{"id":43226,"date":"2023-09-18T16:19:39","date_gmt":"2023-06-08T15:05:27","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/grafana%e5%92%8cprometheus\/"},"modified":"2024-05-04T00:22:03","modified_gmt":"2024-05-03T16:22:03","slug":"grafana%e5%92%8cprometheus","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/grafana%e5%92%8cprometheus\/","title":{"rendered":"Grafana\u548cPrometheus"},"content":{"rendered":"<h1>VirtualBox 6 \u662f\u4e00\u4e2a\u9009\u9879\u3002<\/h1>\n<p>\u5ba2\u5e95\u64cd\u4f5c\u7cfb\u7edf\uff1aCentOS Linux\u53d1\u5e037.5.1804\u7248\uff08\u6838\u5fc3\u7248\uff09<\/p>\n<p>\u865a\u62df\u673a\u7684[\u8bbe\u7f6e] -&gt; [\u7f51\u7edc\u8bbe\u7f6e]<br \/>\n\u5206\u914d\uff1aNAT<br \/>\n[\u9ad8\u7ea7] -&gt; [\u7aef\u53e3\u8f6c\u53d1]<br \/>\nSSH\uff1aTCP 1022 -&gt; 22<br \/>\nPromethus GUI\uff1aTCP 19090 -&gt; 9090<br \/>\nGrafana GUI\uff1aTCP 13000 -&gt; 3000<\/p>\n<h1>\u6a21\u5757\u7248\u672c\u548c\u8f6f\u4ef6\u5305\u7248\u672c<\/h1>\n<p>\u666e\u7f57\u7c73\u4fee\u65af\uff1a2.14.0<br \/>\n\u5305\uff1aprometheus-2.14.0.linux-amd64.tar.gz<\/p>\n<p>Node exporter: 0.18.1<br \/>\n\u8f6f\u4ef6\u5305\uff1anode_exporter-0.18.1.linux-amd64.tar.gz<\/p>\n<p>Grafana\u7248\u672c\uff1a6.4.4<br \/>\n\u8f6f\u4ef6\u5305\uff1agrafana-6.4.4-1.x86_64.rpm<\/p>\n<h1>CentOS\u5b89\u88c5<\/h1>\n<h2>\u5728\u9632\u706b\u5899\u4e2d\u5141\u8bb8 http \u548c https<\/h2>\n<p>\u9632\u706b\u5899\u8d44\u6599\u5e93<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>systemctl status firewalld  <span class=\"c\"># active (runnig)<\/span>\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo <\/span>firewall-cmd <span class=\"nt\">--list-all<\/span>\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo <\/span>firewall-cmd <span class=\"nt\">--permanent<\/span> <span class=\"nt\">--add-service<\/span><span class=\"o\">=<\/span>http\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo <\/span>firewall-cmd <span class=\"nt\">--permanent<\/span> <span class=\"nt\">--add-service<\/span><span class=\"o\">=<\/span>https\r\n\r\n<span class=\"c\"># \u30dd\u30fc\u30c8\u8a31\u53ef<\/span>\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo <\/span>firewall-cmd <span class=\"nt\">--permanent<\/span> <span class=\"nt\">--add-port<\/span><span class=\"o\">=<\/span>22\/tcp\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo <\/span>firewall-cmd <span class=\"nt\">--permanent<\/span> <span class=\"nt\">--add-port<\/span><span class=\"o\">=<\/span>9090\/tcp\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo <\/span>firewall-cmd <span class=\"nt\">--permanent<\/span> <span class=\"nt\">--add-port<\/span><span class=\"o\">=<\/span>9100\/tcp\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo <\/span>firewall-cmd <span class=\"nt\">--permanent<\/span> <span class=\"nt\">--add-port<\/span><span class=\"o\">=<\/span>3000\/tcp\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo <\/span>firewall-cmd <span class=\"nt\">--list-ports<\/span>\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo <\/span>firewall-cmd <span class=\"nt\">--reload<\/span>\r\n\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo <\/span>systemctl stop firewalld  <span class=\"c\"># \u4ee5\u4e0b\u691c\u8a3c\u74b0\u5883<\/span>\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo <\/span>systemctl is-enabled firewalld  <span class=\"c\"># enabled\u306b\u306a\u3063\u3066\u3044\u305f\u3089\u4e0b\u8a18\u3092\u5b9f\u65bd<\/span>\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo <\/span>systemctl disable firewalld\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo <\/span>systemctl is-enabled firewalld\r\n<\/code><\/pre>\n<h1>Prometheus\u5b89\u88c5<\/h1>\n<h2>\u5b89\u88c5\u64cd\u4f5c<\/h2>\n<p>\u5b98\u65b9\u7f51\u7ad9<br \/>\n\u6240\u6709\u8005\u7b49\u5747\u4e3aroot<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span><span class=\"nb\">cd<\/span> \/tmp\r\n<span class=\"nv\">$ <\/span>curl <span class=\"nt\">-LO<\/span> https:\/\/github.com\/prometheus\/prometheus\/releases\/download\/v2.14.0\/prometheus-2.14.0.linux-amd64.tar.gz\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">tar <\/span>xvzf prometheus-2.14.0.linux-amd64.tar.gz\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo cp<\/span> <span class=\"nt\">-r<\/span> prometheus-2.14.0.linux-amd64 \/etc\/prometheus\r\n<\/code><\/pre>\n<p>\u666e\u7f57\u7c73\u4fee\u65af\u7684\u542f\u52a8\u811a\u672c\u914d\u7f6e\u548c\u65e5\u5fd7\u8f6e\u6362\u914d\u7f6e\uff0c\u53ef\u53c2\u8003\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span><span class=\"nb\">sudo<\/span> \/etc\/init.d\/prometheus start\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo<\/span> \/etc\/init.d\/prometheus status\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo<\/span> \/etc\/init.d\/prometheus stop\r\n<\/code><\/pre>\n<h1>\u786e\u8ba4\u5bf9Prometheus\u7684\u8bbf\u95ee<\/h1>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d50e437434c4406cc7e7e\/18-0.jpeg\" alt=\"1.JPG\" \/><\/div>\n<h1>\u786e\u8ba4\u6267\u884c PromQL<\/h1>\n<p>\u5728\u6807\u6709&#8221;Expression&#8221;\u7684\u6846\u4e2d\u8f93\u5165\u67e5\u8be2\u5e76\u70b9\u51fb&#8221;Execute&#8221;\u6267\u884c\u3002<\/p>\n<p>\u786e\u8ba4\u4e0a\u7ebf\u7684\u670d\u52a1\u5668<br \/>\n\u8868\u8fbe\u65b9\u5f0f: \u4e0a\u7ebf<br \/>\n\u5143\u7d20: \u4e0a\u7ebf{\u5b9e\u4f8b=&#8221;localhost:9090&#8243;,\u4efb\u52a1=&#8221;prometheus&#8221;}<br \/>\n\u6570\u503c: 1<\/p>\n<p>\u67e5\u770b\u4f7f\u7528\u4e2d\u7684\u5185\u5b58\uff08\u57fa\u672c\u5355\u4f4d\u4e3a\u5b57\u8282\u3001\u79d2\u7b49\uff09<br \/>\n\u8868\u8fbe\u5f0f\uff1aprocess_resident_memory_bytes<br \/>\n\u5143\u7d20\uff1aprocess_resident_memory_bytes{instance=&#8221;localhost:9090&#8243;,job=&#8221;prometheus&#8221;}<br \/>\n\u503c\uff1a49057792<\/p>\n<h1>\u51fa\u53e3\u5546<\/h1>\n<p>\u5df2\u5206\u914d\u7684\u7aef\u53e3\u5217\u8868: \u7aef\u53e3\u5206\u914d<\/p>\n<h1>\u5b89\u88c5Node exporter\u3002<\/h1>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span><span class=\"nb\">cd<\/span> \/tmp\r\n<span class=\"nv\">$ <\/span>curl <span class=\"nt\">-LO<\/span> https:\/\/github.com\/prometheus\/node_exporter\/releases\/download\/v0.18.1\/node_exporter-0.18.1.linux-amd64.tar.gz\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">tar <\/span>xvzf node_exporter-0.18.1.linux-amd64.tar.gz\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo cp<\/span> <span class=\"nt\">-r<\/span> node_exporter-0.18.1.linux-amd64 \/etc\/node_exporter\r\n<\/code><\/pre>\n<p>\u8bf7\u53c2\u8003Node