272<\/li>\n
        • rotate 7：\u4fdd\u7559 7 \u4efd\u5386\u53f2\u65e5\u5fd7<\/li>\n
        • copytruncate：\u590d\u5236\u540e\u622a\u65ad\u539f\u6587\u4ef6，\u4e0d\u9700\u8981\u91cd\u542f\u5e94\u7528，\u9002\u5408\u4e0d\u80fd\u91cd\u542f\u7684\u670d\u52a1\u3002<\/li>\n<\/ul>\n

          1）\u4e1a\u52a1\u7a0b\u5e8f\u672c\u8eab\u914d\u7f6e\u65e5\u5fd7\u7ea7\u522b，\u5173\u95ed\u5927\u91cf DEBUG \u6253\u5370\u3002<\/p>\n

          2）\u5b9a\u65f6\u4efb\u52a1\u914d\u5408 find \u6e05\u7406\u5f52\u6863\u65e5\u5fd7（\u4ec5\u6e05\u7406\u5df2\u7ecf\u5207\u5272\u5b8c\u6bd5\u7684\u65e7\u65e5\u5fd7，\u4e0d\u8981\u5904\u7406\u6b63\u5728\u5199\u7684\u65e5\u5fd7）\u3002<\/p>\n

          \u91cd\u8981\u63d0\u9192：<\/p>\n

          crontab \u53ea\u6e05\u7406\u5df2\u7ecf\u5207\u5272\u5b8c\u6bd5\u7684\u5f52\u6863\u65e7\u65e5\u5fd7，\u7edd\u5bf9\u4e0d\u8981\u53bb\u5220\u9664\u5e94\u7528\u6b63\u5728\u6301\u7eed\u5199\u5165\u7684\u6d3b\u8dc3\u65e5\u5fd7\u6587\u4ef6，\u5426\u5219\u51fa\u73b0 deleted \u5e7d\u7075\u6587\u4ef6，\u78c1\u76d8\u7a7a\u95f4\u4e0d\u91ca\u653e\u3002<\/p>\n

          \u6d3b\u8dc3\u65e5\u5fd7\u4ea4\u7ed9 logrotate；<\/p>\n

          crontab \u9002\u5408\u6e05\u7406 .log.1\u3001.log\u201120260908.gz \u8fd9\u7c7b\u8f6e\u8f6c\u540e\u7684\u5386\u53f2\u5f52\u6863\u6587\u4ef6\u3002<\/p>\n

          \u4e09\u3001\u5bf9\u6bd4\u4e24\u79cd\u6839\u6cbb\u65b9\u6848<\/h3>\n\n\u65b9\u6848logrotatecrontab+find<\/tr>\n\n\n\n\n\n
          \u4f5c\u7528<\/td>\n\u65e5\u5fd7\u5207\u5272\u3001\u538b\u7f29\u3001\u4fdd\u7559\u4efd\u6570\u3001\u622a\u65ad\u539f\u6587\u4ef6<\/td>\n\u53ea\u5220\u9664\u5df2\u7ecf\u5207\u5272\u5b8c\u6210\u7684\u65e7\u5f52\u6863\u6587\u4ef6<\/td>\n<\/tr>\n
          \u5904\u7406\u6d3b\u8dc3\u65e5\u5fd7<\/td>\n\u2705\u652f\u6301，copytruncate \u6a21\u5f0f\u4e0d\u7528\u91cd\u542f\u670d\u52a1<\/td>\n\u274c\u4e0d\u80fd\u5904\u7406\u6d3b\u8dc3\u65e5\u5fd7<\/td>\n<\/tr>\n
          \u80fd\u529b<\/td>\n\u5b8c\u6574\u65e5\u5fd7\u6cbb\u7406<\/td>\n\u4ec5\u505a\u65e7\u6587\u4ef6\u5220\u9664<\/td>\n<\/tr>\n
          \u751f\u4ea7\u5efa\u8bae<\/td>\n\u9996\u9009\u5fc5\u5907<\/td>\n\u8f85\u52a9，\u642d\u914d logrotate \u4f7f\u7528<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

          \u6b65\u9aa4 1：\u5148\u5b9a\u4f4d\u54ea\u91cc\u5360\u6ee1\u78c1\u76d8# \u67e5\u770b\u78c1\u76d8\u5206\u533a\u4f7f\u7528\u7387
          \ndf -h
          \n# \u8fdb\u5165\u78c1\u76d8\u4f7f\u7528\u7387100%\u7684\u6302\u8f7d\u70b9，\u9010\u5c42\u770b\u54ea\u4e2a\u76ee\u5f55\u5927
          \ndu -sh *
          \n# \u53ea\u770b\u4e00\u7ea7\u76ee\u5f55\u5927\u5c0f
          \ndu -h –max-depth1 \/var\/log\u5751：df \u548c du \u7ed3\u679c\u4e0d\u4e00\u81f4：\u5927\u6982\u7387\u5b58\u5728\u5df2\u7ecf rm，\u4f46\u8fdb\u7a0b\u8fd8\u6301\u6709\u53e5\u67c4\u7684 deleted \u65e5\u5fd7\u3002du \u770b\u4e0d\u5230，\u4f46 df \u7edf\u8ba1\u5360\u7528\u3002\u6b65\u9aa4 2：\u533a\u5206\u4e24\u79cd\u60c5\u51b5\u60c5\u51b5 A&#xff<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[58,43,44],"topic":[],"class_list":["post-104284","post","type-post","status-publish","format-standard","hentry","category-server","tag-linux","tag-43","tag-44"],"yoast_head":"\nLinux \u78c1\u76d8\u6ee1\u5e38\u89c1\u5904\u7406\u65b9\u6848 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/104284.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Linux \u78c1\u76d8\u6ee1\u5e38\u89c1\u5904\u7406\u65b9\u6848 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u6b65\u9aa4 1：\u5148\u5b9a\u4f4d\u54ea\u91cc\u5360\u6ee1\u78c1\u76d8# \u67e5\u770b\u78c1\u76d8\u5206\u533a\u4f7f\u7528\u7387 df -h # \u8fdb\u5165\u78c1\u76d8\u4f7f\u7528\u7387100%\u7684\u6302\u8f7d\u70b9，\u9010\u5c42\u770b\u54ea\u4e2a\u76ee\u5f55\u5927 du -sh * # \u53ea\u770b\u4e00\u7ea7\u76ee\u5f55\u5927\u5c0f du -h --max-depth1 \/var\/log\u5751：df \u548c du \u7ed3\u679c\u4e0d\u4e00\u81f4：\u5927\u6982\u7387\u5b58\u5728\u5df2\u7ecf rm，\u4f46\u8fdb\u7a0b\u8fd8\u6301\u6709\u53e5\u67c4\u7684 deleted \u65e5\u5fd7\u3002du \u770b\u4e0d\u5230，\u4f46 df \u7edf\u8ba1\u5360\u7528\u3002\u6b65\u9aa4 2：\u533a\u5206\u4e24\u79cd\u60c5\u51b5\u60c5\u51b5 A&#xff\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/104284.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-09-12T03:25:09+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/104284.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/104284.html\",\"name\":\"Linux \u78c1\u76d8\u6ee1\u5e38\u89c1\u5904\u7406\u65b9\u6848 - 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