Merge branch 'master' of git.wrede.ca:andreas/heartbeat

- hbdclass: add per-plugin stale timers; clear history and alerts after
  3× heartbeat interval with no PLG data received
- udp: wire stale timer on every PLG message via _make_plugin_stale_callback
- http: persist new OAuth users to config file on first login

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.claude/settings.json

@@ -1,20 +0,0 @@
-{
-  "permissions": {
-    "allow": [
-      "Edit(*)",
-      "Bash(pytest *)",
-      "Bash(python *)",
-      "Bash(python3 *)",
-      "Bash(.venv/bin/pytest *)",
-      "Bash(npm *)",
-      "Bash(git *)",
-      "Bash(ls *)",
-      "Bash(cat *)",
-      "Bash(grep *)",
-      "Bash(find *)",
-      "Bash(mkdir *)",
-      "Bash(touch *)",
-      "Bash(uv *)"
-    ]
-  }
-}

.gitea/workflows/release.yml

@@ -33,7 +33,7 @@ jobs:
       - name: Generate changelog
         id: changelog
         run: |
-          PREV_TAG=$(git tag --sort=-version:refname | grep -v "^${GITHUB_REF#refs/tags/}$" | head -1)
+          PREV_TAG=$(git tag --sort=-version:refname | grep -m 1 -v "^${GITHUB_REF#refs/tags/}$")
           if [ -n "$PREV_TAG" ]; then
             CHANGELOG=$(git log --pretty=format:"- %s" "${PREV_TAG}..HEAD")
           else

.gitignore

@@ -5,6 +5,7 @@ __pycache__/
 *.pyo
 .flake8
 .venv/
+.continue/
 test/
 build/
 dist/

CHANGELOG.md

@@ -0,0 +1,457 @@
+# Changelog
+
+All notable changes to this project are documented here, organized by release.
+
+## [5.3.10]
+
+### Added
+- clear stale plugin data and persist OAuth users to config
+- auto-scale CPU history graph Y axis
+- add CPU usage history graph to CPU Monitor section
+
+### Fixed
+- remove bak file in bumpminor.sh
+
+---
+
+## [5.3.9]
+
+### Added
+- auto-update CHANGELOG and README in bumpminor.sh
+
+---
+
+## [5.3.8]
+
+### Added
+- Wiki home page with overview and getting started guide
+
+### Fixed
+- Release workflow: use `GITHUB_REF`/`GITHUB_OUTPUT` (Gitea Actions uses GitHub-compatible variable names)
+- Release workflow: replace `head -1` with `grep -m 1` to avoid SIGPIPE (exit 141) in changelog step
+
+---
+
+## [5.3.7]
+
+### Added
+- Dark mode with light/dark/auto theme setting
+- UNKNOWN level filter in Log of Events
+- Per-metric grace period input in threshold settings
+- Replace Dynamic DNS YAML editor with a web form
+- Sort hosts, thresholds, and channels alphabetically on settings page
+- Suppress alerts for unwatched hosts
+
+### Fixed
+- Preserve log message order when replaying history on connect
+
+---
+
+## [5.3.6]
+
+### Added
+- MIT license
+
+### Fixed
+- Correct ZFS pool status threshold operator and add per-metric grace
+- Normalize email and domain fields
+- Move dependencies back under `[project]` in pyproject.toml
+
+---
+
+## [5.3.4]
+
+### Fixed
+- Run full reload after HTTP config publish, not just `config.reload()`
+
+---
+
+## [5.3.3]
+
+### Added
+- Replace YAML threshold editor with a form-based UI
+- Replace multi-select fields with dual-panel picker on settings page
+- Nav bar button to publish pending config changes
+- Host, level, and message filters in Log of Events
+
+### Fixed
+- Remove container max-width; stop stretching inputs on settings page
+
+### Removed
+- Legacy `dyndnshosts`/`drophosts` config keys
+
+---
+
+## [5.3.2]
+
+### Added
+- Retry DNS resolution indefinitely; add `-4`/`-6` address-family flags to `hbc` and `hbc_mini`
+- Replace YAML hosts editor with form-based CRUD table
+- Replace YAML notification channel editor with form-based UI
+
+### Fixed
+- Support list-valued `threshold_config` in hosts table
