a

backend/api/routes/accounts.py

@@ -20,6 +20,7 @@ from api.supervisor_account import (
     parse_supervisor_status,
     program_name_for_account,
     tail_supervisor,
+    tail_supervisord_log,
 )
 
 logger = logging.getLogger(__name__)
@@ -234,18 +235,35 @@ async def trading_status_for_account(account_id: int, user: Dict[str, Any] = Dep
         running, pid, state = parse_supervisor_status(raw)
         # 仅 owner/admin 可看 tail（便于自助排障）
         stderr_tail = ""
+        stderr_tail_error = ""
+        supervisord_tail = ""
         try:
             is_admin = (user.get("role") or "user") == "admin"
             role = UserAccountMembership.get_role(int(user["id"]), int(account_id)) if not is_admin else "admin"
             if is_admin or role == "owner":
                 if state in {"FATAL", "EXITED", "BACKOFF"}:
                     stderr_tail = tail_supervisor(program, "stderr", 120)
-        except Exception:
+                    if not stderr_tail:
+                        try:
+                            supervisord_tail = tail_supervisord_log(80)
+                        except Exception:
+                            supervisord_tail = ""
+        except Exception as te:
+            stderr_tail_error = str(te)
             stderr_tail = ""
+            # spawn error 时 program stderr 可能为空，尝试给 supervisord 主日志做兜底
+            try:
+                supervisord_tail = tail_supervisord_log(80)
+            except Exception:
+                supervisord_tail = ""
 
         resp = {"program": program, "running": running, "pid": pid, "state": state, "raw": raw}
         if stderr_tail:
             resp["stderr_tail"] = stderr_tail
+        if stderr_tail_error:
+            resp["stderr_tail_error"] = stderr_tail_error
+        if supervisord_tail:
+            resp["supervisord_tail"] = supervisord_tail
         return resp
     except Exception as e:
         raise HTTPException(status_code=500, detail=f"读取交易进程状态失败: {e}")
@@ -286,10 +304,23 @@ async def trading_start_for_account(account_id: int, user: Dict[str, Any] = Depe
         return {"message": "已启动", "output": out, "status": {"program": program, "running": running, "pid": pid, "state": state, "raw": raw}}
     except Exception as e:
         tail = ""
+        tail_err = ""
+        status_raw = ""
+        supervisord_tail = ""
         try:
             tail = tail_supervisor(program, "stderr", 120)
-        except Exception:
+        except Exception as te:
+            tail_err = str(te)
             tail = ""
+        try:
+            status_raw = run_supervisorctl(["status", program])
+        except Exception:
+            status_raw = ""
+        if not tail:
+            try:
+                supervisord_tail = tail_supervisord_log(120)
+            except Exception:
+                supervisord_tail = ""
         raise HTTPException(
             status_code=500,
             detail={
@@ -297,6 +328,9 @@ async def trading_start_for_account(account_id: int, user: Dict[str, Any] = Depe
                 "program": program,
                 "hint": "如果是 spawn error，重点看 stderr_tail（常见：python 路径不可执行/依赖缺失/权限/工作目录不存在）",
                 "stderr_tail": tail,
+                "stderr_tail_error": tail_err,
+                "status_raw": status_raw,
+                "supervisord_tail": supervisord_tail,
             },
         )
 
@@ -330,10 +364,23 @@ async def trading_restart_for_account(account_id: int, user: Dict[str, Any] = De
         return {"message": "已重启", "output": out, "status": {"program": program, "running": running, "pid": pid, "state": state, "raw": raw}}
     except Exception as e:
         tail = ""
+        tail_err = ""
+        status_raw = ""
+        supervisord_tail = ""
         try:
             tail = tail_supervisor(program, "stderr", 120)
-        except Exception:
+        except Exception as te:
+            tail_err = str(te)
             tail = ""
+        try:
+            status_raw = run_supervisorctl(["status", program])
+        except Exception:
+            status_raw = ""
+        if not tail:
+            try:
+                supervisord_tail = tail_supervisord_log(120)
+            except Exception:
+                supervisord_tail = ""
         raise HTTPException(
             status_code=500,
             detail={
@@ -341,6 +388,9 @@ async def trading_restart_for_account(account_id: int, user: Dict[str, Any] = De
                 "program": program,
                 "hint": "如果是 spawn error，重点看 stderr_tail（常见：python 路径不可执行/依赖缺失/权限/工作目录不存在）",
                 "stderr_tail": tail,
+                "stderr_tail_error": tail_err,
+                "status_raw": status_raw,
+                "supervisord_tail": supervisord_tail,
             },
         )
 

backend/api/supervisor_account.py

@@ -272,6 +272,85 @@ def tail_supervisor(program: str, stream: str = "stderr", lines: int = 120) -> s
     return run_supervisorctl(["tail", f"-{n}", str(program), s])
 
