[vc_row el_class=”blog-detail-section”][vc_column][vc_column_text]
\n[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n
\u670d\u52a1\u5668\u8fd0\u884c\u5835\u585e<\/a>\u4f1a\u4e25\u91cd\u5f71\u54cd\u7cfb\u7edf\u6027\u80fd\uff0c\u5bfc\u81f4\u7528\u6237\u4e0d\u6ee1\u548c\u6f5c\u5728\u7684\u6536\u5165\u635f\u5931\u3002\u5728\u9ad8\u901f\u7684\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528<\/a>\u73af\u5883\u4e2d\uff0c\u7406\u89e3\u548c\u89e3\u51b3\u8fd9\u4e9b\u6027\u80fd\u95ee\u9898\u5bf9\u4e8e\u7ef4\u6301\u6700\u4f73\u670d\u52a1\u5668\u8fd0\u8425\u81f3\u5173\u91cd\u8981\u3002\u73b0\u4ee3\u670d\u52a1\u5668\u57fa\u7840\u8bbe\u65bd\u9762\u4e34\u7740\u6765\u81ea\u5bb9\u5668\u5316\u5e94\u7528\u3001\u5fae\u670d\u52a1\u548c\u9ad8\u5e76\u53d1\u5de5\u4f5c\u8d1f\u8f7d\u7684\u4e0d\u65ad\u589e\u957f\u7684\u9700\u6c42\uff0c\u4f7f\u5f97\u5835\u585e\u7ba1\u7406\u53d8\u5f97\u6bd4\u4ee5\u5f80\u4efb\u4f55\u65f6\u5019\u90fd\u66f4\u52a0\u91cd\u8981\u3002<\/p>\n \u6027\u80fd\u4e0b\u964d\u901a\u5e38\u901a\u8fc7\u5404\u79cd\u75c7\u72b6\u8868\u73b0\u51fa\u6765\u3002\u7cfb\u7edf\u7ba1\u7406\u5458\u5e94\u8be5\u6ce8\u610f\u54cd\u5e94\u65f6\u95f4\u589e\u52a0\u3001CPU\u5cf0\u503c\u3001\u5185\u5b58\u8017\u5c3d\u548cI\/O\u7b49\u5f85\u65f6\u95f4\u3002\u53ca\u65e9\u53d1\u73b0\u5bf9\u4e8e\u9632\u6b62\u7ea7\u8054\u6545\u969c\u81f3\u5173\u91cd\u8981\u3002\u4ee5\u4e0b\u662f\u7cfb\u7edf\u5206\u6790\u7684\u7efc\u5408\u547d\u4ee4\u96c6\uff1a<\/p>\n \u8d44\u6e90\u4e89\u7528\u901a\u5e38\u6e90\u4e8e\u591a\u4e2a\u65b9\u9762\uff1a<\/p>\n – \u672a\u4f18\u5316\u4ee3\u7801\u6216\u6076\u610f\u8fdb\u7a0b\u5bfc\u81f4\u7684\u8fc7\u5ea6CPU\u4f7f\u7528<\/p>\n – \u957f\u671f\u8fd0\u884c\u5e94\u7528\u7a0b\u5e8f\u7684\u5185\u5b58\u6cc4\u6f0f<\/p>\n – \u5927\u91cf\u6570\u636e\u5e93\u64cd\u4f5c\u5bfc\u81f4\u7684\u78c1\u76d8I\/O\u9650\u5236<\/p>\n – \u5e26\u5bbd\u4e0d\u8db3\u6216DDoS\u653b\u51fb\u5bfc\u81f4\u7684\u7f51\u7edc\u62e5\u585e<\/p>\n – \u6570\u636e\u5e93\u67e5\u8be2\u6548\u7387\u4f4e\u4e0b\u548c\u7d22\u5f15\u7b56\u7565\u4e0d\u5f53<\/p>\n – \u8d44\u6e90\u5bc6\u96c6\u578b\u540e\u53f0\u8fdb\u7a0b<\/p>\n – \u5de5\u4f5c\u8d1f\u8f7d\u6240\u9700\u670d\u52a1\u5668\u8d44\u6e90\u4e0d\u8db3<\/p>\n \u4f7f\u7528\u884c\u4e1a\u6807\u51c6\u5de5\u5177\u5b9e\u65bd\u5f3a\u5927\u7684\u76d1\u63a7\u89e3\u51b3\u65b9\u6848\u3002\u4ee5\u4e0b\u662f\u5e26\u6709\u8b66\u62a5\u529f\u80fd\u7684\u5b8c\u6574Prometheus\u914d\u7f6e\uff1a<\/p>\n \u5b9e\u65bd\u8fd9\u4e9b\u7ecf\u8fc7\u9a8c\u8bc1\u7684\u4f18\u5316\u6280\u672f\uff1a<\/p>\n 1. \u4f7f\u7528\u81ea\u52a8\u5316\u811a\u672c\u6e05\u7406\u4e34\u65f6\u6587\u4ef6\u548c\u65e5\u5fd7<\/p>\n 2. \u901a\u8fc7\u9002\u5f53\u7684\u7d22\u5f15\u548c\u67e5\u8be2\u89c4\u5212\u4f18\u5316\u6570\u636e\u5e93\u67e5\u8be2<\/p>\n 3. \u5b9e\u65bd\u591a\u7ea7\u7f13\u5b58\u673a\u5236<\/p>\n 4. \u914d\u7f6e\u8d1f\u8f7d\u5747\u8861\u4ee5\u5b9e\u73b0\u9ad8\u53ef\u7528\u6027<\/p>\n 5. \u5229\u7528CDN\u670d\u52a1\u8fdb\u884c\u9759\u6001\u5185\u5bb9\u5206\u53d1<\/p>\n 6. \u5b9e\u65bd\u9002\u5f53\u7684\u8fde\u63a5\u6c60<\/p>\n 7. \u542f\u7528\u7f51\u7edc\u6d41\u91cf\u538b\u7f29<\/p>\n 8. \u4f18\u5316\u5e94\u7528\u7a0b\u5e8f\u4ee3\u7801\u4ee5\u66f4\u597d\u5730\u5229\u7528\u8d44\u6e90<\/p>\n \u4ee5\u4e0b\u662f\u5177\u6709\u91cd\u8bd5\u673a\u5236\u7684\u590d\u6742\u8fde\u63a5\u6c60\u5b9e\u73b0\uff1a<\/p>\n \u4f5c\u4e3a\u4e9a\u6d32\u4e92\u8054\u7f51\u67a2\u7ebd\uff0c\u9999\u6e2f\u7684\u6218\u7565\u4f4d\u7f6e\u9700\u8981\u7279\u5b9a\u7684\u7f51\u7edc\u4f18\u5316\u3002\u5b9e\u65bd\u4ee5\u4e0b\u9ad8\u7ea7TCP\u914d\u7f6e\uff1a<\/p>\n \u5236\u5b9a\u5f3a\u5927\u7684\u7ef4\u62a4\u7b56\u7565\uff0c\u5305\u62ec\uff1a<\/p>\n – \u6bcf\u65e5\u6027\u80fd\u5ba1\u8ba1<\/p>\n – \u5b9e\u65f6\u76d1\u63a7\u548c\u544a\u8b66<\/p>\n – \u9884\u6d4b\u6027\u5bb9\u91cf\u89c4\u5212<\/p>\n – \u81ea\u52a8\u5907\u4efd\u9a8c\u8bc1<\/p>\n – \u5b9a\u671f\u5b89\u5168\u5ba1\u8ba1<\/p>\n – \u6027\u80fd\u57fa\u51c6\u6d4b\u8bd5<\/p>\n – \u707e\u96be\u6062\u590d\u8ba1\u5212<\/p>\n – \u6587\u6863\u548c\u8fd0\u884c\u624b\u518c<\/p>\n \u5728\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u65f6\uff0c\u9700\u8981\u4f18\u5316\u4ee5\u4e0b\u65b9\u9762\uff1a<\/p>\n – \u6765\u81ea\u4e2d\u56fd\u5927\u9646\u548c\u4e1c\u5357\u4e9a\u7684\u533a\u57df\u6d41\u91cf\u6a21\u5f0f<\/p>\n – \u8de8\u5883\u5ef6\u8fdf\u4f18\u5316<\/p>\n – \u7b26\u5408\u672c\u5730\u6570\u636e\u4fdd\u62a4\u6cd5\u89c4<\/p>\n – \u4e9a\u6d32\u8425\u4e1a\u65f6\u95f4\u9ad8\u5cf0\u671f\u7684\u5e26\u5bbd\u5206\u914d<\/p>\n – \u5197\u4f59\u7535\u6e90\u548c\u51b7\u5374\u7cfb\u7edf<\/p>\n – \u591a\u4e2a\u4e0a\u6e38\u63d0\u4f9b\u5546\u4ee5\u786e\u4fdd\u53ef\u9760\u6027<\/p>\n \u5bf9\u4e8e\u590d\u6742\u7684\u6027\u80fd\u95ee\u9898\uff0c\u4f7f\u7528\u8fd9\u4e9b\u8bca\u65ad\u547d\u4ee4\uff1a<\/p>\n \u5728\u9999\u6e2f\u52a8\u6001\u7684\u670d\u52a1\u5668\u79df\u7528\u73af\u5883\u4e2d\u7ef4\u6301\u6700\u4f73\u670d\u52a1\u5668\u6027\u80fd\u9700\u8981\u7efc\u5408\u65b9\u6cd5\uff0c\u7ed3\u5408\u76d1\u63a7\u3001\u4f18\u5316\u548c\u4e3b\u52a8\u7ef4\u62a4\u3002\u5b9a\u671f\u7cfb\u7edf\u5ba1\u8ba1\u3001\u6027\u80fd\u8c03\u4f18\u4ee5\u53ca\u5bf9\u670d\u52a1\u5668\u79df\u7528\u57fa\u7840\u8bbe\u65bd\u7684\u7406\u89e3\u5bf9\u4e8e\u6709\u6548\u9884\u9632\u548c\u89e3\u51b3\u670d\u52a1\u5668\u8fd0\u884c\u5835\u585e\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":" [vc_row el_class=”blog-detail-section”][vc_column][vc_column_text] [\/vc_column_text][\/vc_column][\/vc_row] \u7406\u89e3\u670d\u52a1\u5668\u8fd0\u884c\u5835\u585e \u670d\u52a1\u5668\u8fd0\u884c\u5835\u585e\u4f1a\u4e25\u91cd\u5f71\u54cd\u7cfb\u7edf\u6027\u80fd\uff0c\u5bfc\u81f4\u7528\u6237\u4e0d\u6ee1\u548c\u6f5c\u5728\u7684\u6536\u5165\u635f\u5931\u3002\u5728\u9ad8\u901f\u7684\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u73af\u5883\u4e2d\uff0c\u7406\u89e3\u548c\u89e3\u51b3\u8fd9\u4e9b\u6027\u80fd\u95ee\u9898\u5bf9\u4e8e\u7ef4\u6301\u6700\u4f73\u670d\u52a1\u5668\u8fd0\u8425\u81f3\u5173\u91cd\u8981\u3002\u73b0\u4ee3\u670d\u52a1\u5668\u57fa\u7840\u8bbe\u65bd\u9762\u4e34\u7740\u6765\u81ea\u5bb9\u5668\u5316\u5e94\u7528\u3001\u5fae\u670d\u52a1\u548c\u9ad8\u5e76\u53d1\u5de5\u4f5c\u8d1f\u8f7d\u7684\u4e0d\u65ad\u589e\u957f\u7684\u9700\u6c42\uff0c\u4f7f\u5f97\u5835\u585e\u7ba1\u7406\u53d8\u5f97\u6bd4\u4ee5\u5f80\u4efb\u4f55\u65f6\u5019\u90fd\u66f4\u52a0\u91cd\u8981\u3002 \u670d\u52a1\u5668\u8fd0\u884c\u5835\u585e\u7684\u5173\u952e\u6307\u6807 \u6027\u80fd\u4e0b\u964d\u901a\u5e38\u901a\u8fc7\u5404\u79cd\u75c7\u72b6\u8868\u73b0\u51fa\u6765\u3002\u7cfb\u7edf\u7ba1\u7406\u5458\u5e94\u8be5\u6ce8\u610f\u54cd\u5e94\u65f6\u95f4\u589e\u52a0\u3001CPU\u5cf0\u503c\u3001\u5185\u5b58\u8017\u5c3d\u548cI\/O\u7b49\u5f85\u65f6\u95f4\u3002\u53ca\u65e9\u53d1\u73b0\u5bf9\u4e8e\u9632\u6b62\u7ea7\u8054\u6545\u969c\u81f3\u5173\u91cd\u8981\u3002\u4ee5\u4e0b\u662f\u7cfb\u7edf\u5206\u6790\u7684\u7efc\u5408\u547d\u4ee4\u96c6\uff1a # \u5b9e\u65f6\u76d1\u63a7CPU\u4f7f\u7528\u7387 top -b -n 1 | grep “Cpu(s)” | awk ‘{print $2 + $4}’ # \u68c0\u67e5\u9ad8CPU\u6d88\u8017\u7684\u8fdb\u7a0b ps aux | sort -nr -k 3 | head -10 # \u76d1\u63a7\u7cfb\u7edf\u8d1f\u8f7d\u5e73\u5747\u503c uptime | awk ‘{print $8 $9 $10}’ # \u8ddf\u8e2a\u78c1\u76d8\u4f7f\u7528\u60c5\u51b5\u548cinode\u6d88\u8017 df -h && df -i \u670d\u52a1\u5668\u8fd0\u884c\u5835\u585e\u7684\u5e38\u89c1\u539f\u56e0 \u8d44\u6e90\u4e89\u7528\u901a\u5e38\u6e90\u4e8e\u591a\u4e2a\u65b9\u9762\uff1a – \u672a\u4f18\u5316\u4ee3\u7801\u6216\u6076\u610f\u8fdb\u7a0b\u5bfc\u81f4\u7684\u8fc7\u5ea6CPU\u4f7f\u7528 – […]<\/p>\n\u670d\u52a1\u5668\u8fd0\u884c\u5835\u585e\u7684\u5173\u952e\u6307\u6807<\/strong><\/h2>\n
\r\n# \u5b9e\u65f6\u76d1\u63a7CPU\u4f7f\u7528\u7387\r\ntop -b -n 1 | grep \"Cpu(s)\" | awk '{print $2 + $4}'\r\n\r\n# \u68c0\u67e5\u9ad8CPU\u6d88\u8017\u7684\u8fdb\u7a0b\r\nps aux | sort -nr -k 3 | head -10\r\n\r\n# \u76d1\u63a7\u7cfb\u7edf\u8d1f\u8f7d\u5e73\u5747\u503c\r\nuptime | awk '{print $8 $9 $10}'\r\n\r\n# \u8ddf\u8e2a\u78c1\u76d8\u4f7f\u7528\u60c5\u51b5\u548cinode\u6d88\u8017\r\ndf -h && df -i\r\n<\/code><\/pre>\n\u670d\u52a1\u5668\u8fd0\u884c\u5835\u585e\u7684\u5e38\u89c1\u539f\u56e0<\/strong><\/h2>\n
\u9ad8\u7ea7\u76d1\u63a7\u548c\u8bca\u65ad<\/strong><\/h2>\n
\r\nglobal:\r\n scrape_interval: 15s\r\n evaluation_interval: 15s\r\n\r\nalerting:\r\n alertmanagers:\r\n - static_configs:\r\n - targets:\r\n - alertmanager:9093\r\n\r\nrule_files:\r\n - \"alerts\/*.yml\"\r\n\r\nscrape_configs:\r\n - job_name: 'node'\r\n static_configs:\r\n - targets: ['localhost:9100']\r\n - job_name: 'mysql'\r\n static_configs:\r\n - targets: ['localhost:9104']\r\n - job_name: 'nginx'\r\n static_configs:\r\n - targets: ['localhost:9113']\r\n<\/code><\/pre>\n\u6027\u80fd\u4f18\u5316\u7b56\u7565<\/strong><\/h2>\n
\u9ad8\u7ea7\u4ee3\u7801\u5c42\u4f18\u5316<\/strong><\/h2>\n