+- Derive hosts threshold config list from config file keys
+- Replace channel checkboxes in Users table with multi-select
+- Support plugin-level `enabled: false` in threshold config
+- Always populate glance strip for all hosts on page load
+- Fetch host info on initial page load
+
+---
+
+## [5.3.1]
+
+### Added
+- Host info section in Host Overview (fetched and rendered on card expand)
+- `GET /api/0/hosts/{hostname}/info` endpoint
+- Show suffix-matched metric coverage in host info threshold table
+- Move `hbc_version` and `hbc_type` out of `os_info` into the host info section
+
+### Fixed
+- Correct `THRESHOLD_DEFAULTS` metric keys and add missing defaults
+
+---
+
+## [5.3.0]
+
+### Added
+- Profile page self-service: change identity, password, and notification channels
+- Settings page editor with form sections, YAML editors, stage/publish/rollback workflow
+- Config read API: `GET /api/0/config`, `/section/{name}`, `/backups`
+- Config write API: `POST /api/0/config`, `POST /api/0/config/rollback`
+- `configio` module for comment-preserving YAML round-trip writes
+- Multi-provider OAuth2 login page and generic provider routes
+- Log login/logout events to the event log with auth source
+
+### Fixed
+- ZFS monitor alerts dropped on restart with wildcard pool thresholds
+- Preserve OAuth users across config reload
+- Config API error handling, consistent 403 messages, deduplicated key lists
+- Validate password body type; coerce `notification_channels` to strings in profile API
+- Preserve OAuth `client_secret` on roundtrip; harden rollback path validation
+
+---
+
+## [5.2.6]
+
+### Added
+- Alerts host-filter field with URL query parameter and notify URL
+- Optional logo on Gitea OAuth login button
+
+### Fixed
+- Show human-readable duration in re-notification messages
+
+---
+
+## [5.2.5]
+
+### Added
+- Alert CRITICAL on degraded or suspended ZFS pools (ONLINE=OK, DEGRADED=WARNING, all else=CRITICAL)
+- Sign in with Gitea button on login page with OAuth2 redirect/callback routes
+- OAuth2 CSRF state management
+- Host owner shown in glance strip for admin users
+- C port of `hbc_mini` (single-file client in `scripts/c/`)
+
+### Fixed
+- Use `base_url` config for OAuth redirect URI to handle reverse proxy deployments
+- Preserve OAuth users across config reload
+- Escape HTML in login page error display
+
+---
+
+## [5.2.4]
+
+### Added
+- `hbc`/`hbc_mini`: `owner` config field included in `os_info`; server applies to host record
+- Server requests InfoPlugin refresh when a host has no plugin data
+- Event log stores structured dicts; filter by user
+
+### Fixed
+- Strip `_status_code` suffix from displayed metric names in threshold alerts
+- Use plain URL in Mattermost plugin metrics link
+- Fall back to `default_owner` when `os_info` has no owner
+
+---
+
+## [5.2.3]
+
+### Added
+- `hbc`/`hbc_mini`: log name and version at startup
+- Show metric name inline with hostname in alerts and notifications
+
+### Fixed
+- Send shutdown message only if a boot message was previously sent; suppress both on restart
+
+---
+
+## [5.2.2]
+
+### Fixed
+- Retry connection on network error instead of permanently dropping it
+- Silence `aiohttp.access` log; strip plugin prefix in alerts UI
+
+---
+
+## [5.2.1]
+
+### Fixed
+- Threshold and logging improvements
+
+---
+
+## [5.2.0]
+
+### Added
+- `nagios` operator for direct exit-code severity mapping
+
+### Fixed
+- Always show `THRESHOLD_DEFAULTS` in Settings threshold config
+
+---
+
+## [5.1.21]
+
+### Added
+- `nagios_runner` improvements and alerts page fixes
+
+---
+
+## [5.1.20]
+
+### Added