exporter\u7684\u542f\u52a8\u811a\u672c\u8bbe\u7f6e\u548c\u65e5\u5fd7\u8f6e\u8f6c\u8bbe\u7f6e\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span><span class=\"nb\">sudo <\/span>vim \/etc\/rc.d\/init.d\/node_exporter  <span class=\"c\"># \u8d77\u52d5\u30b9\u30af\u30ea\u30d7\u30c8\u4f5c\u6210<\/span>\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo chmod<\/span> +x \/etc\/rc.d\/init.d\/node_exporter\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo mkdir<\/span> \/var\/log\/node_exporter\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo<\/span> \/etc\/init.d\/node_exporter start  <span class=\"c\"># \u8d77\u52d5\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u3066\u30b9\u30bf\u30fc\u30c8<\/span>\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo<\/span> \/etc\/init.d\/node_exporter status\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo <\/span>chkconfig node_exporter on\r\n\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo <\/span>vim \/etc\/logrotate.d\/node_exporter  <span class=\"c\"># \u30ed\u30b0\u30ed\u30fc\u30c6\u30fc\u30c8\u8a2d\u5b9a\u4f5c\u6210<\/span>\r\n\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo <\/span>vim \/etc\/prometheus\/prometheus.yml  <span class=\"c\"># Prometheus \u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306b\u8ffd\u8a18<\/span>\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo<\/span> \/etc\/prometheus\/promtool check config \/etc\/prometheus\/prometheus.yml\r\nChecking \/etc\/prometheus\/prometheus.yml \r\n  SUCCESS: 0 rule files found\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo<\/span> \/etc\/init.d\/prometheus reload\r\n<\/code><\/pre>\n<p>\u4ecePrometheus\u63a7\u5236\u53f0\u6267\u884c\u5e76\u786e\u8ba4\u4ee5\u4e0b\u5185\u5bb9\uff1a<br \/>\n\u8868\u8fbe\u5f0f\uff1anode_memory_Cached_bytes<br \/>\n\u5143\u7d20\uff1anode_memory_Cached_bytes{instance=&#8221;localhost:9100&#8243;,job=&#8221;node&#8221;}<br \/>\n\u503c\uff1a996540416<\/p>\n<h1>\u5b89\u88c5Grafana\u5e76\u4e0ePrometheus\u8fdb\u884c\u96c6\u6210\u3002<\/h1>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>wget https:\/\/dl.grafana.com\/oss\/release\/grafana-6.4.4-1.x86_64.rpm\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo <\/span>yum <span class=\"nb\">install <\/span>initscripts urw-fonts\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo <\/span>rpm <span class=\"nt\">-Uvh<\/span> grafana-6.4.4-1.x86_64.rpm\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo<\/span> \/etc\/init.d\/grafana-server start\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">sudo <\/span>chkconfig grafana-server on\r\n<\/code><\/pre>\n<p>\u8bf7\u767b\u5f55\u5230 http:\/\/localhost:13000\/\uff0c\u4f7f\u7528 admin\/admin \u8fdb\u884c\u767b\u5f55\uff0c\u5e76\u8fdb\u884c\u521d\u59cb\u5bc6\u7801\u66f4\u6539\u64cd\u4f5c\u3002<\/p>\n<h2>\u6dfb\u52a0\u6570\u636e\u6e90<\/h2>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d50e437434c4406cc7e7e\/34-0.jpeg\" alt=\"datasource.JPG\" \/><\/div>\n<p>\u70b9\u51fb\u3010\u4fdd\u5b58\u5e76\u6d4b\u8bd5\u3011\u6309\u94ae\uff0c\u4f1a\u663e\u793a&#8221;\u6570\u636e\u6e90\u6b63\u5728\u5de5\u4f5c&#8221;\u3002<\/p>\n<h2>\u521b\u5efa\u4eea\u8868\u76d8<\/h2>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d50e437434c4406cc7e7e\/37-0.jpeg\" alt=\"dashboard.JPG\" \/><\/div>\n<h2>\u73af\u5883\u6587\u4ef6<\/h2>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span><span