\r\nimport threading\r\nfrom contextlib import contextmanager\r\nfrom typing import List, Optional\r\nimport time\r\n\r\nclass ConnectionPool:\r\n def __init__(self, size: int, max_retries: int = 3):\r\n self.size = size\r\n self.max_retries = max_retries\r\n self.connections: List[dict] = []\r\n self.lock = threading.Lock()\r\n self._initialize_pool()\r\n \r\n def _initialize_pool(self):\r\n for _ in range(self.size):\r\n self.connections.append({\r\n 'connection': self._create_connection(),\r\n 'in_use': False,\r\n 'last_used': None\r\n })\r\n \r\n @contextmanager\r\n def get_connection(self):\r\n connection = self._acquire_with_retry()\r\n try:\r\n yield connection\r\n finally:\r\n self._release(connection)\r\n \r\n def _acquire_with_retry(self) -> Optional[dict]:\r\n for attempt in range(self.max_retries):\r\n connection = self._acquire()\r\n if connection:\r\n return connection\r\n time.sleep(0.1 * (attempt + 1))\r\n raise ConnectionError(\"Failed to acquire connection\")\r\n<\/code><\/pre>\n\u9999\u6e2f\u670d\u52a1\u5668\u7684\u7f51\u7edc\u4f18\u5316<\/strong><\/h2>\n
\r\n# \u6dfb\u52a0\u5230 \/etc\/sysctl.conf\r\nnet.ipv4.tcp_fin_timeout = 30\r\nnet.ipv4.tcp_keepalive_time = 1200\r\nnet.ipv4.tcp_max_syn_backlog = 8192\r\nnet.ipv4.tcp_tw_reuse = 1\r\nnet.core.somaxconn = 65535\r\nnet.ipv4.tcp_max_tw_buckets = 1440000\r\nnet.ipv4.tcp_syncookies = 1\r\nnet.ipv4.tcp_max_syn_backlog = 3240000\r\n<\/code><\/pre>\n\u5168\u9762\u9884\u9632\u7b56\u7565<\/strong><\/h2>\n
\u9999\u6e2f\u670d\u52a1\u5668\u6ce8\u610f\u4e8b\u9879<\/strong><\/h2>\n
\u9ad8\u7ea7\u6545\u969c\u6392\u9664\u6280\u672f<\/strong><\/h2>\n
\r\n# \u68c0\u67e5\u78c1\u76d8I\/O\u548c\u8bc6\u522b\u5835\u585e\r\niostat -xz 1\r\n\r\n# \u76d1\u63a7\u7f51\u7edc\u8fde\u63a5\u548c\u72b6\u6001\r\nnetstat -tulpn && ss -s\r\n\r\n# \u5206\u6790\u5185\u5b58\u4f7f\u7528\u548c\u4ea4\u6362\u6d3b\u52a8\r\nfree -m && vmstat 1\r\n\r\n# \u8ddf\u8e2a\u7cfb\u7edf\u8c03\u7528\u548c\u6587\u4ef6\u64cd\u4f5c\r\nstrace -c -p [PID]\r\n\r\n# \u76d1\u63a7\u8fdb\u7a0b\u6811\u548c\u8d44\u6e90\u4f7f\u7528\r\npstree -p [PID] && top -H -p [PID]\r\n<\/code><\/pre>\n\u7ed3\u8bba<\/strong><\/h2>\n