{"id":1106,"date":"2021-07-30T13:46:16","date_gmt":"2021-07-30T05:46:16","guid":{"rendered":"https:\/\/egonlin.com\/?p=1106"},"modified":"2021-07-30T16:07:52","modified_gmt":"2021-07-30T08:07:52","slug":"promql%e5%9f%ba%e6%9c%ac%e4%bd%bf%e7%94%a8","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=1106","title":{"rendered":"PromQL\u57fa\u672c\u4f7f\u7528"},"content":{"rendered":"

PromQL\u57fa\u672c\u4f7f\u7528<\/h1>\n
\n

PromQL (Prometheus Query Language) \u662f Prometheus \u81ea\u5df1\u5f00\u53d1\u7684\u6570\u636e\u67e5\u8be2 DSL \u8bed\u8a00\uff0c\u8bed\u8a00\u8868\u73b0\u529b\u975e\u5e38\u4e30\u5bcc\uff0c\u5185\u7f6e\u51fd\u6570\u5f88\u591a\uff0c\u5728\u65e5\u5e38\u6570\u636e\u53ef\u89c6\u5316\u4ee5\u53carule \u544a\u8b66\u4e2d\u90fd\u4f1a\u4f7f\u7528\u5230\u5b83\u3002<\/p>\n<\/blockquote>\n

\u5728\u9875\u9762 http:\/\/localhost:9090\/graph<\/code> \u4e2d\uff0c\u8f93\u5165\u4e0b\u9762\u7684\u67e5\u8be2\u8bed\u53e5\uff0c\u67e5\u770b\u7ed3\u679c\uff0c\u4f8b\u5982\uff1a<\/p>\n

