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https://gitee.com/xmz7891/ykxmz.git
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修 devssh：定义了 HOST_FALLBACKS 却从来没用过
随身 WiFi 跟着教室网络走，地址会在 192.168.2.156 和
192.168.10.105 之间变。devssh.py 里明明定义了 HOST_FALLBACKS，
但 run / upload / download 三个函数**全都直接用 HOST** ——
于是设备一换网段就全部连不上，而且报的是连接超时，
看起来像设备挂了。
现在改成按候选列表顺序试：
环境变量 YKXMZ_DEV_HOST 优先
-> 192.168.2.156（当前）
-> 192.168.10.105（换网前用过）
并记住上次通的那个，后续调用不用每次从头试。
连上时打一行 `[devssh] 连上 x.x.x.x`，免得以后又搞不清连的是哪台。
还加了 `--probe` 子命令，一句话看现在哪个地址能用：
python _build/devssh.py --probe
实测：192.168.2.156 通、192.168.10.105 不通，自动选中前者。
This commit is contained in:
xmz7891
@@ -0,0 +1,20 @@
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修 devssh：定义了 HOST_FALLBACKS 却从来没用过
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随身 WiFi 跟着教室网络走，地址会在 192.168.2.156 和
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192.168.10.105 之间变。devssh.py 里明明定义了 HOST_FALLBACKS，
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但 run / upload / download 三个函数**全都直接用 HOST** ——
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于是设备一换网段就全部连不上，而且报的是连接超时，
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看起来像设备挂了。
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现在改成按候选列表顺序试：
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环境变量 YKXMZ_DEV_HOST 优先
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-> 192.168.2.156（当前）
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-> 192.168.10.105（换网前用过）
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并记住上次通的那个，后续调用不用每次从头试。
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连上时打一行 `[devssh] 连上 x.x.x.x`，免得以后又搞不清连的是哪台。
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还加了 `--probe` 子命令，一句话看现在哪个地址能用：
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python _build/devssh.py --probe
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实测：192.168.2.156 通、192.168.10.105 不通，自动选中前者。
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+89
-27
@@ -4,38 +4,100 @@
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用法：
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python _build/devssh.py "命令" # 跑一条命令
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python _build/devssh.py --script 文件 # 跑一段脚本
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== 地址会自动试 ==
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这台设备跟着教室网络走，地址会变：
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192.168.2.156 <-> 192.168.10.105
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所以这里**按顺序试多个地址**，谁先连通就用谁，不用改代码。
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想强制指定就用环境变量：
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$env:YKXMZ_DEV_HOST = "192.168.10.105"
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⚠ 以前的坑：定义了 HOST_FALLBACKS 但**三个函数都直接用 HOST**，
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那个常量根本没被用过。于是设备一换网段就全部连不上，
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而且报的是「Connection refused / timed out」，看起来像设备挂了。
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"""
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from __future__ import annotations
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import os
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import sys
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import time
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from pathlib import Path
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import paramiko
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# 随身 WiFi（Debian）的地址。
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#
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# 这台设备跟着教室网络走，地址会变：
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# 192.168.2.156 -> 192.168.10.105（换网络了）
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# 所以优先读环境变量 YKXMZ_DEV_HOST，没有才用下面的默认值。
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# 换网络时不用改代码：
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# $env:YKXMZ_DEV_HOST = "192.168.10.105"
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import os
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HOST = os.environ.get("YKXMZ_DEV_HOST", "192.168.10.105")
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USER = "root"
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PASSWORD = os.environ.get("YKXMZ_DEV_PASS", "1313144")
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# 旧地址留一份，方便回退或同时探测
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HOST_FALLBACKS = ("192.168.10.105", "192.168.2.156")
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# 候选地址，按顺序试。
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# 环境变量优先（想锁定时用），然后是最近见过的两个地址。
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_CANDIDATES: list[str] = []
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def _build_candidates() -> list[str]:
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out = []
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env_host = (os.environ.get("YKXMZ_DEV_HOST") or "").strip()
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if env_host:
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out.append(env_host)
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for host in ("192.168.2.156", # 当前地址
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"192.168.10.105"): # 换网络前用过
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if host not in out:
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out.append(host)
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return out
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CANDIDATES = _build_candidates()
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HOST = CANDIDATES[0] # 兼容老代码：默认取第一个
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HOST_FALLBACKS = tuple(CANDIDATES[1:])
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# 记住这次连通的是哪个，后续调用不用每次从头试
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_CONNECTED: str | None = None
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def _connect(timeout: int = 15):
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"""按候选顺序连，返回 (client, host)。全都不通才抛异常。"""
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global _CONNECTED
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order = list(CANDIDATES)
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if _CONNECTED and _CONNECTED in order:
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# 上次通的那个排最前，省一次失败尝试
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order.remove(_CONNECTED)
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order.insert(0, _CONNECTED)
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errors = []
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for host in order:
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client = paramiko.SSHClient()
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client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
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try:
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client.connect(host, username=USER, password=PASSWORD,
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timeout=timeout, banner_timeout=20,
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auth_timeout=20, look_for_keys=False,
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allow_agent=False)
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if _CONNECTED != host:
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print(f" [devssh] 连上 {host}")
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_CONNECTED = host
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return client, host
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except Exception as exc: # noqa: BLE001
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errors.append(f"{host}: {type(exc).__name__} {exc}")
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try:
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client.close()
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except Exception: # noqa: BLE001
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pass
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raise RuntimeError("所有候选地址都连不上：\n " + "\n ".join(errors))
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def probe() -> str | None:
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"""探一下现在哪个地址能用（不抛异常）。"""
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try:
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client, host = _connect(timeout=8)
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client.close()
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return host
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except Exception: # noqa: BLE001
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return None
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def run(command: str, timeout: int = 600, quiet: bool = False) -> tuple:
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client = paramiko.SSHClient()
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client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
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client.connect(HOST, username=USER, password=PASSWORD, timeout=15,
