{"id":1470,"date":"2021-04-02T03:58:10","date_gmt":"2021-04-02T03:58:10","guid":{"rendered":"https:\/\/www.ipcpu.com\/?p=1470"},"modified":"2021-08-19T04:19:10","modified_gmt":"2021-08-19T04:19:10","slug":"prometheus-node_exporter","status":"publish","type":"post","link":"https:\/\/c.ipcpu.com\/2021\/04\/prometheus-node_exporter\/","title":{"rendered":"prometheus\u548cnode_exporter\u4e2d\u7684\u78c1\u76d8\u76d1\u63a7"},"content":{"rendered":"
<\/div>\n

prometheus\u548cnode_exporter\u4e2d\u7684\u78c1\u76d8\u76d1\u63a7.md<\/p>\n

\u5bf9\u4e8e\u78c1\u76d8\u95ee\u9898\uff0c\u6211\u4eec\u4e3b\u8981\u5173\u6ce8\u4ee5\u4e0b\u51e0\u4e2a\u6307\u6807\uff1a<\/p>\n

\n

\u78c1\u76d8\u7a7a\u95f4\u4f7f\u7528\u7387\u3001\u78c1\u76d8inode\u4f7f\u7528\u7387\uff08df -h\u548cdf -i\u547d\u4ee4\uff09
\n \u78c1\u76d8\u8bfb\u5199\u6b21\u6570IOPS (iostat\u4e2d\u7684r\/s\u3001w\/s)
\n \u78c1\u76d8\u8bfb\u5199\u5e26\u5bbd (iostat\u4e2d\u7684rkB\/s\u3001wkB\/s)
\n \u78c1\u76d8IO\u5229\u7528\u7387%util (iostat\u4e2d\u7684%util)
\n \u78c1\u76d8\u961f\u5217\u6570 (iostat\u4e2d\u7684avgqu-sz)
\n \u78c1\u76d8\u8bfb\u5199\u7684\u5ef6\u8fdf\u65f6\u95f4 (iostat\u4e2d\u7684r_await\u3001w_await)<\/p>\n<\/blockquote>\n


\n\u8fd9\u4e9b\u6307\u6807\u90fd\u53ef\u4ee5\u5728node_exporter\u4e2d\u627e\u5230\u5bf9\u4e8e\u7684\u7ebf\u7d22\u3002<\/p>\n

1. \u78c1\u76d8\u7a7a\u95f4\u4f7f\u7528\u7387\u548c\u78c1\u76d8inode\u4f7f\u7528\u7387<\/h4>\n