+- Generic threshold matching for `nagios_runner` with `{check_name}` display support
+
+### Fixed
+- Reduce default hysteresis from 10% to 2%
+- Show recovery threshold in alerts UI
+
+---
+
+## [5.1.19]
+
+### Added
+- Exclude ZFS ARC from `memory_percent`
+- Add `uptime_seconds` to `cpu_monitor`
+
+### Fixed
+- Send boot/shutdown message on the first open connection, not blindly on the first in list
+
+---
+
+## [5.1.18]
+
+### Added
+- Fetch-based Update/Delete buttons with toast notifications on Host Overview
+
+### Fixed
+- Settings thresholds show correct per-config metrics; miscellaneous `hbc` fixes
+
+---
+
+## [5.1.17]
+
+### Added
+- Owner Update/Delete buttons on Host Overview; purge stale alerts on reload
+- Retry `AsyncConnection.open()` indefinitely; drop IPv6 only on early startup failure
+- Alert pie chart in the nav bar
+
+### Fixed
+- Make Alerts page scrollable
+
+---
+
+## [5.1.16]
+
+### Added
+- Generic `ping_monitor` thresholds; round RTT to nearest ms
+
+---
+
+## [5.1.15]
+
+### Added
+- Link hostnames in Live Dashboard to Host Overview
+- Threshold Configurations section on settings page
+
+### Fixed
+- Suppress notifications on alert de-escalation (e.g. CRITICAL→WARNING)
+- Suppress recover messages for down durations under 4 seconds
+
+---
+
+## [5.1.14]
+
+### Added
+- ZFS pool renderer in Host Overview
+
+---
+
+## [5.1.13]
+
+### Added
+- ZFS monitor plugin
+- Host-level watch flag to suppress notifications
+- Filter Live Dashboard and Host Overview by owner/manager
+- Composable `threshold_config` list for per-host threshold layering
+- Restart on SIGHUP in `hbc` and `hbc_mini`
+
+### Fixed
+- Mask `api_password` and `access_token` in settings page
+
+---
+
+## [5.1.12]
+
+Internal release — no user-visible changes.
+
+---
+
+## [5.1.11]
+
+### Fixed
+- Install under Docker
+- Clean up install script
+
+---
+
+## [5.1.10]
+
+### Fixed
+- Synchronize version in `hbc_mini`
+- Install script no longer overwrites itself
+
+---
+
+## [5.1.9]
+
+### Added
+- Install `hbc_mini` via package or install script
+
+---
+
+## [5.1.8]
+
+### Added
+- Track `hbc` type and version
+
+### Fixed
+- Nav bar position
+
+---
+
+## [5.1.7]
+
+### Added
+- `hbc_mini`: single-file heartbeat client
+
+### Fixed
+- Drop dead connections on protocol error
+
+---
+
+## [5.1.6]
+
+### Fixed
+- Simplify event log usage; fix argument handling
+
+---
+
+## [5.1.5]
+
+### Added
+- Update `hbc` via `hb_install.sh` instead of code patching
+
+---
+
+## [5.1.4]
+
+### Added
+- Redesign Plugin Metrics page as Host Overview
+
+---
+
+## [5.1.3]
+
+### Added
+- Validate absolute command paths at `nagios_runner` init
+- Async subprocess in `nagios_runner` with stderr capture and signal handling
+- `skip_reason` field on `Plugin`; surface in `PluginLoader` init messaging
+
+### Fixed
+- Use `shlex.split()` for `nagios_runner` path validation to handle quoted paths
+- Reconfigure logging to syslog after `daemonize()`
+
+---
+
+## [5.1.2]
+
+### Fixed
+- Plugin config lookup shadowed by `CLIENT_DEFAULTS` plugins key
+- Apply grace period to all threshold alerts before logging/notifying
+- RECOVER routing: use consistent level name and route via alerted channel
+- Early reminder notifications and lost recovery notifications
+- Non-alerting of overdue hosts
+
+### Added
+- Swiss clock widget in the UI
+
+---
+
+## [5.1.1]
+
+### Added
+- SMS and Matrix notification channels
+- CLI commands `stop`, `restart`, and `reload` for `hbd`
+- WebSocket endpoint at `http://.../ws`
+- Mobile HTML pages
+
+### Fixed
+- Profile not updating
+- Sortable columns in tables
+
+---
+
+## [5.1.0]
