{"id":2071,"date":"2017-04-13T00:53:58","date_gmt":"2017-04-12T16:53:58","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=2071"},"modified":"2025-01-13T19:50:56","modified_gmt":"2025-01-13T11:50:56","slug":"%e8%bf%9e%e6%8e%a5%e5%88%b0linux%e6%9c%8d%e5%8a%a1%e5%99%a8%e6%97%b6%e9%a6%96%e5%85%88%e8%a6%81%e8%bf%90%e8%a1%8c%e7%9a%845%e4%b8%aa%e5%91%bd%e4%bb%a4","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/jishu\/linux\/%e8%bf%9e%e6%8e%a5%e5%88%b0linux%e6%9c%8d%e5%8a%a1%e5%99%a8%e6%97%b6%e9%a6%96%e5%85%88%e8%a6%81%e8%bf%90%e8%a1%8c%e7%9a%845%e4%b8%aa%e5%91%bd%e4%bb%a4\/","title":{"rendered":"\u8fde\u63a5\u5230Linux\u670d\u52a1\u5668\u65f6\u9996\u5148\u8981\u8fd0\u884c\u76845\u4e2a\u547d\u4ee4"},"content":{"rendered":"\n<p>\u4f5c\u4e3a\u4e00\u4e2a\u7cfb\u7edf\u7ba1\u7406\u5458\/SRE \u5de5\u4f5c 5 \u5e74\u540e\uff0c\u6211\u77e5\u9053\u5f53\u6211\u8fde\u63a5\u5230\u4e00\u53f0 Linux 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class=\"keyword\">FROM<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0LOGIN@\u00a0\u00a0\u00a0IDLE\u00a0\u00a0\u00a0JCPU\u00a0\u00a0\u00a0PCPU\u00a0WHAT<\/li>\n\n\n\n<li>ubuntu\u00a0pts\/0\u00a0\u00a0\u00a0\u00a0104-7-14-91.ligh\u00a023:39\u00a0\u00a0\u00a0\u00a00.00s\u00a0\u00a00.02s\u00a0\u00a00.00s\u00a0w<\/li>\n\n\n\n<li>root\u00a0pts\/1\u00a0\u00a0\u00a0\u00a0104-7-14-91.ligh\u00a023:40\u00a0\u00a0\u00a0\u00a05.00s\u00a0\u00a00.01s\u00a0\u00a00.03s\u00a0sshd:\u00a0root\u00a0[priv]<\/li>\n\n\n\n<li>[ubuntu@ip-172-31-48-251\u00a0~]$<\/li>\n<\/ol>\n\n\n\n<p>\u8fd9\u91cc\u5217\u51fa\u4e86\u5f88\u591a\u6709\u7528\u7684\u4fe1\u606f\u3002\u9996\u5148\uff0c\u4f60\u53ef\u4ee5\u770b\u5230\u670d\u52a1\u5668\u8fd0\u884c\u65f6\u95f4 uptime\uff0c\u4e5f\u5c31\u662f\u670d\u52a1\u5668\u6301\u7eed\u8fd0\u884c\u7684\u65f6\u95f4\u3002\u7136\u540e\u4f60\u53ef\u4ee5\u770b\u5230\u6709\u54ea\u4e9b\u7528\u6237\u8fde\u63a5\u5230\u4e86\u670d\u52a1\u5668\uff0c\u5f53\u4f60\u8981\u786e\u8ba4\u4f60\u6ca1\u6709\u5f71\u54cd\u4f60\u540c\u4e8b\u5de5\u4f5c\u7684\u65f6\u5019\u8fd9\u975e\u5e38\u6709\u7528\u3002\u6700\u540e load average \u80fd\u5f88\u597d\u7684\u5411\u4f60\u5c55\u793a\u670d\u52a1\u5668\u7684\u5065\u5eb7\u72b6\u6001\u3002<\/p>\n\n\n\n<p><strong>history<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list dp-sql\">\n<li>[ubuntu@ip-172-31-48-251\u00a0~]$\u00a0history<\/li>\n\n\n\n<li>\u00a0\u00a0\u00a01\u00a0\u00a0cd\u00a0\/var\/app\/<span class=\"keyword\">current<\/span>\/log\/<\/li>\n\n\n\n<li>\u00a0\u00a0\u00a02\u00a0\u00a0ls\u00a0-al<\/li>\n\n\n\n<li>\u00a0\u00a0\u00a03\u00a0\u00a0tail\u00a0-n\u00a03000\u00a0production.log<\/li>\n\n\n\n<li>\u00a0\u00a0\u00a04\u00a0\u00a0service\u00a0apache2\u00a0status<\/li>\n\n\n\n<li>\u00a0\u00a0\u00a05\u00a0\u00a0cat\u00a0..