\"\"<\/div><\/p>\n

\u4e00\u3001\u67e5\u8be2\u7ed3\u679c\u7c7b\u578b<\/h2>\n
PromQL \u67e5\u8be2\u7ed3\u679c\u4e3b\u8981\u6709 3 \u79cd\u7c7b\u578b\uff1a\n    1\u3001\u77ac\u65f6\u6570\u636e(Instant vector): \u5305\u542b\u4e00\u7ec4\u65f6\u5e8f\uff0c\u6bcf\u4e2a\u65f6\u5e8f\u53ea\u6709\u4e00\u4e2a\u70b9\n\n    2\u3001\u533a\u95f4\u6570\u636e(Range vector): \u5305\u542b\u4e00\u7ec4\u65f6\u5e8f\uff0c\u6bcf\u4e2a\u65f6\u5e8f\u6709\u591a\u4e2a\u70b9\n\n    3\u3001\u7eaf\u91cf\u6570\u636e(Scalar): \u7eaf\u91cf\u53ea\u6709\u4e00\u4e2a\u6570\u5b57\uff0c\u6ca1\u6709\u65f6\u5e8f<\/code><\/pre>\n
1\u3001\u77ac\u65f6\u6570\u636e (Instant vector)<\/h3>\n
kubelet_http_requests_total<\/code><\/pre>\n
\"\"<\/div><\/p>\n
2\u3001\u533a\u95f4\u6570\u636e (Range vector)<\/h3>\n
[5m] : 5\u5206\u949f\u4ee5\u5185\u7684\u6570\u636e\n    s\uff1aseconds\n    m\uff1aminutes\n    h\uff1ahours\n    d\uff1adays\n    w\uff1aweeks\n    y\uff1ayears\nOffset \uff1a\u67e5\u770b\u591a\u5c11\u5206\u949f\u4e4b\u524d\u7684\u6570\u636e<\/code><\/pre>\n
1.\u67e5\u8be2\u4e94\u5206\u949f\u524d\u5230\u76ee\u524d\u7684\u6570\u636e<\/h4>\n
kubelet_http_requests_total[5m]<\/code><\/pre>\n
\"\"<\/div><\/p>\n
2.\u67e5\u8be230\u5206\u949f\u4e4b\u524d\u7684\u6570\u636e<\/h4>\n
kubelet_http_requests_total offset 30m<\/code><\/pre>\n
\"\"<\/div><\/p>\n
3.\u67e5\u8be2\u524d30\u5230\u524d25\u5206\u949f\u7684\u6570\u636e<\/h4>\n
kubelet_http_requests_total [5m] offset 30m<\/code><\/pre>\n
\"\"<\/div><\/p>\n
3\u3001\u7eaf\u91cf\u6570\u636e(Scalar)<\/h3>\n
count(kubelet_http_requests_total)\n\n#count \u7edf\u8ba1\u76d1\u63a7\u9879\u7684job<\/code><\/pre>\n
\"\"<\/div><\/p>\n
\u4e8c\u3001\u6570\u636e\u7c7b\u578b<\/h2>\n
prometheus\u7684\u5e95\u5c42\u6570\u636e\u6a21\u578b\u6709\u56db\u79cd\u3002\n\nCounter\uff1a---->\u53ea\u589e\u4e0d\u51cf\u7684\u8ba1\u6570\u5668\ncpu\u8fd0\u884c\u65f6\u95f4\nhttp\u8bf7\u6c42\u6570\n\ngauge\uff1a  ---->\u53ef\u618e\u53ef\u51cf\u7684\n\u7cfb\u7edf\u8d1f\u8f7d\u60c5\u51b5\n\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\n\nHistogram & Summary  --->\u7528\u4e8e\u7edf\u8ba1\u5206\u6790\u6837\u672c\u7684\u5206\u5e03\u60c5\u51b5\nhttp\u5e73\u5747\u54cd\u5e94\u65f6\u95f4<\/code><\/pre>\n
\u4e09\u3001\u67e5\u8be2\u6761\u4ef6<\/h2>\n
\n
Prometheus \u5b58\u50a8\u7684\u662f\u65f6\u5e8f\u6570\u636e\uff0c\u800c\u5b83\u7684\u65f6\u5e8f\u662f\u7531\u540d\u5b57\u548c\u4e00\u7ec4\u6807\u7b7e\u6784\u6210\u7684\uff0c\u5176\u5b9e\u540d\u5b57\u4e5f\u53ef\u4ee5\u5199\u51fa\u6807\u7b7e\u7684\u5f62\u5f0f\u3002<\/p>\n<\/blockquote>\n
1\u3001\u6807\u7b7e\u7b49\u503c\u67e5\u8be2<\/h3>\n
container_spec_cpu_quota{container="config-reloader"}\n# \u6216\ncontainer_spec_cpu_quota{container=~"config-reloader"}<\/code><\/pre>\n
\"\"<\/div>
\n
\"\"<\/div><\/p>\n
2\u3001\u6807\u7b7e\u4e0d\u7b49\u503c\u67e5\u8be2<\/h3>\n
container_spec_cpu_quota{container!="config-reloader"}<\/code><\/pre>\n
\"\"<\/div><\/p>\n
3\u3001\u67e5\u8be2\u6761\u4ef6\u652f\u6301\u6b63\u5219\u5339\u914d<\/h3>\n
1.\u6b63\u5219\u5339\u914d<\/h4>\n
<\/p>
<\/div>
\u67e5\u770b\u66f4\u591a<\/h2>
\u8054\u7cfb\u7ba1\u7406\u5458\u5fae\u4fe1tutu19192010\uff0c\u6ce8\u518c\u8d26\u53f7<\/p>\n<\/div>
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PromQL\u57fa\u672c\u4f7f\u7528 PromQL (Prometheus Query Language) \u662f Prometh […]<\/p>\n","protected":false},"author":3,"featured_media":1107,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[143],"tags":[21,133,134,135,147,22,132,118,20],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/1106"}],"collection":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1106"}],"version-history":[{"count":0,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/1106\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/media\/1107"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1106"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1106"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1106"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}