+
+### Added
+- Ping monitor plugin
+- Persist state to pickle file; restart timers on server restart
+- SIGHUP config reload for `hbd`
+- Renotify on CRITICAL only; persistent user sessions
+- RTT count threshold
+
+### Fixed
+- Bogus notification on new clients
+- Show "overdue" in alerts instead of null
+
+---
+
+## [5.0.12]
+
+### Added
+- User management and settings page
+
+---
+
+## [5.0.10]
+
+### Added
+- Publish package to Gitea PyPI registry
+
+---
+
+## [5.0.9]
+
+### Added
+- Use `SO_TIMESTAMP` for RTT measurement (Linux, FreeBSD, macOS)
+- Persist state to pickle file; restart timers on restart
+
+---
+
+## [5.0.6]
+
+### Added
+- Major codebase refactoring: restructured into client/server components
+- Per-client threshold configuration
+- Display and acknowledge alerts in the UI
+- Proper `hbc` termination; `hbd` config reloadable at runtime

README.md

@@ -20,7 +20,7 @@ A lightweight UDP-based host monitoring system. Monitored hosts run a client (`h
   └────────────────────┘              └────────────────────────────┘
 ```
 
-**Package:** `hbd` v5.3.4
+**Package:** `hbd` v5.3.10
 **Python:** 3.11+
 
 ### Subpackages

hbd/__init__.py

@@ -14,4 +14,4 @@ Install options:
 """
 
 __all__ = ["__version__"]
-__version__ = "5.3.7"
+__version__ = "5.3.10"

hbd/server/hbdclass.py

@@ -297,6 +297,8 @@ class Host:
         self.plugin_retention = 100  # Keep last N samples per plugin
         # Alert state tracking: {metric_path: AlertState}
         self.alert_states = {}
+        # Stale-data timers: {plugin_name: asyncio.TimerHandle}
+        self.plugin_timers = {}
         # User access control
         self.owner: str | None = None       # username of owner
         self.managers: list = []            # usernames with manager role
@@ -483,6 +485,8 @@ class Host:
             self.managers = []
         if not hasattr(self, "monitors"):
             self.monitors = []
+        if not hasattr(self, "plugin_timers"):
+            self.plugin_timers = {}
 
         pass
 
@@ -542,6 +546,34 @@ class Host:
         """
         return self.plugin_data
 
+    def reset_plugin_timer(self, plugin_name, timeout_seconds, callback):
+        """Reset the stale-data timer for a plugin.
+
+        If no new PLG data arrives within timeout_seconds, callback(host, plugin_name)
+        is called so the caller can clear history and alerts.
+        """
+        import asyncio
+        existing = self.plugin_timers.get(plugin_name)
+        if existing and not existing.cancelled():
+            existing.cancel()
+
+        async def _fire():
+            await callback(self, plugin_name)
+
+        try:
+            loop = asyncio.get_event_loop()
+            self.plugin_timers[plugin_name] = loop.call_later(
+                timeout_seconds, lambda: asyncio.create_task(_fire())
+            )
+        except RuntimeError:
+            pass
+
+    def cancel_plugin_timer(self, plugin_name):
+        """Cancel the stale timer for a plugin, if any."""
+        handle = self.plugin_timers.pop(plugin_name, None)
+        if handle and not handle.cancelled():
+            handle.cancel()
+
     # ------------------------------------------------------------------
     # User-role helpers
     # ------------------------------------------------------------------

hbd/server/http.py

@@ -1182,6 +1182,23 @@ async def start(
             profile["full_name"],
             profile["avatar_url"],
         )
+        # Persist new OAuth users to the config file so they survive restarts.
+        # Only write when the user isn't already in the config's users section.