\/..\/app\/services\/discourse_service.rb<\/li>\n<\/ol>\n\n\n\n<p>history \u80fd\u544a\u8bc9\u4f60\u5f53\u524d\u8fde\u63a5\u7684\u7528\u6237\u4e4b\u524d\u8fd0\u884c\u4e86\u4ec0\u4e48\u547d\u4ee4\u3002\u4f60\u53ef\u4ee5\u770b\u5230\u5f88\u591a\u5173\u4e8e\u8fd9\u53f0\u673a\u5668\u4e4b\u524d\u5728\u6267\u884c\u4ec0\u4e48\u7c7b\u578b\u7684\u4efb\u52a1\u3001\u53ef\u80fd\u51fa\u73b0\u4e86\u4ec0\u4e48\u9519\u8bef\u3001\u53ef\u4ee5\u4ece\u54ea\u91cc\u5f00\u59cb\u8c03\u8bd5\u5de5\u4f5c\u7b49\u4fe1\u606f\u3002<\/p>\n\n\n\n<p><strong>top<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list dp-sql\">\n<li><span class=\"keyword\">top<\/span>\u00a0&#8211;\u00a023:47:54\u00a0up\u00a0273\u00a0days,\u00a021:00,\u00a0\u00a02\u00a0users,\u00a0\u00a0<span class=\"keyword\">load<\/span>\u00a0average:\u00a00.02,\u00a00.07,\u00a00.10<\/li>\n\n\n\n<li>Tasks:\u00a0\u00a079\u00a0total,\u00a0\u00a0\u00a02\u00a0running,\u00a0\u00a077\u00a0sleeping,\u00a0\u00a0\u00a00\u00a0stopped,\u00a0\u00a0\u00a00\u00a0zombie<\/li>\n\n\n\n<li>Cpu(s):\u00a0\u00a01.0%us,\u00a0\u00a00.0%sy,\u00a0\u00a00.0%ni,\u00a098.7%id,\u00a0\u00a00.0%wa,\u00a0\u00a00.0%hi,\u00a0\u00a00.0%si,\u00a0\u00a00.3%st<\/li>\n\n\n\n<li>Mem:\u00a0\u00a0\u00a03842624k\u00a0total,\u00a0\u00a03128036k\u00a0used,\u00a0\u00a0\u00a0714588k\u00a0<span class=\"keyword\">free<\/span>,\u00a0\u00a0\u00a0148860k\u00a0buffers<\/li>\n\n\n\n<li>Swap:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a00k\u00a0total,\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a00k\u00a0used,\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a00k\u00a0<span class=\"keyword\">free<\/span>,\u00a0\u00a01052320k\u00a0cached<\/li>\n\n\n\n<li>\u00a0PID\u00a0<span class=\"func\">USER<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0PR\u00a0\u00a0NI\u00a0\u00a0VIRT\u00a0\u00a0RES\u00a0\u00a0SHR\u00a0S\u00a0%CPU\u00a0%MEM\u00a0\u00a0\u00a0\u00a0<span