2026-03-31 Memory Flush

User asked to find the previously configured server health scheduled task and change it from hourly to four times daily at 00:00, 06:00, 12:00, and 18:00.
Investigation confirmed the active mechanism is not system crontab; current user crontab is empty and the effective scheduler is OpenClaw's built-in cron task.
Relevant reporting script exists at /home/sinlee/.openclaw/workspace/scripts/server-health-report.sh.
HEARTBEAT.md already reflected four scheduled times, but user wanted the real task verified.
Confirmed OpenClaw cron task ID 990700ff-be06-44c5-be10-19eaf3ed0af9 is already scheduled as 0 6,12,18,0 * * *, i.e. exactly 00:00 / 06:00 / 12:00 / 18:00 daily.
Task currently targets Telegram chat -1003834524994, topic 4.
Noted minor inconsistency: task display/name still says Server health report every 30m, but actual schedule is already the four-times-daily one.

2026-03-31 星期二 (Asia/Hong_Kong)

用户已完成新版 OpenClaw Telegram 群/topic 配置调整。
当前在 Telegram 群“龙虾指挥部” topic 4 中，机器人已经可以在不被 @ 提及的情况下正常回复。
相关现有配置特征：
- channels.telegram.groups.-1003834524994.requireMention = false
- channels.telegram.groups.-1003834524994.topics.4.requireMention = false
- channels.telegram.groupPolicy = allowlist
- channels.telegram.groupAllowFrom 已包含用户 975333652
说明新版 2026.3.23-2 下，群/topic 的免艾特响应链路已经打通。

用户反馈机器人“收不到图片”。
排查日志后确认：不是 Telegram 消息没到，而是 OpenClaw 在下载 Telegram 图片文件时被 URL fetch 安全策略拦截。
关键现象：日志中出现类似
- blocked URL fetch (url-fetch) target=https://api.telegram.org/file/bot... reason=Blocked: resolves to private/internal/special-use IP address
当前判断：
- 文字链路正常；
- 媒体链路在下载 api.telegram.org/file/... 时被安全检查阻断；
- 高概率与宿主机 DNS/hosts/代理解析结果，或当前版本 URL 安全判定过严有关。
用户明确希望走“方案 2”（通过 OpenClaw 配置放行/修复），后续应继续根据本地新版文档核对是否存在正式支持的 URL fetch 放行键名，再决定是否修改配置。

2026-03-31 凌晨用户反馈主机风扇转速明显加快。
排查结果：OpenClaw 本身不是主因。
当时资源占用最高的进程：
- ffmpeg（Jellyfin 转码路径）约 101% CPU
- baidunetdisk 约 21% CPU
- qemu-system-x86_64 约 7% CPU
- OpenClaw 自身约 0.4% CPU
系统整体负载并未爆满：
- load average 约 1.59 / 1.47 / 1.76
- 主机有 16 CPU
- CPU 平均空闲仍约 89.91%
结论：更像是 Jellyfin 正在进行实时转码/媒体处理，带动风扇升速，而不是整机高压或 OpenClaw 失控。