<\/p>\n

\n
\u78c1\u76d8\u7a7a\u95f4\u4f7f\u7528\u7387\r\n100 - ((node_filesystem_avail_bytes{instance=~\"$hostname\",fstype=~\"ext4|xfs\"} * 100) \/ node_filesystem_size_bytes{instance=~\"$hostname\",fstype=~\"ext4|xfs\"})\r\n\u78c1\u76d8inode\u4f7f\u7528\u7387\r\n100 -node_filesystem_files_free{instance=~\"$hostname\",fstype=~\"ext4|xfs\"}\/node_filesystem_files{instance=~\"$hostname\",fstype=~\"ext4|xfs\"} * 100<\/code><\/pre>\n<\/div>\n
2. \u78c1\u76d8IOPS<\/h4>\n
<\/p>\n
\n
\u8bfbIOPS\r\nrate(node_disk_reads_completed_total{instance=~\"$hostname\",device=~\"[a-z]*[a-z]\"}[5m])\r\n\u5199IOPS\r\nrate(node_disk_writes_completed_total{instance=~\"$hostname\",device=~\"[a-z]*[a-z]\"}[5m])<\/code><\/pre>\n<\/div>\n
3. \u78c1\u76d8IO\u5229\u7528\u7387%util<\/h4>\n
<\/p>\n
\n
\u78c1\u76d8IO\u5229\u7528\u7387(iostat\u4e2d\u7684%util,\u53d6\u503c\u8303\u56f4[0-1])\r\nrate(node_disk_io_time_seconds_total{instance=~\"$hostname\"}[5m]) <\/code><\/pre>\n<\/div>\n
util%\u5230\u8fbe100%\u5e76\u4e0d\u4e00\u5b9a\u4f1a\u5b58\u5728\u78c1\u76d8\u74f6\u9888\uff0c\u56e0\u4e3a\u78c1\u76d8\u8bbe\u5907\u53ef\u4ee5\u5e76\u53d1\uff08fio\u4e2d\u7684\u591a\u961f\u5217\uff09\uff0c\u5224\u65ad\u78c1\u76d8\u74f6\u9888\u8981\u6839\u636eutil%\u3001IO\u961f\u5217\u6570\u3001\u8bfb\u5199\u5ef6\u8fdf\u7684\u5386\u53f2\u8d8b\u52bf\u6765\u5224\u65ad\u3002\u6ca1\u6709\u529e\u6cd5\uff0c\u56e0\u4e3a\u78c1\u76d8\u5382\u5546\u4e5f\u6ca1\u7ed9\u51fa\u76f8\u5173\u53c2\u8003\u3002<\/p>\n
4. \u78c1\u76d8\u8bbe\u5907\u5e73\u5747IO\u961f\u5217\u6570<\/h4>\n
<\/p>\n
\n
rate(node_disk_io_time_weighted_seconds_total{instance=~\"$hostname\"}[5m])<\/code><\/pre>\n<\/div>\n
5. \u78c1\u76d8\u8bbe\u5907\u8bfb\u5199\u5ef6\u8fdf<\/h4>\n
<\/p>\n
\n
\u8bfb\u5ef6\u8fdf(ms)\r\nrate(node_disk_read_time_seconds_total{instance=~\"$hostname\"}[5m]) \/ rate(node_disk_reads_completed_total{instance=~\"$hostname\"}[5m]) * 1000\r\n\u5199\u5ef6\u8fdf(ms)\r\nrate(node_disk_write_time_seconds_total{instance=~\"$hostname\"}[5m]) \/ rate(node_disk_writes_completed_total{instance=~\"$hostname\"}[5m]) * 1000<\/code><\/pre>\n<\/div>\n
\u8fd9\u4e2a\u503c\u7684\u5355\u4f4d\u662f\u79d2\uff0c \u4e0d\u592a\u597d\u770b\uff0c\u4e58\u4ee51000\u53ef\u4ee5\u6362\u7b97\u6210\u6beb\u79d2ms\u3002\u8fd9\u4e2a\u503c\u4e0e\u8bbe\u5907\u6709\u5173\uff0c\u672c\u5730\u76d8\u3001\u7f51\u7edc\u76d8\u3001SSD\u78c1\u76d8\u7684\u8bfb\u5199\u5ef6\u8fdf\u7ea7\u522b\u4e0d\u4e00\u3002<\/p>\n
\u53c2\u8003\u8d44\u6599<\/h2>\n
https:\/\/www.robustperception.io\/mapping-iostat-to-the-node-exporters-node_disk_-metrics<\/a> 
\nhttps:\/\/brian-candler.medium.com\/interpreting-prometheus-metrics-for-linux-disk-i-o-utilization-4db53dfedcfc<\/a> 
\nhttps:\/\/devconnected.com\/monitoring-disk-i-o-on-linux-with-the-node-exporter\/<\/a><\/p>\n
\u8f6c\u8f7d\u8bf7\u6ce8\u660e\uff1aIPCPU-\u7f51\u7edc\u4e4b\u8def<\/a> » prometheus\u548cnode_exporter\u4e2d\u7684\u78c1\u76d8\u76d1\u63a7<\/a><\/p>","protected":false},"excerpt":{"rendered":"