class=\"keyword\">TIME<\/span>+\u00a0\u00a0COMMAND<\/li>\n\n\n\n<li>21095\u00a0root\u00a0\u00a0\u00a0\u00a0\u00a0\u00a020\u00a0\u00a0\u00a00\u00a0\u00a0513m\u00a0\u00a021m\u00a04980\u00a0S\u00a0\u00a01.0\u00a0\u00a00.6\u00a0\u00a0\u00a01237:05\u00a0python<\/li>\n\n\n\n<li>1380\u00a0healthd\u00a0\u00a0\u00a020\u00a0\u00a0\u00a00\u00a0\u00a0669m\u00a0\u00a036m\u00a05712\u00a0S\u00a0\u00a00.3\u00a0\u00a01.0\u00a0265:43.82\u00a0ruby<\/li>\n\n\n\n<li>19703\u00a0dd-agent\u00a0\u00a020\u00a0\u00a0\u00a00\u00a0\u00a0142m\u00a0\u00a025m\u00a04912\u00a0S\u00a0\u00a00.3\u00a0\u00a00.7\u00a0\u00a011:32.32\u00a0python<\/li>\n\n\n\n<li>\u00a0\u00a0\u00a01\u00a0root\u00a0\u00a0\u00a0\u00a0\u00a0\u00a020\u00a0\u00a0\u00a00\u00a019596\u00a01628\u00a01284\u00a0S\u00a0\u00a00.0\u00a0\u00a00.0\u00a0\u00a0\u00a00:10.64\u00a0init<\/li>\n\n\n\n<li>\u00a0\u00a0\u00a02\u00a0root\u00a0\u00a0\u00a0\u00a0\u00a0\u00a020\u00a0\u00a0\u00a00\u00a0\u00a0\u00a0\u00a0\u00a00\u00a0\u00a0\u00a0\u00a00\u00a0\u00a0\u00a0\u00a00\u00a0S\u00a0\u00a00.0\u00a0\u00a00.0\u00a0\u00a0\u00a00:00.00\u00a0kthreadd<\/li>\n\n\n\n<li>\u00a0\u00a0\u00a03\u00a0root\u00a0\u00a0\u00a0\u00a0\u00a0\u00a020\u00a0\u00a0\u00a00\u00a0\u00a0\u00a0\u00a0\u00a00\u00a0\u00a0\u00a0\u00a00\u00a0\u00a0\u00a0\u00a00\u00a0S\u00a0\u00a00.0\u00a0\u00a00.0\u00a0\u00a027:31.42\u00a0ksoftirqd\/0<\/li>\n\n\n\n<li>\u00a0\u00a0\u00a04\u00a0root\u00a0\u00a0\u00a0\u00a0\u00a0\u00a020\u00a0\u00a0\u00a00\u00a0\u00a0\u00a0\u00a0\u00a00\u00a0\u00a0\u00a0\u00a00\u00a0\u00a0\u00a0\u00a00\u00a0S\u00a0\u00a00.0\u00a0\u00a00.0\u00a0\u00a0\u00a00:00.00\u00a0kworker\/0:0<\/li>\n\n\n\n<li>\u00a0\u00a0\u00a05\u00a0root\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a00\u00a0-20\u00a0\u00a0\u00a0\u00a0\u00a00\u00a0\u00a0\u00a0\u00a00\u00a0\u00a0\u00a0\u00a00\u00a0S\u00a0\u00a00.0\u00a0\u00a00.0\u00a0\u00a0\u00a00:00.00\u00a0kworker\/0:0H<\/li>\n\n\n\n<li>\u00a0\u00a0\u00a07\u00a0root\u00a0\u00a0\u00a0\u00a0\u00a0\u00a020\u00a0\u00a0\u00a00\u00a0\u00a0\u00a0\u00a0\u00a00\u00a0\u00a0\u00a0\u00a00\u00a0\u00a0\u00a0\u00a00\u00a0S\u00a0\u00a00.0\u00a0\u00a00.0\u00a0\u00a042:51.60\u00a0rcu_sched<\/li>\n\n\n\n<li>\u00a0\u00a0\u00a08\u00a0root\u00a0\u00a0\u00a0\u00a0\u00a0\u00a020\u00a0\u00a0\u00a00\u00a0\u00a0\u00a0\u00a0\u00a00\u00a0\u00a0\u00a0\u00a00\u00a0\u00a0\u00a0\u00a00\u00a0S\u00a0\u00a00.0\u00a0\u00a00.0\u00a0\u00a0\u00a00:00.00\u00a0rcu_bh<\/li>\n<\/ol>\n\n\n\n<p>\u4f60\u60f3\u77e5\u9053\u7684\u4e0b\u4e00\u4e2a\u4fe1\u606f\uff1a\u670d\u52a1\u5668\u5f53\u524d\u5728\u6267\u884c\u4ec0\u4e48\u5de5\u4f5c\u3002\u4f7f\u7528 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