\u5c0d\u65bc\u81ea\u52d5\u50b3\u8f38\uff0c\u8acb\u8003\u616e\u4f7f\u7528\u9019\u500b\u5be6\u73fe\u91cd\u8a66\u908f\u8f2f\u7684Python\u6307\u4ee4\u78bc\uff1a<\/p>\n

import subprocess\r\nimport time\r\n\r\ndef transfer_with_retry(source, dest, max_retries=3):\r\n    for attempt in range(max_retries):\r\n        try:\r\n            result = subprocess.run([\r\n                'rsync',\r\n                '-avzP',\r\n                '--timeout=60',\r\n                source,\r\n                dest\r\n            ], check=True)\r\n            return True\r\n        except subprocess.CalledProcessError:\r\n            if attempt < max_retries - 1:\r\n                time.sleep(60)  # \u91cd\u8a66\u524d\u7b49\u5f85\r\n                continue\r\n            return False\r\n\r\n# \u4f7f\u7528\u793a\u4f8b\r\ntransfer_with_retry(\r\n    '\/local\/path\/',\r\n    'user@remote:\/remote\/path\/'\r\n)\r\n<\/code><\/pre>\n
[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=\"blog-detail-section\"][vc_column][vc_column_text]<\/p>\n
\u9999\u6e2f\u7279\u5b9a\u7684\u7db2\u8def\u6ce8\u610f\u4e8b\u9805<\/strong><\/h2>\n
\u4f5c\u70ba\u4e3b\u8981\u7db2\u969b\u7db2\u8def\u6a1e\u7d10\uff0c\u5728\u9999\u6e2f\u904b\u71df\u4f3a\u670d\u5668\u9762\u81e8\u7368\u7279\u7684\u6311\u6230\u3002\u5728\u8655\u7406\u8de8\u5883\u50b3\u8f38\u6642\uff0c\u8acb\u5be6\u65bd\u4ee5\u4e0b\u6700\u4f73\u5316\uff1a<\/p>\n
\n
\u4f7f\u7528BGP\u4efb\u64ad\u8def\u7531\u5be6\u73fe\u591a\u8def\u5f91\u5197\u9918<\/li>\n
\u91dd\u5c0d\u4e2d\u570b\u5927\u9678\u9023\u63a5\u5be6\u65bd\u667a\u6167\u8def\u7531\u8868<\/li>\n
\u70ba\u983b\u7e41\u50b3\u8f38\u7684\u6a94\u6848\u90e8\u7f72\u672c\u5730\u5feb\u53d6\u6a5f\u5236<\/li>\n<\/ul>\n
# \u91dd\u5c0d\u4e2d\u570b\u5927\u9678\u7684\u8def\u7531\u6700\u4f73\u5316\u793a\u4f8b\r\nip route add 203.0.113.0\/24 via 10.0.0.1 table 100\r\nip rule add from 192.168.1.0\/24 table 100\r\n<\/code><\/pre>\n
\u5c0d\u65bc\u4f3a\u670d\u5668\u8a17\u7ba1\u8a2d\u5b9a\uff0c\u8acb\u78ba\u4fdd\u60a8\u7684\u7db2\u8def\u914d\u7f6e\u8003\u616e\u5230\u6578\u64da\u4e2d\u5fc3\u4e4b\u9593\u7684\u5be6\u9ad4\u8ddd\u96e2\uff1a<\/p>\n
# \u5de8\u578b\u6846\u7684MTU\u6700\u4f73\u5316\r\nifconfig eth0 mtu 9000\r\n\r\n# \u555f\u7528\u6578\u64da\u5305\u805a\u5408\r\nethtool -K eth0 gso on\r\nethtool -K eth0 tso on\r\nethtool -K eth0 gro on\r\n<\/code><\/pre>\n
[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=\"blog-detail-section\"][vc_column][vc_column_text]<\/p>\n
\u76e3\u63a7\u548c\u9810\u9632\u7b56\u7565<\/strong><\/h2>\n
