{"id":154341,"date":"2024-11-02T15:00:23","date_gmt":"2024-11-02T07:00:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/154341\/"},"modified":"2024-11-02T15:00:25","modified_gmt":"2024-11-02T07:00:25","slug":"%e5%ae%9a%e6%9c%9f%e6%b8%85%e7%90%86redis%e7%b7%a9%e5%ad%98%e5%a4%9a%e7%b7%9a%e7%a8%8b%e5%84%aa%e5%8c%96%e9%81%8e%e6%9c%9f%e7%ad%96%e7%95%a5%ef%bc%88redis%e9%81%8e%e6%9c%9f-%e5%a4%9a%e7%b7%9a%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/154341\/","title":{"rendered":"\u5b9a\u671f\u6e05\u7406Redis\u7de9\u5b58\u591a\u7dda\u7a0b\u512a\u5316\u904e\u671f\u7b56\u7565\uff08redis\u904e\u671f \u591a\u7dda\u7a0b\uff09"},"content":{"rendered":"<h1 id=\"%e5%ae%9a%e6%9c%9f%e6%b8%85%e7%90%86redis%e7%b7%a9%e5%ad%98%e5%a4%9a%e7%b7%9a%e7%a8%8b%e5%84%aa%e5%8c%96%e9%81%8e%e6%9c%9f%e7%ad%96%e7%95%a5-vetxRQTbJF\">\u5b9a\u671f\u6e05\u7406Redis\u7de9\u5b58\u591a\u7dda\u7a0b\u512a\u5316\u904e\u671f\u7b56\u7565<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u61c9\u7528\u7a0b\u5f0f\u958b\u767c\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u7de9\u5b58\u89e3\u6c7a\u65b9\u6848\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u548c\u97ff\u61c9\u901f\u5ea6\u3002\u7136\u800c\uff0c\u96a8\u8457\u6642\u9593\u7684\u63a8\u79fb\uff0cRedis\u4e2d\u7684\u7de9\u5b58\u6578\u64da\u53ef\u80fd\u6703\u8b8a\u5f97\u904e\u671f\uff0c\u9019\u4e0d\u50c5\u4f54\u7528\u5167\u5b58\u8cc7\u6e90\uff0c\u9084\u53ef\u80fd\u5f71\u97ff\u7cfb\u7d71\u7684\u6574\u9ad4\u6027\u80fd\u3002\u56e0\u6b64\uff0c\u5b9a\u671f\u6e05\u7406Redis\u7de9\u5b58\u4e26\u63a1\u7528\u591a\u7dda\u7a0b\u512a\u5316\u904e\u671f\u7b56\u7565\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e9%81%8e%e6%9c%9f%e6%a9%9f%e5%88%b6-vetxRQTbJF\">Redis\u7684\u904e\u671f\u6a5f\u5236<\/h2>\n<p>Redis\u63d0\u4f9b\u4e86\u5169\u7a2e\u4e3b\u8981\u7684\u904e\u671f\u7b56\u7565\u4f86\u7ba1\u7406\u7de9\u5b58\u6578\u64da\uff1a\u4e3b\u52d5\u904e\u671f\u548c\u88ab\u52d5\u904e\u671f\u3002<\/p>\n<ul>\n<li><strong>\u4e3b\u52d5\u904e\u671f\uff1a<\/strong>Redis\u6703\u5b9a\u671f\u6aa2\u67e5\u7de9\u5b58\u4e2d\u7684\u9375\uff0c\u4e26\u522a\u9664\u90a3\u4e9b\u5df2\u7d93\u904e\u671f\u7684\u9375\u3002\u9019\u500b\u904e\u7a0b\u662f\u901a\u904e\u4e00\u500b\u5b9a\u6642\u4efb\u52d9\u4f86\u5be6\u73fe\u7684\uff0c\u901a\u5e38\u6bcf\u9694100\u6beb\u79d2\u9032\u884c\u4e00\u6b21\u6aa2\u67e5\u3002<\/li>\n<li><strong>\u88ab\u52d5\u904e\u671f\uff1a<\/strong>\u7576\u7528\u6236\u5617\u8a66\u8a2a\u554f\u4e00\u500b\u5df2\u7d93\u904e\u671f\u7684\u9375\u6642\uff0cRedis\u6703\u7acb\u5373\u522a\u9664\u8a72\u9375\u3002\u9019\u7a2e\u65b9\u5f0f\u96d6\u7136\u80fd\u5920\u6e1b\u5c11\u4e3b\u52d5\u6aa2\u67e5\u7684\u958b\u92b7\uff0c\u4f46\u5728\u9ad8\u4e26\u767c\u7684\u60c5\u6cc1\u4e0b\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a4%9a%e7%b7%9a%e7%a8%8b%e5%84%aa%e5%8c%96%e9%81%8e%e6%9c%9f%e7%ad%96%e7%95%a5-vetxRQTbJF\">\u591a\u7dda\u7a0b\u512a\u5316\u904e\u671f\u7b56\u7565<\/h2>\n<p>\u5728\u9ad8\u4e26\u767c\u7684\u74b0\u5883\u4e2d\uff0c\u55ae\u7dda\u7a0b\u7684\u904e\u671f\u6aa2\u67e5\u53ef\u80fd\u6703\u6210\u70ba\u6027\u80fd\u74f6\u9838\u3002\u70ba\u4e86\u89e3\u6c7a\u9019\u500b\u554f\u984c\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u591a\u7dda\u7a0b\u4f86\u512a\u5316\u904e\u671f\u7b56\u7565\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5be6\u73fe\u591a\u7dda\u7a0b\u512a\u5316\u7684\u5efa\u8b70\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e5%a4%9a%e5%80%8b%e5%b7%a5%e4%bd%9c%e7%b7%9a%e7%a8%8b-vetxRQTbJF\">1. \u4f7f\u7528\u591a\u500b\u5de5\u4f5c\u7dda\u7a0b<\/h3>\n<p>\u53ef\u4ee5\u5275\u5efa\u591a\u500b\u5de5\u4f5c\u7dda\u7a0b\uff0c\u4e26\u5c07\u904e\u671f\u6aa2\u67e5\u7684\u4efb\u52d9\u5206\u914d\u7d66\u9019\u4e9b\u7dda\u7a0b\u3002\u9019\u6a23\u53ef\u4ee5\u63d0\u9ad8\u6aa2\u67e5\u7684\u6548\u7387\uff0c\u6e1b\u5c11\u55ae\u500b\u7dda\u7a0b\u7684\u8ca0\u64d4\u3002<\/p>\n<pre><code>\nimport