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xmz7891
b705216e4a
琚帶绔?- 淇 MTU 闂锛氬す MSS + 璺緞 MTU 鎺㈡祴锛堝叕缃戝彲鐢ㄧ巼 48% -> 100%锛?- 澶嶇敤 HTTP 杩炴帴锛堝厤鎺夋瘡娆℃柊寤?TLS 鐨?30% 鎻℃墜澶辫触锛?- 姣忓垎閽熷洖澶存壘灞€鍩熺綉锛岃嚜鍔ㄥ垏鍥炲揩 400 鍊嶇殑璺緞 - 鐢婚潰蹇冭烦甯э細闈欐鏃剁渷娴侀噺锛屽鎴风浠嶇煡閬撴祦鏄椿鐨?- 閿佸睆鏃剁粰鍑哄彲鎿嶄綔鐨勬彁绀? 鎵嬭〃绔?- 鍐呯疆 GTS Root R4 / GlobalSign Root CA锛屼慨 SSLHandshakeException - 杩炴帴閿欒缈昏瘧鎴愪汉璇濓紙璇佷功/鏃堕棿/瑙ｆ瀽/瓒呮椂鍒嗗埆鎻愮ず锛?- 缁忎腑杞繛涓婂悗鐢ㄦ湇鍔″櫒鎶ョ殑鍦板潃鍒锋柊宸查厤瀵硅褰?- 鏂板灞€鍩熺綉杩炴帴椤甸潰銆佹湇鍔″櫒寤惰繜妫€娴? 鏈嶅姟鍣ㄧ - 鏀寔 chunked 璇锋眰浣擄紙淇瘡 16 绉掍竴娆＄殑杩炴帴閿欎贡涓庡ぇ闈㈢Н 502锛?- 缃戠粶璋冧紭鑴氭湰 net-tune.sh锛堝紑鏈鸿嚜鍔ㄥ簲鐢級 - 绠＄悊椤碉細鎵归噺鍒犻櫎銆佺綉缁滀綋妫€銆佷笅杞藉尯 - 闅ч亾鏀?HTTP/2 + 鍙岃繛鎺? 鏂囨。 - 璁稿彲鍗忚 / 瀹夎鍓嶅繀璇?/ 瀹夎鍚庨』鐭ワ紙浣滆€咃細灏忛害瀛愶級
81 lines
3.0 KiB
Bash
81 lines
3.0 KiB
Bash
#!/bin/bash
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# 查为什么轻负载 OK、密集请求就 502/530。
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#
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# 现象：
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# 每 2 秒打一次健康检查 -> 15/15 全通
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# e2e 测试（密集请求 + 长轮询 + 256KB）-> 全 502/530
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#
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# 502 = Cloudflare 到不了源站；530 = 源站 DNS 错误。
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# 但源站就是本机 127.0.0.1:8080 —— 那说明 cloudflared 自己的连接掉了。
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set -u
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RELAY_DIR=/root/lanremote-relay
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URL=https://relay.xxmxxs.top
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echo "===== 1. 隧道当前状态 ====="
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echo " 服务: $(systemctl is-active lanremote-tunnel)"
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echo " 已注册连接: $(grep -c 'Registered tunnel connection' $RELAY_DIR/tunnel.log 2>/dev/null || echo 0)"
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echo " 连接断开: $(grep -c 'Connection terminated' $RELAY_DIR/tunnel.log 2>/dev/null || echo 0)"
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echo " quic 错误: $(grep -c 'Failed to dial a quic' $RELAY_DIR/tunnel.log 2>/dev/null || echo 0)"
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echo
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echo " 日志最近 6 行："
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tail -6 "$RELAY_DIR/tunnel.log" 2>/dev/null | sed 's/^/ /'
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echo
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echo "===== 2. 轻负载（每 2 秒一次，10 次）====="
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OK=0
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for i in $(seq 1 10); do
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C=$(timeout 20 curl -4 -s -o /dev/null -w '%{http_code}' -H 'User-Agent: LanRemote/1.4.0' "$URL/v1/health" 2>/dev/null)
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[ "$C" = "200" ] && OK=$((OK+1))
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printf " %2d: %s\n" "$i" "${C:-超时}"
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sleep 2
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done
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echo " 轻负载 $OK/10"
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echo
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echo "===== 3. 密集负载（不间隔，20 次）====="
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DOK=0
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for i in $(seq 1 20); do
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C=$(timeout 20 curl -4 -s -o /dev/null -w '%{http_code}' -H 'User-Agent: LanRemote/1.4.0' "$URL/v1/health" 2>/dev/null)
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[ "$C" = "200" ] && DOK=$((DOK+1))
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printf " %2d: %s\n" "$i" "${C:-超时}"
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done
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echo " 密集负载 $DOK/20"
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echo
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echo "===== 4. 大包（256KB 上传）====="
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head -c 262144 /dev/zero | tr '\0' 'A' > /tmp/big.bin
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C=$(timeout 60 curl -4 -s -o /dev/null -w '%{http_code}' \
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-H 'User-Agent: LanRemote/1.4.0' \
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-X POST --data-binary @/tmp/big.bin "$URL/v1/admin/devices" 2>/dev/null)
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echo " 256KB POST: HTTP ${C:-超时}"
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rm -f /tmp/big.bin
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echo
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echo "===== 5. 大包之后隧道还活着吗 ====="
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echo " 已注册连接: $(grep -c 'Registered tunnel connection' $RELAY_DIR/tunnel.log 2>/dev/null || echo 0)"
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echo " 连接断开: $(grep -c 'Connection terminated' $RELAY_DIR/tunnel.log 2>/dev/null || echo 0)"
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echo
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echo " 日志最近 8 行："
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tail -8 "$RELAY_DIR/tunnel.log" 2>/dev/null | sed 's/^/ /'
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echo
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echo "===== 6. 源站（本地）在同一时刻的表现 ====="
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LOK=0
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for i in $(seq 1 20); do
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C=$(timeout 8 curl -s -o /dev/null -w '%{http_code}' http://127.0.0.1:8080/v1/health)
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[ "$C" = "200" ] && LOK=$((LOK+1))
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done
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echo " 本地源站 $LOK/20"
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echo
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echo "===== 7. 结论 ====="
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echo " 轻负载 $OK/10 密集 $DOK/20 本地 $LOK/20"
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if [ "$LOK" -ge 19 ] && [ "$DOK" -lt 10 ]; then
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echo " -> 源站没问题，是**隧道在密集请求下扛不住**"
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echo " 这条 4G 线路的带宽/丢包撑不住高并发。"
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echo " 客户端本身的失败重试就是关键（被控端/手表都有）。"
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elif [ "$LOK" -lt 15 ]; then
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echo " -> 源站也有问题，去看 relay.log"
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fi
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