\u4f7f\u7528Prometheus\u548cNode Exporter\u5be6\u65bd\u4ee5\u4e0b\u7d9c\u5408\u76e3\u63a7\u89e3\u6c7a\u65b9\u6848\uff0c\u4ee5\u5373\u6642\u8ffd\u8e64\u4e1f\u5305\u6307\u6a19\uff1a<\/p>\n
# Docker compose\u76e3\u63a7\u5806\u758a\u8a2d\u5b9a\r\nversion: '3.8'\r\nservices:\r\n  prometheus:\r\n    image: prom\/prometheus:latest\r\n    volumes:\r\n      - .\/prometheus.yml:\/etc\/prometheus\/prometheus.yml\r\n    ports:\r\n      - \"9090:9090\"\r\n  \r\n  node-exporter:\r\n    image: quay.io\/prometheus\/node-exporter:latest\r\n    ports:\r\n      - \"9100:9100\"\r\n    command:\r\n      - '--path.rootfs=\/host'\r\n    network_mode: host<\/code><\/pre>\n
\u65b0\u589e\u9019\u4e9bPrometheus\u8b66\u5831\u4ee5\u63d0\u65e9\u6aa2\u6e2c\u4e1f\u5305\uff1a<\/p>\n
groups:\r\n- name: packet_loss_alerts\r\n  rules:\r\n  - alert: HighPacketLoss\r\n    expr: rate(node_network_receive_drop_total[5m]) > 0.01\r\n    for: 5m\r\n    labels:\r\n      severity: warning\r\n    annotations:\r\n      summary: \u6aa2\u6e2c\u5230\u9ad8\u4e1f\u5305\u7387<\/code><\/pre>\n
[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=\"blog-detail-section\"][vc_column][vc_column_text]<\/p>\n
\u5e38\u898b\u5834\u666f\u6545\u969c\u6392\u9664<\/strong><\/h2>\n
\u7576\u4f3a\u670d\u5668\u79df\u7528\u74b0\u5883\u4e2d\u51fa\u73fe\u4e1f\u5305\u6642\uff0c\u8acb\u9075\u5faa\u4ee5\u4e0b\u7cfb\u7d71\u65b9\u6cd5\uff1a<\/p>\n
\n
\u6aa2\u67e5\u7db2\u8def\u4ecb\u9762\u7d71\u8a08\u8cc7\u8a0a\uff1a<\/strong>\n
ethtool -S eth0 | grep -i drop<\/code><\/pre>\n<\/li>\n
\u5206\u6790TCP\u9023\u63a5\u72c0\u614b\uff1a<\/strong>\n
netstat -s | grep -i retransmit<\/code><\/pre>\n<\/li>\n
\u76e3\u63a7\u983b\u5bec\u4f7f\u7528\u7387\uff1a<\/strong>\n
iftop -i eth0 -P<\/code><\/pre>\n<\/li>\n<\/ol>\n
[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=\"blog-detail-section\"][vc_column][vc_column_text]<\/p>\n
\u6700\u4f73\u5be6\u8e10\u548c\u9762\u5411\u672a\u4f86\u7684\u6e96\u5099<\/strong><\/h2>\n
\u70ba\u4e86\u5728\u9999\u6e2f\u7684\u4f3a\u670d\u5668\u79df\u7528\u74b0\u5883\u4e2d\u7372\u5f97\u6700\u4f73\u7684\u6a94\u6848\u50b3\u8f38\u6548\u80fd\uff0c\u8acb\u5be6\u65bd\u4ee5\u4e0b\u95dc\u9375\u7b56\u7565\uff1a<\/p>\n
\n
\u70ba\u983b\u7e41\u8a2a\u554f\u7684\u6a94\u6848\u90e8\u7f72\u908a\u7de3\u5feb\u53d6\u7bc0\u9ede<\/li>\n
\u4f7f\u7528\u5167\u5bb9\u5206\u767c\u7db2\u8def\uff08CDN\uff09\u8655\u7406\u975c\u614b\u5167\u5bb9<\/li>\n
\u5be6\u65bd\u81ea\u52d5\u6545\u969c\u8f49\u79fb\u6a5f\u5236<\/li>\n
\u5b9a\u671f\u9032\u884c\u7db2\u8def\u6548\u80fd\u57fa\u6e96\u6e2c\u8a66<\/li>\n<\/ul>\n