prometheus\u548cnode_exporter\u4e2d\u7684\u78c1\u76d8\u76d1\u63a7.md \u5bf9\u4e8e\u78c1\u76d8\u95ee\u9898\uff0c\u6211\u4eec\u4e3b\u8981\u5173\u6ce8\u4ee5\u4e0b\u51e0\u4e2a\u6307\u6807\uff1a \u78c1\u76d8\u7a7a\u95f4\u4f7f\u7528\u7387\u3001\u78c1\u76d8inode\u4f7f\u7528\u7387\uff08df -h\u548cdf -i\u547d\u4ee4\uff09 \u78c1\u76d8\u8bfb\u5199\u6b21\u6570IOPS (iostat\u4e2d\u7684r\/s\u3001w\/s) \u78c1\u76d8\u8bfb\u5199\u5e26\u5bbd (iostat\u4e2d\u7684rkB\/s\u3001wkB\/s) \u78c1\u76d8IO\u5229\u7528\u7387%util (iostat\u4e2d\u7684%util) \u78c1\u76d8\u961f\u5217\u6570 (iostat\u4e2d\u7684avgqu-sz) \u78c1\u76d8\u8bfb\u5199\u7684\u5ef6\u8fdf\u65f6\u95f4 (iostat\u4e2d\u7684r_await\u3001w_await) \u8fd9\u4e9b\u6307\u6807\u90fd\u53ef\u4ee5\u5728node_exporter\u4e2d\u627e\u5230\u5bf9\u4e8e\u7684\u7ebf\u7d22\u3002 1. \u78c1\u76d8\u7a7a\u95f4\u4f7f\u7528\u7387\u548c\u78c1\u76d8inode\u4f7f\u7528\u7387 \u78c1\u76d8\u7a7a\u95f4\u4f7f\u7528\u7387 100 – ((node_filesystem_avail_bytes{instance=~”$hostname”,fstype=~”ext4|xfs”} * 100) \/ node_filesystem_size_bytes{instance=~”$hostname”,fstype=~”ext4|xfs”}) \u78c1\u76d8inode\u4f7f\u7528\u7387 100 -node_filesystem_files_free{instance=~”$hostname”,fstype=~”ext4|xfs”}\/node_filesystem_files{instance=~”$hostname”,fstype=~”ext4|xfs”} * 100 2. \u78c1\u76d8IOPS \u8bfbIOPS rate(node_disk_reads_completed_total{instance=~”$hostname”,device=~”[a-z]*[a-z]”}[5m]) \u5199IOPS rate(node_disk_writes_completed_total{instance=~”$hostname”,device=~”[a-z]*[a-z]”}[5m]) 3. \u78c1\u76d8IO\u5229\u7528\u7387%util \u78c1\u76d8IO\u5229\u7528\u7387(iostat\u4e2d\u7684%util,\u53d6\u503c\u8303\u56f4[0-1]) rate(node_disk_io_time_seconds_total{instance=~”$hostname”}[5m]) util%\u5230\u8fbe100%\u5e76\u4e0d\u4e00\u5b9a\u4f1a\u5b58\u5728\u78c1\u76d8\u74f6\u9888\uff0c\u56e0\u4e3a\u78c1\u76d8\u8bbe\u5907\u53ef\u4ee5\u5e76\u53d1\uff08fio\u4e2d\u7684\u591a\u961f\u5217\uff09\uff0c\u5224\u65ad\u78c1\u76d8\u74f6\u9888\u8981\u6839\u636eutil%\u3001IO\u961f\u5217\u6570\u3001\u8bfb\u5199\u5ef6\u8fdf\u7684\u5386\u53f2\u8d8b\u52bf\u6765\u5224\u65ad\u3002\u6ca1\u6709\u529e\u6cd5\uff0c\u56e0\u4e3a\u78c1\u76d8\u5382\u5546\u4e5f\u6ca1\u7ed9\u51fa\u76f8\u5173\u53c2\u8003\u3002 4. \u78c1\u76d8\u8bbe\u5907\u5e73\u5747IO\u961f\u5217\u6570 rate(node_disk_io_time_weighted_seconds_total{instance=~”$hostname”}[5m]) 5. \u78c1\u76d8\u8bbe\u5907\u8bfb\u5199\u5ef6\u8fdf \u8bfb\u5ef6\u8fdf(ms) rate(node_disk_read_time_seconds_total{instance=~”$hostname”}[5m]) \/ rate(node_disk_reads_completed_total{instance=~”$hostname”}[5m]) * 1000 \u5199\u5ef6\u8fdf(ms) rate(node_disk_write_time_seconds_total{instance=~”$hostname”}[5m]) […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[13,2],"tags":[17,190,57,32],"_links":{"self":[{"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/posts\/1470"}],"collection":[{"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/comments?post=1470"}],"version-history":[{"count":4,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/posts\/1470\/revisions"}],"predecessor-version":[{"id":1505,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/posts\/1470\/revisions\/1505"}],"wp:attachment":[{"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/media?parent=1470"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/categories?post=1470"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/tags?post=1470"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}