class=\"nb\">cat<\/span> \/etc\/sysconfig\/grafana-server\r\n<span class=\"nv\">GRAFANA_USER<\/span><span class=\"o\">=<\/span>grafana\r\n\r\n<span class=\"nv\">GRAFANA_GROUP<\/span><span class=\"o\">=<\/span>grafana\r\n\r\n<span class=\"nv\">GRAFANA_HOME<\/span><span class=\"o\">=<\/span>\/usr\/share\/grafana\r\n\r\n<span class=\"nv\">LOG_DIR<\/span><span class=\"o\">=<\/span>\/var\/log\/grafana\r\n\r\n<span class=\"nv\">DATA_DIR<\/span><span class=\"o\">=<\/span>\/var\/lib\/grafana\r\n\r\n<span class=\"nv\">MAX_OPEN_FILES<\/span><span class=\"o\">=<\/span>10000\r\n\r\n<span class=\"nv\">CONF_DIR<\/span><span class=\"o\">=<\/span>\/etc\/grafana\r\n\r\n<span class=\"nv\">CONF_FILE<\/span><span class=\"o\">=<\/span>\/etc\/grafana\/grafana.ini\r\n\r\n<span class=\"nv\">RESTART_ON_UPGRADE<\/span><span class=\"o\">=<\/span><span class=\"nb\">true\r\n\r\n<\/span><span class=\"nv\">PLUGINS_DIR<\/span><span class=\"o\">=<\/span>\/var\/lib\/grafana\/plugins\r\n\r\n<span class=\"nv\">PROVISIONING_CFG_DIR<\/span><span class=\"o\">=<\/span>\/etc\/grafana\/provisioning\r\n\r\n<span class=\"c\"># Only used on systemd systems<\/span>\r\n<span class=\"nv\">PID_FILE_DIR<\/span><span class=\"o\">=<\/span>\/var\/run\/grafana\r\n<\/code><\/pre>\n<h2>\u914d\u7f6e<\/h2>\n<p>\u4ee5\u4e0b\u662f\u5bf9 \/etc\/grafana\/grafana.ini \u7684\u672c\u5730\u8bed\u8a00\u7ffb\u8bd1\uff1a<br \/>\nGrafana \u914d\u7f6e\u6587\u4ef6\u4f4d\u4e8e \/etc\/grafana\/grafana.ini \u4e2d\u3002<\/p>\n<h1>PromQL (Prometheus Query Language) \u7528\u6c49\u8bed\u6765\u6982\u62ec\u662f\u4e00\u79cd\u67e5\u8be2\u8bed\u8a00\u3002<\/h1>\n<p>\u4ee5\u4e0b\u662f\u5173\u4e8e\u5b89\u88c5\u4e86node_exporter\u7684\u670d\u52a1\u5668\uff08localhost:9100\uff09\u7684\u63a5\u6536\u6570\u636e\uff08\u5b57\u8282\uff09\u7684\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n<p>node_network_receive_bytes_total\u7684\u4e2d\u6587\u610f\u601d\u662f\u201c\u8282\u70b9\u7f51\u7edc\u63a5\u6536\u7684\u603b\u5b57\u8282\u6570\u201d\u3002<\/p>\n<div>\n<div class=\"post-table\">ElementValuenode_network_receive_bytes_total{device=&#8221;enp0s3&#8243;,instance=&#8221;localhost:9100&#8243;,job=&#8221;node&#8221;}54247node_network_receive_bytes_total{device=&#8221;lo&#8221;,instance=&#8221;localhost:9100&#8243;,job=&#8221;node&#8221;}354136node_network_receive_bytes_total{device=&#8221;virbr0&#8243;,instance=&#8221;localhost:9100&#8243;,job=&#8221;node&#8221;}0node_network_receive_bytes_total{device=&#8221;virbr0-nic&#8221;,instance=&#8221;localhost:9100&#8243;,job=&#8221;node&#8221;}0<\/div>\n<\/div>\n<h2>\u6807\u7b7e\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u793a\u4f8b<\/h2>\n<p>\u8f93\u51fa\u6240\u6709\u5e26\u6709virbr\u5f00\u5934\u7684\u8bbe\u5907\u4fe1\u606f\u7684node_network_receive_bytes_total{device=~&#8221;virbr.