 
+def _tail_text_file(path: Path, lines: int = 200, max_bytes: int = 64 * 1024) -> str:
+    """
+    读取文本文件末尾（用于 supervisor spawn error 等场景，program stderr 可能为空）。
+    尽量只读最后 max_bytes，避免大文件占用内存。
+    """
+    try:
+        p = Path(path)
+        if not p.exists():
+            return ""
+        size = p.stat().st_size
+        read_size = min(int(max_bytes), int(size))
+        with p.open("rb") as f:
+            if size > read_size:
+                f.seek(-read_size, os.SEEK_END)
+            data = f.read()
+        text = data.decode("utf-8", errors="ignore")
+        # 仅保留最后 N 行
+        parts = text.splitlines()
+        if not parts:
+            return ""
+        n = int(lines or 200)
+        if n < 20:
+            n = 20
+        if n > 500:
+            n = 500
+        return "\n".join(parts[-n:]).strip()
+    except Exception:
+        return ""
+
+
+def _parse_supervisord_logfile_from_conf(conf_path: Path) -> Optional[Path]:
+    """
+    解析 supervisord.conf 中 [supervisord] 的 logfile= 路径。
+    """
+    try:
+        text = conf_path.read_text(encoding="utf-8", errors="ignore")
+    except Exception:
+        return None
+    in_section = False
+    for raw in text.splitlines():
+        line = raw.strip()
+        if not line or line.startswith(";") or line.startswith("#"):
+            continue
+        if re.match(r"^\[supervisord\]\s*$", line, flags=re.I):
+            in_section = True
+            continue
+        if in_section and line.startswith("[") and line.endswith("]"):
+            break
+        if not in_section:
+            continue
+        m = re.match(r"^logfile\s*=\s*(.+)$", line, flags=re.I)
+        if not m:
+            continue
+        val = (m.group(1) or "").strip().strip('"').strip("'")
+        if not val:
+            continue
+        p = Path(val)
+        if not p.is_absolute():
+            p = (conf_path.parent / p).resolve()
+        return p
+    return None
+
+
+def tail_supervisord_log(lines: int = 200) -> str:
+    """
+    读取 supervisord 主日志尾部（spawn error 的根因经常在这里）。
+    可通过环境变量 SUPERVISOR_LOGFILE 指定。
+    """
+    env_p = (os.getenv("SUPERVISOR_LOGFILE") or "").strip()
+    if env_p:
+        return _tail_text_file(Path(env_p), lines=lines)
+    conf = _detect_supervisor_conf_path()
+    if conf and conf.exists():
+        lp = _parse_supervisord_logfile_from_conf(conf)
+        if lp:
+            return _tail_text_file(lp, lines=lines)
+    return ""
+
+
 @dataclass
 class EnsureProgramResult:
     ok: bool

frontend/src/components/AccountSelector.jsx

@@ -22,6 +22,11 @@ const AccountSelector = ({ onChanged }) => {
   useEffect(() => {
     setCurrentAccountId(accountId)
     if (typeof onChanged === 'function') onChanged(accountId)
+    try {
+      window.dispatchEvent(new CustomEvent('ats:account:changed', { detail: { accountId } }))
+    } catch (e) {
+      // ignore
+    }
     // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [accountId])
 

frontend/src/components/ConfigPanel.jsx

@@ -447,6 +447,16 @@ const ConfigPanel = ({ currentUser }) => {
     loadCurrentAccountMeta()
   }, [accountId])
 
+  // 顶部导航切换账号时：即时同步（比 setInterval 更及时）
+  useEffect(() => {
+    const onChanged = (e) => {
+      const next = parseInt(String(e?.detail?.accountId || ''), 10)
+      if (Number.isFinite(next) && next > 0) setAccountId(next)
+    }
+    window.addEventListener('ats:account:changed', onChanged)
+    return () => window.removeEventListener('ats:account:changed', onChanged)
+  }, [])
+
   // 顶部导航切换账号时（localStorage更新），这里做一个轻量同步
   useEffect(() => {
     const timer = setInterval(() => {
@@ -819,7 +829,7 @@ const ConfigPanel = ({ currentUser }) => {
         {/* 我的交易进程（按账号；owner/admin 可启停） */}
         <div className="system-section">
           <div className="system-header">
-            <h3>我的交易进程（当前账号）</h3>
+            <h3>我的交易进程（当前账号 #{accountId}）</h3>
             <div className="system-status">
               <span className={`system-status-badge ${accountTradingStatus?.running ? 'running' : 'stopped'}`}>
                 {accountTradingStatus?.running ? '运行中' : '未运行/未知'}
@@ -863,6 +873,18 @@ const ConfigPanel = ({ currentUser }) => {
               <pre style={{ whiteSpace: 'pre-wrap', marginTop: '8px' }}>{String(accountTradingStatus.stderr_tail || '')}</pre>
             </details>
           ) : null}
+          {accountTradingStatus?.stderr_tail_error ? (
+            <details style={{ marginTop: '8px' }}>
+              <summary style={{ cursor: 'pointer' }}>读取 stderr 失败原因（用于排障）</summary>
+              <pre style={{ whiteSpace: 'pre-wrap', marginTop: '8px' }}>{String(accountTradingStatus.stderr_tail_error || '')}</pre>
+            </details>
+          ) : null}
+          {accountTradingStatus?.supervisord_tail ? (
+            <details style={{ marginTop: '8px' }}>
+              <summary style={{ cursor: 'pointer' }}>supervisord 主日志尾部（spawn error 常见原因在这里）</summary>
+              <pre style={{ whiteSpace: 'pre-wrap', marginTop: '8px' }}>{String(accountTradingStatus.supervisord_tail || '')}</pre>
+            </details>
+          ) : null}
         </div>
 
         {/* 账号密钥（当前账号；owner/admin 可改） */}