+        if _config_path and not (config.get("users") or {}).get(user.username):
+            try:
+                disk_data = configio_mod.read_roundtrip(_config_path)
+                if not disk_data.get("users"):
+                    disk_data["users"] = {}
+                disk_data["users"][user.username] = {
+                    k: v for k, v in [
+                        ("full_name", user.full_name),
+                        ("avatar", user.avatar),
+                    ] if v
+                }
+                configio_mod.write_config(_config_path, disk_data)
+                logger.info("Persisted OAuth user %r to config", user.username)
+            except Exception as exc:
+                logger.warning("Failed to persist OAuth user %r to config: %s", user.username, exc)
         session_token = users_mod.create_session(user.username)
         eventlog("hbd", "INFO", f"Login: {user.username} via {provider.type}")
         resp = web.HTTPFound("/")

hbd/server/notify.py

@@ -140,7 +140,9 @@ def _send_pushover(channel_cfg: dict, notif: Notification) -> bool:
     if not token or not user:
         logger.warning("pushover: missing token or user")
         return False
-    params: dict = {"token": token, "user": user, "title": notif.title, "message": notif.body}
+    body = "%s: %s" % (notif.title, notif.body)
+    title = ""
+    params: dict = {"token": token, "user": user, "title": title, "message": body}
     if channel_cfg.get("sound"):
         params["sound"] = channel_cfg["sound"]
     if notif.url:

hbd/server/templates/plugins.html

@@ -914,7 +914,7 @@
         let html = '';
         switch (pluginName) {
           case 'os_info':        html = renderOsInfoTable(cached.data); break;
-          case 'cpu_monitor':    html = renderCpuTable(cached.data); break;
+          case 'cpu_monitor':    html = renderCpuTable(hostname, cached.data); break;
           case 'memory_monitor': html = renderMemoryTable(cached.data); break;
           case 'disk_monitor':   html = renderDiskTables(cached.data); break;
           case 'network_monitor':html = renderNetworkTables(cached.data); break;
@@ -926,6 +926,10 @@
 
         html += `<div class="timestamp">Last updated: ${new Date(cached.timestamp * 1000).toLocaleString()}</div>`;
         body.innerHTML = html;
+
+        if (pluginName === 'cpu_monitor') {
+          fetchCpuHistory(hostname).then(samples => renderCpuChart(hostname, samples)).catch(() => {});
+        }
       }
 
       // ── Per-plugin renderers ────────────────────────────────────────────────
@@ -948,7 +952,92 @@
         return html;
       }
 
-      function renderCpuTable(d) {
+      async function fetchCpuHistory(hostname) {
+        const r = await fetch(`/api/0/hosts/${encodeURIComponent(hostname)}/plugins/cpu_monitor?limit=100`);
+        if (!r.ok) return [];
+        const json = await r.json();
+        return json.samples || [];
+      }
+
+      function renderCpuChart(hostname, samples) {
+        const el = document.getElementById(`cpu-chart-${hostname}`);
+        if (!el || !samples.length) return;
+
+        const pts = samples
+          .filter(s => s.data.cpu_percent != null)
+          .map(s => ({ t: s.timestamp, v: s.data.cpu_percent }));
+        if (pts.length < 2) { el.style.display = 'none'; return; }
+
+        const W = 600, H = 80, PAD = { top: 6, right: 8, bottom: 18, left: 28 };
+        const cW = W - PAD.left - PAD.right;
+        const cH = H - PAD.top - PAD.bottom;
+
+        const tMin = pts[0].t, tMax = pts[pts.length - 1].t;
+        const tRange = tMax - tMin || 1;
+        const x = t => PAD.left + ((t - tMin) / tRange) * cW;
+
+        // Auto-scale Y axis with 10% padding, clamped to [0, 100]
+        const vMin = Math.min(...pts.map(p => p.v));
+        const vMax = Math.max(...pts.map(p => p.v));
+        const vRange = vMax - vMin || 1;
+        const vPad = Math.max(vRange * 0.1, 1);
+        const yLow  = Math.max(0,   vMin - vPad);
+        const yHigh = Math.min(100, vMax + vPad);
+        const yRange = yHigh - yLow || 1;
+        const y = v => PAD.top + cH - ((v - yLow) / yRange) * cH;
+
+        // Build polyline points and filled area path
+        const linePoints = pts.map(p => `${x(p.t).toFixed(1)},${y(p.v).toFixed(1)}`).join(' ');
+        const areaPath = `M${x(pts[0].t).toFixed(1)},${(PAD.top + cH).toFixed(1)} ` +