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banner_timeout=20, auth_timeout=20,
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look_for_keys=False, allow_agent=False)
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client, _host = _connect()
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try:
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_stdin, stdout, stderr = client.exec_command(command, timeout=timeout)
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out = stdout.read().decode("utf-8", "replace")
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@@ -52,10 +114,7 @@ def run(command: str, timeout: int = 600, quiet: bool = False) -> tuple:
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def upload(local: str, remote: str, mode: int = 0o644) -> None:
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client = paramiko.SSHClient()
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client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
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client.connect(HOST, username=USER, password=PASSWORD, timeout=15,
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look_for_keys=False, allow_agent=False)
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client, _host = _connect()
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try:
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sftp = client.open_sftp()
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sftp.put(local, remote)
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@@ -67,10 +126,7 @@ def upload(local: str, remote: str, mode: int = 0o644) -> None:
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def download(remote: str, local: str) -> None:
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client = paramiko.SSHClient()
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client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
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client.connect(HOST, username=USER, password=PASSWORD, timeout=15,
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look_for_keys=False, allow_agent=False)
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client, _host = _connect()
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try:
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sftp = client.open_sftp()
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sftp.get(remote, local)
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@@ -83,13 +139,19 @@ def download(remote: str, local: str) -> None:
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if __name__ == "__main__":
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if len(sys.argv) < 2:
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print(__doc__)
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print(" 候选地址: %s" % ", ".join(CANDIDATES))
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print(" 现在能连的: %s" % (probe() or "（一个都不通）"))
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sys.exit(1)
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if sys.argv[1] == "--script":
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run(Path(sys.argv[2]).read_text(encoding="utf-8"), timeout=600)
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elif sys.argv[1] == "--probe":
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got = probe()
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print(" 能连的地址: %s" % (got or "（一个都不通）"))
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sys.exit(0 if got else 1)
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else:
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args = sys.argv[1:]
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timeout = 600
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if args and args[0] == '--timeout':
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if args and args[0] == "--timeout":
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timeout = int(args[1])
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args = args[2:]
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run(" ".join(args), timeout=timeout)
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sys.exit(run(" ".join(args), timeout=timeout)[0])
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@@ -309,3 +309,24 @@ time code ms
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2026-10-07 19:00:44 200 1199
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2026-10-07 19:01:00 200 1335
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2026-10-07 19:01:17 200 1437
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2026-10-07 19:01:33 200 1430
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2026-10-07 19:01:50 200 1414
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2026-10-07 19:02:06 200 1146
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2026-10-07 19:02:22 200 1079
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2026-10-07 19:02:38 200 1429
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2026-10-07 19:02:54 200 1057
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2026-10-07 19:03:11 200 1479
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2026-10-07 19:03:27 200 1129
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2026-10-07 19:03:44 200 1790
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2026-10-07 19:04:00 200 1420
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2026-10-07 19:04:18 200 2459
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2026-10-07 19:04:34 200 1148
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2026-10-07 19:04:50 200 1420
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2026-10-07 19:05:06 200 1085
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2026-10-07 19:05:23 200 1428
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2026-10-07 19:05:39 200 1017
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2026-10-07 19:05:55 200 1427
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2026-10-07 19:06:11 200 1085
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2026-10-07 19:06:27 200 1139
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2026-10-07 19:06:44 200 1036
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2026-10-07 19:06:59 200 833
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@@ -0,0 +1,39 @@
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#!/bin/bash
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# relay-stability 停了，看它留下了什么
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set -u
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echo " ── 还有没有它的进程 ──"
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pgrep -af 'rp_|long2h|ab_long|collapse' 2>/dev/null | head -5 | sed 's/^/ /' || echo " （没有）"
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echo
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echo " ── 2 小时长测：最后状态 ──"
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if [ -f /root/long2h_health.tsv ]; then
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echo " 样本数: $(wc -l < /root/long2h_health.tsv)"
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echo " 最后 3 条:"
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tail -3 /root/long2h_health.tsv | sed 's/^/ /'
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else
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echo " （没有文件）"
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fi
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echo
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echo " ── 配比对照跑了吗 ──"
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for s in lanremote-tunnel lanremote-tunnel-h2; do
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printf " %-24s %s (%s)\n" "$s" \
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"$(grep -oE -- '--protocol [a-z0-9]+|--ha-connections [0-9]+' \
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"/etc/systemd/system/$s.service" 2>/dev/null | tr '\n' ' ')" \
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"$(systemctl is-active $s 2>/dev/null)"
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done
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ls -la --time-style=+%H:%M /root/*ab*.tsv /root/*ab*.out /root/*ratio* 2>/dev/null | sed 's/^/ /' || echo " （没有对照的产物）"
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echo
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echo " ── 它最后改的脚本（看它做到哪一步）──"
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ls -la --time-style=+%H:%M:%S /root/rp_ab_long.sh /root/rp_collapse.py /root/rp_collapse.tsv 2>/dev/null | sed 's/^/ /'
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echo
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echo " ── 公网自检 ──"
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curl -s --max-time 20 -o /dev/null -w ' HTTP %{http_code} %{time_total}s\n' \
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-H 'User-Agent: LanRemote/1.8.2' https://relay.xxmxxs.top/v1/health
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echo
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echo " ── 设备时间 ──"
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date '+ %H:%M:%S'
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