{"id":98266,"date":"2024-10-21T01:10:17","date_gmt":"2024-10-20T17:10:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/98266\/"},"modified":"2024-10-21T01:10:18","modified_gmt":"2024-10-20T17:10:18","slug":"redis-%e8%b6%85%e9%99%90%e9%a0%90%e8%ad%a6%e8%ae%93%e5%85%a7%e5%ad%98%e4%b8%8d%e5%86%8d%e5%b4%a9%e6%bd%b0","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/98266\/","title":{"rendered":"Redis \u8d85\u9650\u9810\u8b66\u8b93\u5167\u5b58\u4e0d\u518d\u5d29\u6f70"},"content":{"rendered":"<h1 id=\"redis-%e8%b6%85%e9%99%90%e9%a0%90%e8%ad%a6%e8%ae%93%e5%85%a7%e5%ad%98%e4%b8%8d%e5%86%8d%e5%b4%a9%e6%bd%b0-HTuGPGpHvB\">Redis \u8d85\u9650\u9810\u8b66\u8b93\u5167\u5b58\u4e0d\u518d\u5d29\u6f70<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\uff0c\u5305\u62ec\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u6578\u64da\u8655\u7406\u3002\u7136\u800c\uff0c\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0cRedis \u7684\u5167\u5b58\u4f7f\u7528\u4e5f\u53ef\u80fd\u8fc5\u901f\u4e0a\u5347\uff0c\u5c0e\u81f4\u7cfb\u7d71\u5d29\u6f70\u6216\u6027\u80fd\u4e0b\u964d\u3002\u56e0\u6b64\uff0c\u5be6\u65bd\u8d85\u9650\u9810\u8b66\u6a5f\u5236\u5c0d\u65bc\u78ba\u4fdd Redis \u7684\u7a69\u5b9a\u904b\u884c\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<h2 id=\"redis-%e7%9a%84%e5%85%a7%e5%ad%98%e7%ae%a1%e7%90%86-HTuGPGpHvB\">Redis \u7684\u5167\u5b58\u7ba1\u7406<\/h2>\n<p>Redis \u4f7f\u7528\u5167\u5b58\u4f86\u5b58\u5132\u6578\u64da\uff0c\u9019\u4f7f\u5f97\u5176\u8b80\u53d6\u548c\u5beb\u5165\u901f\u5ea6\u975e\u5e38\u5feb\u3002\u7136\u800c\uff0c\u9019\u4e5f\u610f\u5473\u8457\u5982\u679c\u4e0d\u52a0\u4ee5\u7ba1\u7406\uff0c\u5167\u5b58\u7684\u4f7f\u7528\u53ef\u80fd\u6703\u8d85\u51fa\u9810\u671f\u3002Redis \u63d0\u4f9b\u4e86\u591a\u7a2e\u5167\u5b58\u7ba1\u7406\u7b56\u7565\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u6700\u5927\u5167\u5b58\u9650\u5236\uff1a<\/strong>\u53ef\u4ee5\u901a\u904e\u914d\u7f6e\u6587\u4ef6\u8a2d\u7f6e Redis \u7684\u6700\u5927\u5167\u5b58\u4f7f\u7528\u91cf\uff0c\u7576\u9054\u5230\u6b64\u9650\u5236\u6642\uff0cRedis \u5c07\u6839\u64da\u914d\u7f6e\u7684\u9a45\u9010\u7b56\u7565\u522a\u9664\u820a\u6578\u64da\u3002<\/li>\n<li><strong>\u9a45\u9010\u7b56\u7565\uff1a<\/strong>Redis \u652f\u6301\u591a\u7a2e\u9a45\u9010\u7b56\u7565\uff0c\u5982 LRU\uff08\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u3001LFU\uff08\u6700\u4e0d\u5e38\u4f7f\u7528\uff09\u548c TTL\uff08\u904e\u671f\u6642\u9593\uff09\u3002\u9019\u4e9b\u7b56\u7565\u5e6b\u52a9\u7ba1\u7406\u5167\u5b58\u4f7f\u7528\uff0c\u78ba\u4fdd\u7cfb\u7d71\u4e0d\u6703\u56e0\u70ba\u5167\u5b58\u4e0d\u8db3\u800c\u5d29\u6f70\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%b6%85%e9%99%90%e9%a0%90%e8%ad%a6%e7%9a%84%e9%87%8d%e8%a6%81%e6%80%a7-HTuGPGpHvB\">\u8d85\u9650\u9810\u8b66\u7684\u91cd\u8981\u6027<\/h2>\n<p>\u5373\u4f7f\u6709\u5167\u5b58\u7ba1\u7406\u7b56\u7565\uff0c\u4ecd\u7136\u53ef\u80fd\u51fa\u73fe\u610f\u5916\u60c5\u6cc1\uff0c\u4f8b\u5982\u6d41\u91cf\u6fc0\u589e\u6216\u6578\u64da\u91cf\u7570\u5e38\u589e\u52a0\u3002\u9019\u6642\uff0c\u8d85\u9650\u9810\u8b66\u6a5f\u5236\u5c31\u986f\u5f97\u5c24\u70ba\u91cd\u8981\u3002\u901a\u904e\u8a2d\u7f6e\u9810\u8b66\uff0c\u53ef\u4ee5\u5728\u5167\u5b58\u4f7f\u7528\u63a5\u8fd1\u4e0a\u9650\u6642\u53ca\u6642\u901a\u77e5\u7ba1\u7406\u54e1\uff0c\u5f9e\u800c\u63a1\u53d6\u76f8\u61c9\u63aa\u65bd\uff0c\u907f\u514d\u7cfb\u7d71\u5d29\u6f70\u3002<\/p>\n<h3 id=\"%e5%a6%82%e4%bd%95%e8%a8%ad%e7%bd%ae-redis-%e8%b6%85%e9%99%90%e9%a0%90%e8%ad%a6-HTuGPGpHvB\">\u5982\u4f55\u8a2d\u7f6e Redis \u8d85\u9650\u9810\u8b66<\/h3>\n<p>\u8a2d\u7f6e Redis \u8d85\u9650\u9810\u8b66\u53ef\u4ee5\u901a\u904e\u591a\u7a2e\u65b9\u5f0f\u5be6\u73fe\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u65b9\u6cd5\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u76e3\u63a7\u5de5\u5177\uff1a<\/strong>\u8a31\u591a\u76e3\u63a7\u5de5\u5177\uff08\u5982 Prometheus\u3001Grafana\uff09\u53ef\u4ee5\u8207 Redis \u96c6\u6210\uff0c\u5be6\u6642\u76e3\u63a7\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\u3002\u7576\u5167\u5b58\u4f7f\u7528\u9054\u5230\u8a2d\u5b9a\u7684\u95be\u503c\u6642\uff0c\u9019\u4e9b\u5de5\u5177\u53ef\u4ee5\u767c\u9001\u8b66\u5831\u3002<\/li>\n<li><strong>\u81ea\u5b9a\u7fa9\u8173\u672c\uff1a<\/strong>\u53ef\u4ee5\u7de8\u5beb\u81ea\u5b9a\u7fa9\u8173\u672c\uff0c\u5b9a\u671f\u6aa2\u67e5 Redis \u7684\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 Python \u8173\u672c\u793a\u4f8b\uff1a<\/li>\n<\/ul>\n<pre><code>import redis\nimport smtplib\nfrom email.mime.text import MIMEText\n\n# \u9023\u63a5\u5230 Redis\nr = redis.Redis(host='localhost', port=6379, db=0)\n\n# \u8a2d\u7f6e\u5167\u5b58\u95be\u503c\uff08\u4f8b\u5982 80%\uff09\nthreshold = 0.8\n\n# \u7372\u53d6\u7576\u524d\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\ninfo = r.info()\nused_memory = info['used_memory']\nmax_memory = info['maxmemory']\n\n# \u8a08\u7b97\u4f7f\u7528\u767e\u5206\u6bd4\nused_percentage = used_memory \/ max_memory\n\nif used_percentage &gt; threshold:\n    # \u767c\u9001\u8b66\u5831\n    msg = MIMEText(f'\u8b66\u5831\uff1aRedis \u5167\u5b58\u4f7f\u7528\u5df2\u9054\u5230 {used_percentage * 100:.2f}%')\n    msg['Subject'] = 'Redis \u5167\u5b58\u8d85\u9650\u8b66\u5831'\n    msg['From'] = 'alert@example.com'\n    msg['To'] = 'admin@example.com'\n\n    with smtplib.SMTP('localhost') as server:\n        server.send_message(msg)\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-HTuGPGpHvB\">\u7d50\u8ad6<\/h2>\n<p>Redis \u7684\u9ad8\u6548\u6027\u80fd\u4f7f\u5176\u6210\u70ba\u8a31\u591a\u61c9\u7528\u7684\u9996\u9078\uff0c\u4f46\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u52a0\uff0c\u5167\u5b58\u7ba1\u7406\u548c\u8d85\u9650\u9810\u8b66\u8b8a\u5f97\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u5408\u7406\u914d\u7f6e\u5167\u5b58\u9650\u5236\u548c\u9a45\u9010\u7b56\u7565\uff0c\u4ee5\u53ca\u5be6\u65bd\u6709\u6548\u7684\u9810\u8b66\u6a5f\u5236\uff0c\u53ef\u4ee5\u6709\u6548\u9632\u6b62\u5167\u5b58\u5d29\u6f70\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u904b\u884c\u3002<\/p>\n<p>\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u5167\u5b58\u7ba1\u7406\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u53ef\u4ee5\u63d0\u4f9b\u66f4\u597d\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002\u7121\u8ad6\u662f\u4f7f\u7528 Redis \u9084\u662f\u5176\u4ed6\u6578\u64da\u5eab\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u90fd\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Redis \u8d85\u9650\u9810\u8b66\u529f\u80fd\u6709\u6548\u9632\u6b62\u5167\u5b58\u5d29\u6f70\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u904b\u884c\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\u8207\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-98266","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98266","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=98266"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98266\/revisions"}],"predecessor-version":[{"id":98267,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98266\/revisions\/98267"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=98266"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=98266"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=98266"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}