import subprocess
# 从 server 错误日志里找供应商切换的痕迹
log_paths = [
    "/data/ai/audio/server/.pm2/logs/server-error.log",
    "/data/ai/audio/server/.pm2/logs/server-out.log",
    "/var/log/audio/server.log",
]
for p in log_paths:
    print(f"\n=== {p} ===")
    r = subprocess.run(
        ["ssh", "aliyunos4", f"ls -la {p} 2>&1 | head -3; echo ---; tail -200 {p} 2>&1 | grep -E '切换|熔断|exhaust|switch|fallback|供应商|circuit|timeout|timed' | tail -20"],
        capture_output=True, text=True
    )
    print(r.stdout[:2000])
    if r.stderr:
        print("STDERR:", r.stderr[:500])