\u4ee5\u4e0b\u662f\u5b9a\u671f\u6e2c\u8a66\u50b3\u8f38\u901f\u5ea6\u7684\u57fa\u6e96\u6e2c\u8a66\u6307\u4ee4\u78bc\uff1a<\/p>\n
#!\/bin\/bash\r\n\r\nLOG_FILE=\"\/var\/log\/transfer_benchmark.log\"\r\n\r\nbenchmark_transfer() {\r\n    local size=\"100M\"\r\n    local test_file=\"\/tmp\/test_file\"\r\n    \r\n    dd if=\/dev\/urandom of=$test_file bs=1M count=100\r\n    \r\n    echo \"$(date): \u958b\u59cb\u57fa\u6e96\u6e2c\u8a66\" >> $LOG_FILE\r\n    \r\n    time rsync -avz --stats $test_file user@remote:\/tmp\/ 2>> $LOG_FILE\r\n    \r\n    rm $test_file\r\n}\r\n\r\nbenchmark_transfer<\/code><\/pre>\n
[vc_row el_class=\"blog-detail-section\"][vc_column][vc_column_text]<\/p>\n
\u7d50\u8ad6<\/strong><\/h2>\n
\u5728\u9999\u6e2f\u52d5\u614b\u7684\u4f3a\u670d\u5668\u79df\u7528\u548c\u4f3a\u670d\u5668\u8a17\u7ba1\u74b0\u5883\u4e2d\uff0c\u638c\u63e1\u4e1f\u5305\u7ba1\u7406\u5c0d\u65bc\u7dad\u6301\u53ef\u9760\u7684\u6a94\u6848\u50b3\u8f38\u81f3\u95dc\u91cd\u8981\u3002\u900f\u904e\u5be6\u65bd\u4e0a\u8ff0\u6280\u8853\u89e3\u6c7a\u65b9\u6848\u548c\u76e3\u63a7\u7b56\u7565\uff0c\u60a8\u53ef\u4ee5\u78ba\u4fdd\u4f3a\u670d\u5668\u57fa\u790e\u8a2d\u65bd\u4e4b\u9593\u7684\u7a69\u5065\u8cc7\u6599\u50b3\u8f38\u3002\u8acb\u8a18\u4f4f\u96a8\u8457\u57fa\u790e\u8a2d\u65bd\u7684\u767c\u5c55\u5b9a\u671f\u5be9\u67e5\u548c\u66f4\u65b0\u60a8\u7684\u7db2\u8def\u6700\u4f73\u5316\u53c3\u6578\u3002<\/p>\n
\u70ba\u4e86\u5728\u60a8\u7684\u4f3a\u670d\u5668\u79df\u7528\u8a2d\u5b9a\u4e2d\u7372\u5f97\u6700\u4f73\u6548\u80fd\uff0c\u8acb\u8003\u616e\u7cfb\u7d71\u5730\u5be6\u65bd\u9019\u4e9b\u89e3\u6c7a\u65b9\u6848\uff0c\u5f9e\u57fa\u672c\u7684TCP\u6700\u4f73\u5316\u958b\u59cb\uff0c\u9010\u6b65\u904e\u6e21\u5230\u66f4\u9ad8\u7d1a\u7684\u76e3\u63a7\u548c\u81ea\u52d5\u5316\u5de5\u5177\u3002\u8acb\u8a18\u4f4f\uff0c\u9999\u6e2f\u8207\u5404\u500b\u76ee\u7684\u5730\u4e4b\u9593\u7684\u7db2\u8def\u72c0\u6cc1\u53ef\u80fd\u6703\u6709\u986f\u8457\u5dee\u7570\uff0c\u56e0\u6b64\u5b9a\u671f\u6e2c\u8a66\u548c\u8abf\u6574\u5c0d\u65bc\u7dad\u6301\u6700\u4f73\u6548\u80fd\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
Read More…<\/a><\/p>\n","protected":false},"author":3,"featured_media":17963,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[61],"tags":[4309,4308,1945,764,247],"class_list":["post-17968","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hong-kong-dedicated-server-tc","tag-server-file-transfer-tc","tag-packet-loss-tc","tag-network-optimization-tc","tag-data-transmission-tc","tag-hong-kong-server-rental-tc"],"acf":[],"yoast_head":"\n