Files
maa-online/systemd/maa-online-server.service
RRRosmontis 7806524279 feat: 增加每日内存回收与 malloc arena 限制
流媒体会话会在 glibc malloc arena 中留下大量不归还操作系统的冷匿名内存,实测单个
服务可累积到 2.5 GB 并占满整个 swap 文件(33 个 64/128 MB 匿名段,空闲时不增长,
随会话单调抬升)。本次从根因与兜底两侧处理:

- systemd/maa-online-server.service: 设置 MALLOC_ARENA_MAX=2,把线程 arena 数量
  从 8xCPU 压到 2,抑制 arena 膨胀
- systemd/maa-daily.service: 单元结束时经 ExecStopPost 重启 API 服务,回收当次会话残留
- systemd/maa-online-recycle.service, maa-online-recycle.timer: 新增每日 03:59(游戏
  每日刷新前)独立回收定时器,错开更新与日常任务窗口,Persistent=false 避免补跑撞车
- bin/maa-online-can-recycle: 回收守卫,检测日常任务(systemd 单元或手工运行)是否
  进行中,是则跳过回收,避免重启打断任务
- bin/maa-online-install-systemd: 安装并启用新增的回收单元
- README.md, user_config/README.md: 补充内存回收机制与定时器说明
2026-09-19 23:58:54 +08:00

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Desktop File

[Unit]
Description=MAA Online cloud game API server
After=network-online.target
Wants=network-online.target
[Service]
Type=simple
ExecStart=__ROOT__/bin/maa-online-server
Restart=always
RestartSec=5
# Belt and braces: never let a proxy environment leak into the cloud gaming
# server (bin/maa-online-server already unsets these).
Environment=NO_PROXY=localhost,127.0.0.1,::1
# Streaming sessions churn large temporaries (video frames, PNG buffers) across
# the asyncio/aiohttp/aiortc thread pool. glibc gives each thread its own 64 MB
# malloc arena and never returns it to the OS, so the service used to ratchet up
# to gigabytes of cold anonymous memory and eventually fill the swap file.
# Capping the arena count keeps the footprint flat.
Environment=MALLOC_ARENA_MAX=2
[Install]
WantedBy=multi-user.target