threading\nimport time\n\ndef expire_check(redis_client):\n    while True:\n        # \u6aa2\u67e5\u904e\u671f\u9375\n        expired_keys = redis_client.keys('*')\n        for key in expired_keys:\n            if redis_client.ttl(key) &lt; 0:\n                redis_client.delete(key)\n        time.sleep(0.1)\n\n# \u5275\u5efa\u591a\u500b\u7dda\u7a0b\nthreads = []\nfor i in range(5):\n    t = threading.Thread(target=expire_check, args=(redis_client,))\n    threads.append(t)\n    t.start()\n<\/code><\/pre>\n<h3 id=\"2-%e5%88%86%e7%89%87%e9%81%8e%e6%9c%9f%e6%aa%a2%e6%9f%a5-vetxRQTbJF\">2. \u5206\u7247\u904e\u671f\u6aa2\u67e5<\/h3>\n<p>\u5c07\u6578\u64da\u5206\u7247\uff0c\u8b93\u6bcf\u500b\u7dda\u7a0b\u53ea\u8ca0\u8cac\u6aa2\u67e5\u7279\u5b9a\u7bc4\u570d\u7684\u9375\u3002\u9019\u6a23\u53ef\u4ee5\u9032\u4e00\u6b65\u6e1b\u5c11\u9396\u7af6\u722d\uff0c\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n<pre><code>\ndef shard_expire_check(redis_client, start, end):\n    for key in redis_client.keys()[start:end]:\n        if redis_client.ttl(key) &lt; 0:\n            redis_client.delete(key)\n\n# \u5206\u7247\u7bc4\u570d\nshard_size = len(redis_client.keys()) \/\/ 5\nthreads = []\nfor i in range(5):\n    t = threading.Thread(target=shard_expire_check, args=(redis_client, i * shard_size, (i + 1) * shard_size))\n    threads.append(t)\n    t.start()\n<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e8%a8%88%e6%99%82%e5%99%a8-vetxRQTbJF\">3. \u4f7f\u7528\u8a08\u6642\u5668<\/h3>\n<p>\u53ef\u4ee5\u4f7f\u7528\u8a08\u6642\u5668\u4f86\u5b9a\u671f\u89f8\u767c\u904e\u671f\u6aa2\u67e5\uff0c\u800c\u4e0d\u662f\u4f9d\u8cf4\u65bc\u4e3b\u52d5\u6aa2\u67e5\u7684\u65b9\u5f0f\u3002\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11Redis\u7684\u8ca0\u64d4\uff0c\u4e26\u63d0\u9ad8\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n<pre><code>\nimport sched\n\nscheduler = sched.scheduler(time.time, time.sleep)\n\ndef scheduled_expire_check(redis_client):\n    expire_check(redis_client)\n    scheduler.enter(1, 1, scheduled_expire_check, (redis_client,))\n\nscheduler.enter(1, 1, scheduled_expire_check, (redis_client,))\nscheduler.run()\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-vetxRQTbJF\">\u7d50\u8ad6<\/h2>\n<p>\u5b9a\u671f\u6e05\u7406Redis\u7de9\u5b58\u4e26\u63a1\u7528\u591a\u7dda\u7a0b\u512a\u5316\u904e\u671f\u7b56\u7565\u662f\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u7684\u91cd\u8981\u63aa\u65bd\u3002\u901a\u904e\u5408\u7406\u7684\u8a2d\u8a08\u548c\u5be6\u73fe\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u7de9\u5b58\u6578\u64da\uff0c\u6e1b\u5c11\u5167\u5b58\u4f54\u7528\uff0c\u4e26\u63d0\u9ad8\u61c9\u7528\u7a0b\u5f0f\u7684\u97ff\u61c9\u901f\u5ea6\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u7cfb\u7d71\u5728\u9ad8\u8ca0\u8f09\u4e0b\u4f9d\u7136\u7a69\u5b9a\u904b\u884c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5b9a\u671f\u6e05\u7406Redis\u7de9\u5b58\u7684\u591a\u7dda\u7a0b\u512a\u5316\u904e\u671f\u7b56\u7565\uff0c\u63d0\u9ad8\u6027\u80fd\u8207\u6548\u7387\uff0c\u78ba\u4fdd\u6578\u64da\u6301\u4e45\u6027\u8207\u7cfb\u7d71\u7a69\u5b9a\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-154341","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/154341","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=154341"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/154341\/revisions"}],"predecessor-version":[{"id":154342,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/154341\/revisions\/154342"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=154341"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=154341"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=154341"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}