+          pts.map(p => `L${x(p.t).toFixed(1)},${y(p.v).toFixed(1)}`).join(' ') +
+          ` L${x(pts[pts.length-1].t).toFixed(1)},${(PAD.top + cH).toFixed(1)} Z`;
+
+        // Color based on latest absolute CPU %
+        const latest = pts[pts.length - 1].v;
+        const strokeColor = latest > 90 ? '#e53935' : latest > 70 ? '#fb8c00' : '#43a047';
+        const fillColor   = latest > 90 ? '#ffcdd2' : latest > 70 ? '#ffe0b2' : '#c8e6c9';
+
+        // Compute nice tick step for ~3-5 grid lines
+        const rawStep = yRange / 4;
+        const mag = Math.pow(10, Math.floor(Math.log10(rawStep || 1)));
+        const niceStep = [1, 2, 5, 10].map(f => f * mag).find(s => yRange / s <= 5) || mag * 10;
+        const tickStart = Math.ceil(yLow / niceStep) * niceStep;
+        let gridLines = '';
+        for (let v = tickStart; v <= yHigh + 0.001; v += niceStep) {
+          const yy = y(v).toFixed(1);
+          const label = Number.isInteger(v) ? v : v.toFixed(1);
+          gridLines += `<line x1="${PAD.left}" y1="${yy}" x2="${PAD.left + cW}" y2="${yy}" stroke="#e0e0e0" stroke-width="1"/>`;
+          gridLines += `<text x="${(PAD.left - 3).toFixed(1)}" y="${yy}" text-anchor="end" dominant-baseline="middle" font-size="8" fill="#999">${label}</text>`;
+        }
+
+        // X-axis time labels
+        const fmt = ts => {
+          const d = new Date(ts * 1000);
+          return d.toLocaleTimeString([], { hour: '2-digit', minute: '2-digit' });
+        };
+        const xLabels = `
+          <text x="${PAD.left}" y="${H - 2}" text-anchor="start" font-size="8" fill="#999">${fmt(pts[0].t)}</text>
+          <text x="${PAD.left + cW}" y="${H - 2}" text-anchor="end" font-size="8" fill="#999">${fmt(pts[pts.length-1].t)}</text>`;
+
+        el.innerHTML = `<svg viewBox="0 0 ${W} ${H}" preserveAspectRatio="none"
+          style="width:100%;height:${H}px;display:block;">
+          <defs>
+            <clipPath id="cpu-clip-${hostname}">
+              <rect x="${PAD.left}" y="${PAD.top}" width="${cW}" height="${cH}"/>
+            </clipPath>
+          </defs>
+          ${gridLines}
+          <line x1="${PAD.left}" y1="${PAD.top}" x2="${PAD.left}" y2="${PAD.top + cH}" stroke="#ccc" stroke-width="1"/>
+          <line x1="${PAD.left}" y1="${PAD.top + cH}" x2="${PAD.left + cW}" y2="${PAD.top + cH}" stroke="#ccc" stroke-width="1"/>
+          <g clip-path="url(#cpu-clip-${hostname})">
+            <path d="${areaPath}" fill="${fillColor}" opacity="0.6"/>
+            <polyline points="${linePoints}" fill="none" stroke="${strokeColor}" stroke-width="1.5" stroke-linejoin="round"/>
+          </g>
+          ${xLabels}
+        </svg>`;
+      }
+
+      function renderCpuTable(hostname, d) {
         const KEYS = [
           ['cpu_percent',      'CPU Usage',         'bar'],
           ['load_1min',        'Load (1 min)',       'num'],
@@ -966,7 +1055,8 @@
         ];
 
         const handled = new Set(KEYS.map(r => r[0]));
-        let html = '<table class="data-table"><thead><tr><th>Metric</th><th>Value</th></tr></thead><tbody>';
+        let html = `<div id="cpu-chart-${hostname}" style="margin-bottom:8px;"></div>`;
+        html += '<table class="data-table"><thead><tr><th>Metric</th><th>Value</th></tr></thead><tbody>';
         for (const [k, label, fmt] of KEYS) {
           if (!(k in d)) continue;
           const v = d[k];

hbd/server/udp.py

@@ -232,6 +232,23 @@ def _make_timer_callbacks(uname, host, ctx):
     return on_overdue, on_unknown
 
 
+def _make_plugin_stale_callback(uname, ctx):
+    """Return an async callback that clears stale plugin data and its alerts."""
+    msg_to_websockets = ctx.get("msg_to_websockets")
+
+    async def on_plugin_stale(host, plugin_name):
+        host.plugin_data.pop(plugin_name, None)
+        stale_keys = [k for k in host.alert_states if k.startswith(f"{plugin_name}.")]
+        for k in stale_keys:
+            del host.alert_states[k]
+        eventlog(uname, "INFO", f"plugin data stale: {plugin_name}")
+        if msg_to_websockets:
+            msg_to_websockets("plugin_stale", {"host": uname, "plugin": plugin_name})
+            msg_to_websockets("host", host.stateinfo())
+
+    return on_plugin_stale
+
+
 def restore_connection_timers(hbdclass, ctx):
     """Restore overdue timers for all loaded connections after a pickle restore.