+&#8221;}<\/p>\n<p>\u8f93\u51fa\u4e0edevice\u4e3avirbr0\u6216virbr0-nic\u7684\u5185\u5bb9\uff1anode_network_receive_bytes_total{device=~&#8221;virbr0|virbr0-nic&#8221;}<\/p>\n<h2>\u5ea6\u91cf\u7684\u6b63\u5219\u8868\u8fbe\u5f0f<\/h2>\n<p>\u67e5\u8be2&#8221;node_network_receive_bytes_total&#8221;\u548c&#8221;node_network_transmit_bytes_total&#8221;\u4e24\u4e2a\u6307\u6807\u3002{__name__=~&#8221;node_network_(receive|transmit)_bytes_total&#8221;}<\/p>\n<h2>rate() \u51fd\u6570\u7528\u4e8e\u6307\u5b9a\u65f6\u95f4\u7684\u503c\u3002<\/h2>\n<ul class=\"post-ul\">counter\u306e\u307f\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3002<\/ul>\n<p>\u5982\u679c\u60f3\u8981\u8f93\u51fa\u6bcf\u4e2a\u65f6\u95f4\u6bb5\u7684\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528\u7c7b\u4f3c\u4e8e\u201cnode_network_receive_bytes_total\u201d\u8fd9\u6837\u6309\u65f6\u95f4\u7d2f\u79ef\u6570\u636e\u7684\u65b9\u5f0f\u3002<\/p>\n<p>\u6bcf10\u5206\u949f\u7684\u503c<br \/>\nrate(node_network_receive_bytes_total[10m])<\/p>\n<h2>\u6392\u884c\u699c<\/h2>\n<p>\u8fd4\u56de\u4e94\u4e2a\u6700\u9ad8\u7684\u6570\u636e\u3002<\/p>\n<p>topk\uff085, \u6700\u5927\uff0830\u5206\u949f\u5185node_network_receive_bytes_total\u7684\u603b\u548c\uff09\uff09<\/p>\n<h2>\u7b26\u53f7\u8fd0\u7b97<\/h2>\n<p>\u4e0b\u5217\u8fd9\u4e9b\u8fd0\u7b97\u7b26\u4e5f\u53ef\u4ee5\u8fdb\u884c\u63cf\u8ff0\u3002<br \/>\nrate(node_network_transmit_bytes_total[10m]) + 1000 \/ 10 * 20 &#8211; 5 ^ 2 % 2<\/p>\n<h2>\u4ee5\u4e0b\u662f\u5bf9&#8221;\u6bd4\u8f03\u6f14\u7b97\u5b50&#8221;\u7684\u4e2d\u6587\u672c\u571f\u8bd1\u6cd5\uff1a<\/h2>\n<p>\u6bd4\u8f83\u8fd0\u7b97\u7b26<\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8fd0\u7b97\u7b26\uff1a\u76f8\u7b49\uff08==\uff09\u3001\u4e0d\u7b49\uff08!=\uff09\u3001\u5927\u4e8e\uff08&gt;\uff09\u3001\u5927\u4e8e\u7b49\u4e8e\uff08&gt;=\uff09\u3001\u5c0f\u4e8e\uff08&lt;\uff09\u3001\u5c0f\u4e8e\u7b49\u4e8e\uff08&lt;=\uff09\u3002<br \/>\nrate(node_network_receive_bytes_total[10m]) \u4e0d\u7b49\u4e8e 0<br \/>\nrate(node_network_receive_bytes_total[10m]) \u5c0f\u4e8e\u7b49\u4e8e 1000<\/p>\n<h2>\u5206\u7ec4<\/h2>\n<p>\u83b7\u53d6&#8221;localhost:9100&#8243;\u5b9e\u4f8b\u7684\u5206\u7ec4\u603b\u548c\u3002<br \/>\n\u6309\u5b9e\u4f8b\u5206\u7ec4\u8ba1\u7b97node_network_receive_bytes_total\u7684\u603b\u548c\u3002<br \/>\n\u6309\u5b9e\u4f8b\u5206\u7ec4\u8ba1\u7b97node_network_receive_bytes_total\u7684\u901f\u7387\u603b\u548c\uff08\u57285\u5206\u949f\u5185\uff09\u3002<\/p>\n<h2>\u8ba1\u91cf\u4eea\u8868<\/h2>\n<ul class=\"post-ul\">\u6c7a\u307e\u3063\u305f\u7bc4\u56f2\u306e\u5024\u304c\u4e0a\u4e0b\u3059\u308b\u30e1\u30e2\u30ea\u306a\u3069\u306b\u4f7f\u3046\u3002<\/ul>\n<p>max_over_time\u3001min_over_time\u3001avg_over_time\u51fd\u6570\u3002<br \/>\nmax_over_time(node_memory_MemFree_bytes[5m])<br \/>\n\u968f\u65f6\u95f4\u7684\u63a8\u79fb\uff0cnode_memory_MemFree_bytes[5m]\u7684\u6700\u5927\u503c\u3002<\/p>\n<h1>\u4ee5\u4e0b\u662f\u6211\u53c2\u8003\u7684\u7f51\u7ad9<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">https:\/\/qiita.com\/tiida26\/items\/d251fb42f7f2d8a68374<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">https:\/\/medium.com\/@valyala\/promql-tutorial-for-beginners-9ab455142085<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>VirtualBox 6 \u662f\u4e00\u4e2a\u9009\u9879\u3002 \u5ba2\u5e95\u64cd\u4f5c\u7cfb\u7edf\uff1aCentOS Linux\u53d1\u5e037.5.1804\u7248\uff08\u6838\u5fc3\u7248\uff09 [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-43226","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Grafana\u548cPrometheus - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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