[vc_row el_class=”blog-detail-section”][vc_column][vc_column_text]<\/p>\n
\u4f3a\u670d\u5668\u904b\u884c\u5835\u585e<\/a>\u6703\u56b4\u91cd\u5f71\u97ff\u7cfb\u7d71\u6548\u80fd\uff0c\u5c0e\u81f4\u4f7f\u7528\u8005\u4e0d\u6eff\u548c\u6f5b\u5728\u7684\u6536\u5165\u640d\u5931\u3002\u5728\u9ad8\u901f\u7684\u9999\u6e2f\u4f3a\u670d\u5668\u79df\u7528<\/a>\u74b0\u5883\u4e2d\uff0c\u7406\u89e3\u548c\u89e3\u6c7a\u9019\u4e9b\u6548\u80fd\u554f\u984c\u5c0d\u65bc\u7dad\u6301\u6700\u4f73\u4f3a\u670d\u5668\u904b\u71df\u81f3\u95dc\u91cd\u8981\u3002\u73fe\u4ee3\u4f3a\u670d\u5668\u57fa\u790e\u8a2d\u65bd\u9762\u81e8\u8457\u4f86\u81ea\u5bb9\u5668\u5316\u61c9\u7528\u7a0b\u5f0f\u3001\u5fae\u670d\u52d9\u548c\u9ad8\u4f75\u767c\u5de5\u4f5c\u8ca0\u8f09\u7684\u4e0d\u65b7\u589e\u9577\u7684\u9700\u6c42\uff0c\u4f7f\u5f97\u5835\u585e\u7ba1\u7406\u8b8a\u5f97\u6bd4\u4ee5\u5f80\u4efb\u4f55\u6642\u5019\u90fd\u66f4\u52a0\u91cd\u8981\u3002<\/p>\n [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text]<\/p>\n \u6548\u80fd\u4e0b\u964d\u901a\u5e38\u901a\u904e\u5404\u7a2e\u75c7\u72c0\u8868\u73fe\u51fa\u4f86\u3002\u7cfb\u7d71\u7ba1\u7406\u54e1\u61c9\u8a72\u6ce8\u610f\u56de\u61c9\u6642\u9593\u589e\u52a0\u3001CPU\u5c16\u5cf0\u3001\u8a18\u61b6\u9ad4\u8017\u76e1\u548cI\/O\u7b49\u5f85\u6642\u9593\u3002\u53ca\u65e9\u767c\u73fe\u5c0d\u65bc\u9632\u6b62\u7d1a\u806f\u6545\u969c\u81f3\u95dc\u91cd\u8981\u3002\u4ee5\u4e0b\u662f\u7cfb\u7d71\u5206\u6790\u7684\u7d9c\u5408\u547d\u4ee4\u96c6\uff1a<\/p>\n [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text]<\/p>\n \u8cc7\u6e90\u722d\u7528\u901a\u5e38\u6e90\u65bc\u591a\u500b\u65b9\u9762\uff1a<\/p>\n – \u672a\u512a\u5316\u7a0b\u5f0f\u78bc\u6216\u60e1\u610f\u7a0b\u5e8f\u5c0e\u81f4\u7684\u904e\u5ea6CPU\u4f7f\u7528<\/p>\n – \u9577\u671f\u904b\u884c\u61c9\u7528\u7a0b\u5f0f\u7684\u8a18\u61b6\u9ad4\u6d29\u6f0f<\/p>\n – \u5927\u91cf\u8cc7\u6599\u5eab\u64cd\u4f5c\u5c0e\u81f4\u7684\u78c1\u789fI\/O\u9650\u5236<\/p>\n – \u983b\u5bec\u4e0d\u8db3\u6216DDoS\u653b\u64ca\u5c0e\u81f4\u7684\u7db2\u8def\u64c1\u585e<\/p>\n – \u8cc7\u6599\u5eab\u67e5\u8a62\u6548\u7387\u4f4e\u4e0b\u548c\u7d22\u5f15\u7b56\u7565\u4e0d\u7576<\/p>\n – \u8cc7\u6e90\u5bc6\u96c6\u578b\u80cc\u666f\u7a0b\u5e8f<\/p>\n – \u5de5\u4f5c\u8ca0\u8f09\u6240\u9700\u4f3a\u670d\u5668\u8cc7\u6e90\u4e0d\u8db3<\/p>\n [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text]<\/p>\n \u4f7f\u7528\u696d\u754c\u6a19\u6e96\u5de5\u5177\u5be6\u65bd\u5f37\u5927\u7684\u76e3\u63a7\u89e3\u6c7a\u65b9\u6848\u3002\u4ee5\u4e0b\u662f\u5e36\u6709\u8b66\u5831\u529f\u80fd\u7684\u5b8c\u6574Prometheus\u914d\u7f6e\uff1a<\/p>\n [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text]<\/p>\n \u5be6\u65bd\u9019\u4e9b\u7d93\u904e\u9a57\u8b49\u7684\u512a\u5316\u6280\u8853\uff1a<\/p>\n 1. \u4f7f\u7528\u81ea\u52d5\u5316\u8173\u672c\u6e05\u7406\u66ab\u5b58\u6a94\u6848\u548c\u65e5\u8a8c<\/p>\n 2. \u901a\u904e\u9069\u7576\u7684\u7d22\u5f15\u548c\u67e5\u8a62\u898f\u5283\u512a\u5316\u8cc7\u6599\u5eab\u67e5\u8a62<\/p>\n 3. \u5be6\u65bd\u591a\u7d1a\u5feb\u53d6\u6a5f\u5236<\/p>\n 4. \u914d\u7f6e\u8ca0\u8f09\u5e73\u8861\u4ee5\u5be6\u73fe\u9ad8\u53ef\u7528\u6027<\/p>\n 5. \u5229\u7528CDN\u670d\u52d9\u9032\u884c\u975c\u614b\u5167\u5bb9\u5206\u767c<\/p>\n 6. \u5be6\u65bd\u9069\u7576\u7684\u9023\u63a5\u6c60<\/p>\n 7. \u555f\u7528\u7db2\u8def\u6d41\u91cf\u58d3\u7e2e<\/p>\n 8. \u512a\u5316\u61c9\u7528\u7a0b\u5f0f\u7a0b\u5f0f\u78bc\u4ee5\u66f4\u597d\u5730\u5229\u7528\u8cc7\u6e90<\/p>\n [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text]<\/p>\n \u4ee5\u4e0b\u662f\u5177\u6709\u91cd\u8a66\u6a5f\u5236\u7684\u8907\u96dc\u9023\u63a5\u6c60\u5be6\u73fe\uff1a<\/p>\n [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text]<\/p>\n \u4f5c\u70ba\u4e9e\u6d32\u7db2\u969b\u7db2\u8def\u6a1e\u7d10\uff0c\u9999\u6e2f\u7684\u6230\u7565\u4f4d\u7f6e\u9700\u8981\u7279\u5b9a\u7684\u7db2\u8def\u512a\u5316\u3002\u5be6\u65bd\u4ee5\u4e0b\u9ad8\u7d1aTCP\u914d\u7f6e\uff1a<\/p>\n [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text]<\/p>\n \u5236\u5b9a\u5f37\u5927\u7684\u7dad\u8b77\u7b56\u7565\uff0c\u5305\u62ec\uff1a<\/p>\n – \u6bcf\u65e5\u6548\u80fd\u7a3d\u6838<\/p>\n – \u5373\u6642\u76e3\u63a7\u548c\u544a\u8b66<\/p>\n – \u9810\u6e2c\u6027\u5bb9\u91cf\u898f\u5283<\/p>\n – \u81ea\u52d5\u5099\u4efd\u9a57\u8b49<\/p>\n – \u5b9a\u671f\u5b89\u5168\u7a3d\u6838<\/p>\n – \u6548\u80fd\u57fa\u6e96\u6e2c\u8a66<\/p>\n – \u707d\u96e3\u5fa9\u539f\u8a08\u5283<\/p>\n – \u6587\u4ef6\u548c\u904b\u884c\u624b\u518a<\/p>\n [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text]<\/p>\n \u5728\u9999\u6e2f\u4f3a\u670d\u5668\u79df\u7528\u6642\uff0c\u9700\u8981\u512a\u5316\u4ee5\u4e0b\u65b9\u9762\uff1a<\/p>\n – \u4f86\u81ea\u4e2d\u570b\u5927\u9678\u548c\u6771\u5357\u4e9e\u7684\u5340\u57df\u6d41\u91cf\u6a21\u5f0f<\/p>\n – \u8de8\u5883\u5ef6\u9072\u512a\u5316<\/p>\n – \u7b26\u5408\u672c\u5730\u8cc7\u6599\u4fdd\u8b77\u6cd5\u898f<\/p>\n – \u4e9e\u6d32\u71df\u696d\u6642\u9593\u5c16\u5cf0\u671f\u7684\u983b\u5bec\u5206\u914d<\/p>\n – \u5197\u9918\u96fb\u6e90\u548c\u51b7\u537b\u7cfb\u7d71<\/p>\n – \u591a\u500b\u4e0a\u6e38\u63d0\u4f9b\u5546\u4ee5\u78ba\u4fdd\u53ef\u9760\u6027<\/p>\n [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text]<\/p>\n \u5c0d\u65bc\u8907\u96dc\u7684\u6548\u80fd\u554f\u984c\uff0c\u4f7f\u7528\u9019\u4e9b\u8a3a\u65b7\u547d\u4ee4\uff1a<\/p>\n [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text]<\/p>\n \u5728\u9999\u6e2f\u52d5\u614b\u7684\u4f3a\u670d\u5668\u79df\u7528\u74b0\u5883\u4e2d\u7dad\u6301\u6700\u4f73\u4f3a\u670d\u5668\u6548\u80fd\u9700\u8981\u7d9c\u5408\u65b9\u6cd5\uff0c\u7d50\u5408\u76e3\u63a7\u3001\u512a\u5316\u548c\u4e3b\u52d5\u7dad\u8b77\u3002\u5b9a\u671f\u7cfb\u7d71\u7a3d\u6838\u3001\u6548\u80fd\u8abf\u512a\u4ee5\u53ca\u5c0d\u4f3a\u670d\u5668\u79df\u7528\u57fa\u790e\u8a2d\u65bd\u7684\u7406\u89e3\u5c0d\u65bc\u6709\u6548\u9810\u9632\u548c\u89e3\u6c7a\u4f3a\u670d\u5668\u904b\u884c\u5835\u585e\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n [\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":" [vc_row el_class=”blog-detail-section”][vc_ […]<\/p>\n\u4f3a\u670d\u5668\u904b\u884c\u5835\u585e\u7684\u95dc\u9375\u6307\u6a19<\/strong><\/h2>\n
\r\n# \u5be6\u6642\u76e3\u63a7CPU\u4f7f\u7528\u7387\r\ntop -b -n 1 | grep \"Cpu(s)\" | awk '{print $2 + $4}'\r\n\r\n# \u6aa2\u67e5\u9ad8CPU\u6d88\u8017\u7684\u7a0b\u5e8f\r\nps aux | sort -nr -k 3 | head -10\r\n\r\n# \u76e3\u63a7\u7cfb\u7d71\u8ca0\u8f09\u5e73\u5747\u503c\r\nuptime | awk '{print $8 $9 $10}'\r\n\r\n# \u8ffd\u8e64\u78c1\u789f\u4f7f\u7528\u60c5\u6cc1\u548cinode\u6d88\u8017\r\ndf -h && df -i\r\n<\/code><\/pre>\n\u4f3a\u670d\u5668\u904b\u884c\u5835\u585e\u7684\u5e38\u898b\u539f\u56e0<\/strong><\/h2>\n
\u9ad8\u7d1a\u76e3\u63a7\u548c\u8a3a\u65b7<\/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\u6548\u80fd\u512a\u5316\u7b56\u7565<\/strong><\/h2>\n
\u9ad8\u7d1a\u7a0b\u5f0f\u78bc\u5c64\u512a\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\u4f3a\u670d\u5668\u7684\u7db2\u8def\u512a\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\u9810\u9632\u7b56\u7565<\/strong><\/h2>\n
\u9999\u6e2f\u4f3a\u670d\u5668\u6ce8\u610f\u4e8b\u9805<\/strong><\/h2>\n
\u9ad8\u7d1a\u6545\u969c\u6392\u9664\u6280\u8853<\/strong><\/h2>\n
\r\n# \u6aa2\u67e5\u78c1\u789fI\/O\u548c\u8b58\u5225\u5835\u585e\r\niostat -xz 1\r\n\r\n# \u76e3\u63a7\u7db2\u8def\u9023\u63a5\u548c\u72c0\u614b\r\nnetstat -tulpn && ss -s\r\n\r\n# \u5206\u6790\u8a18\u61b6\u9ad4\u4f7f\u7528\u548c\u4ea4\u63db\u6d3b\u52d5\r\nfree -m && vmstat 1\r\n\r\n# \u8ffd\u8e64\u7cfb\u7d71\u8abf\u7528\u548c\u6a94\u6848\u64cd\u4f5c\r\nstrace -c -p [PID]\r\n\r\n# \u76e3\u63a7\u7a0b\u5e8f\u6a39\u548c\u8cc7\u6e90\u4f7f\u7528\r\npstree -p [PID] && top -H -p [PID]\r\n<\/code><\/pre>\n\u7d50\u8ad6<\/strong><\/h2>\n