 
@@ -372,6 +389,10 @@ def handle_datagram(msg: dict, addr, transport, ctx: dict):
                            if k not in ("ID", "plugin", "id", "name")}
             # Store plugin data with timestamp
             host.add_plugin_data(plugin_name, plugin_data, timestamp=now)
+            # Reset stale timer — 3× the heartbeat interval (min 60 s)
+            stale_timeout = max(host.interval * 3, 60)
+            host.reset_plugin_timer(plugin_name, stale_timeout,
+                                    _make_plugin_stale_callback(uname, ctx))
 
             # If os_info reports an owner and none is configured server-side, apply it
             if plugin_name == "os_info":

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "hbd"
-version = "5.3.7"
+version = "5.3.10"
 description = "Heartbeat monitoring system — client (hbc) and server (hbd)"
 readme = "README.md"
 requires-python = ">=3.11"

scripts/bumpminor.sh

@@ -5,9 +5,23 @@ uv version --bump patch
 VER=$(uv  version  --short)
 sed -i".bak"  "s/__version__ = \"[0-9.]*\"\(.*\)$/__version__ = \"$VER\"\1/" hbd/__init__.py
 sed -i".bak"  "s/__version__ = \"[0-9.]*\"\(.*\)$/__version__ = \"$VER\"\1/" scripts/hbc_mini.py
+sed -i".bak"  "s/\*\*Package:\*\* \`hbd\` v[0-9.]*/\*\*Package:\*\* \`hbd\` v$VER/" README.md
+
+# Update CHANGELOG.md with commits since last tag
+LASTTAG=$(git describe --tags --abbrev=0 2>/dev/null || true)
+ADDED=$(git log "${LASTTAG:+$LASTTAG..}HEAD" --pretty="%s" | grep "^feat:" | sed 's/^feat: /- /')
+FIXED=$(git log "${LASTTAG:+$LASTTAG..}HEAD" --pretty="%s" | grep "^fix:" | sed 's/^fix: /- /')
+{
+    printf "## [%s]\n" "$VER"
+    [ -n "$ADDED" ] && printf "\n### Added\n%s\n" "$ADDED"
+    [ -n "$FIXED" ] && printf "\n### Fixed\n%s\n" "$FIXED"
+    printf "\n---\n\n"
+} > /tmp/changelog_entry.txt
+sed -i".bak" "4r /tmp/changelog_entry.txt" CHANGELOG.md
+rm /tmp/changelog_entry.txt CHANGELOG.md.bak
 
 # commit pyproject.toml
-git commit -m "version $VER" pyproject.toml hbd/__init__.py scripts/hbc_mini.py
+git commit -m "version $VER" pyproject.toml hbd/__init__.py scripts/hbc_mini.py README.md CHANGELOG.md
 git push 
 # tag version
 git tag -a v$VER -m "Version $VER"
@@ -15,3 +29,4 @@ git push --tags
 
 rm hbd/__init__.py.bak
 rm scripts/hbc_mini.py.bak
+rm README.md.bak

scripts/c/hbc_mini.c

@@ -789,7 +789,7 @@ static void plugin_cpu_monitor(conn_t *c, const config_t *cfg) {
  * Plugin: memory_monitor
  * Linux:   /proc/meminfo
  * FreeBSD: sysctl vm.stats.vm.*
- * NetBSD:  sysctl vm.uvmexp (struct uvmexp)
+ * NetBSD:  sysctl vm.uvmexp (struct uvmexp_sysctl)
  * ============================================================ */
 
 /* emit the common kvdict fields and send */
@@ -896,9 +896,9 @@ static void plugin_memory_monitor(conn_t *c, const config_t *cfg) {
 
 static void plugin_memory_monitor(conn_t *c, const config_t *cfg) {
     (void)cfg;
-    struct uvmexp uvm;
+    struct uvmexp_sysctl uvm;
     size_t len = sizeof(uvm);
-    int mib[2] = {CTL_VM, VM_UVMEXP};
+    int mib[2] = {CTL_VM, VM_UVMEXP2};
     if (sysctl(mib, 2, &uvm, &len, NULL, 0) != 0) return;
 
     long long ps   = uvm.pagesize;

scripts/hbc_mini.py

@@ -41,7 +41,7 @@ from pathlib import Path
 from typing import Any, Dict, List, Optional, Tuple
 
 # updated by scripts/bumpminor.sh
-__version__ = "5.3.7"
+__version__ = "5.3.10"
 
 # ---------------------------------------------------------------------------
 # Protocol  (mirrors hbd/common/proto.py)