feat(UptimeMonitor): implement uptime cache retrieval and update logic for improved monitoring performance

backend/routes/mikrotikConfigRoutes.js

@@ -22,6 +22,7 @@ const NETWORK_CONFIG_KEY = 'network-config.json';
 const UI_SETTINGS_KEY = 'bgp_data/rt_ui_settings.json';
 const PING_CACHE_PREFIX = 'ping-cache/';
 const SPEEDTEST_CACHE_PREFIX = 'speed-test-cache/';
+const UPTIME_CACHE_KEY = 'uptime-monitor-cache/latest.json';
 
 /** Загрузить UI-настройки из S3 (для pingDomain, pingCacheMinutes и др.) */
 async function loadUiSettings() {
@@ -244,11 +245,64 @@ async function testMikrotikConnection(req, res) {
   }
 }
 
+/** Записать результат проверки в кеш Uptime Monitor (S3). Не блокирует ответ. */
+function updateUptimeCache(serverId, entry) {
+  const { ok, lastCheckTs, ms } = entry;
+  return readS3TextObject(UPTIME_CACHE_KEY)
+    .catch(() => ({ body: '{}' }))
+    .then((data) => {
+      let cache = { results: {}, updatedAt: null };
+      try {
+        const parsed = JSON.parse(data?.body || '{}');
+        if (parsed && typeof parsed === 'object' && parsed.results) cache = parsed;
+      } catch (_) {}
+      cache.results[serverId] = { ok, lastCheckTs, ms };
+      cache.updatedAt = Date.now();
+      return writeS3JsonObject(UPTIME_CACHE_KEY, cache);
+    })
+    .catch((e) => console.warn('[uptime] cache write failed:', e?.message));
+}
+
+/**
+ * GET /api/uptime/cache
+ * Возвращает закешированные результаты проверок, если кеш младше TTL из настроек.
+ */
+async function getUptimeCache(req, res) {
+  try {
+    const uiSettings = await loadUiSettings();
+    const ttlSec = Math.max(0, parseInt(uiSettings.uptimeMonitorCacheSeconds, 10) || 120);
+    if (ttlSec === 0) {
+      return res.json({ results: {}, updatedAt: null });
+    }
+    const data = await readS3TextObject(UPTIME_CACHE_KEY).catch(() => null);
+    if (!data?.body) {
+      return res.json({ results: {}, updatedAt: null });
+    }
+    let cache = { results: {}, updatedAt: null };
+    try {
+      const parsed = JSON.parse(data.body);
+      if (parsed && typeof parsed === 'object') cache = parsed;
+    } catch (_) {}
+    const now = Date.now();
+    if (!cache.updatedAt || now - cache.updatedAt > ttlSec * 1000) {
+      return res.json({ results: {}, updatedAt: null });
+    }
+    return res.json({
+      results: cache.results && typeof cache.results === 'object' ? cache.results : {},
+      updatedAt: cache.updatedAt,
+    });
+  } catch (e) {
+    console.error('[uptime] getUptimeCache', e);
+    return res.json({ results: {}, updatedAt: null });
+  }
+}
+
 /**
  * POST /api/uptime/check
  * Проверка доступности одного сервера (jumphost/home). Тип проверки берётся из ui-settings.uptimeMonitorCheckType.
  * Body: { serverId }
  * Returns: { ok: boolean, ms?: number }
+ * Результат пишется в кеш (S3) для отображения при заходе на страницу.
  */
 async function uptimeCheck(req, res) {
   const t0 = Date.now();
@@ -280,6 +334,8 @@ async function uptimeCheck(req, res) {
       await client.print('system/resource');
       ok = true;
       ms = Date.now() - t0;
+      const lastCheckTs = Date.now();
+      updateUptimeCache(serverId, { ok, lastCheckTs, ms });
       return res.json({ ok, ms });
     }
 
@@ -293,6 +349,8 @@ async function uptimeCheck(req, res) {
       );
       if (!iface || (!iface.remoteIp && !iface.localIp)) {
         ms = Date.now() - t0;
+        const lastCheckTs = Date.now();
+        updateUptimeCache(serverId, { ok: false, lastCheckTs, ms });
         return res.json({ ok: false, ms, error: 'Нет туннеля с внутренним адресом для этого сервера' });
       }
       const target = iface.serverId === serverId || iface.serverId === server.ip || iface.serverId === server.dns
@@ -301,15 +359,21 @@ async function uptimeCheck(req, res) {
       const gatewayIp = target;
       if (!target) {
         ms = Date.now() - t0;
+        const lastCheckTs = Date.now();
+        updateUptimeCache(serverId, { ok: false, lastCheckTs, ms });
         return res.json({ ok: false, ms, error: 'Нет целевого адреса для пинга' });
       }
       try {
         const result = await runPingViaRouter(serverId, gatewayIp, target, 3);
         ms = Date.now() - t0;
         ok = typeof result.avgMs === 'number';
+        const lastCheckTs = Date.now();
+        updateUptimeCache(serverId, { ok, lastCheckTs, ms: ok ? result.avgMs : ms });
         return res.json({ ok, ms: ok ? result.avgMs : ms });
       } catch (err) {
         ms = Date.now() - t0;
+        const lastCheckTs = Date.now();
+        updateUptimeCache(serverId, { ok: false, lastCheckTs, ms });
         return res.json({ ok: false, ms, error: err?.message || String(err) });
       }
     }
@@ -324,11 +388,15 @@ async function uptimeCheck(req, res) {
       const sourceServer = others[0];
       if (!sourceServer) {
         ms = Date.now() - t0;
+        const lastCheckTs = Date.now();
+        updateUptimeCache(serverId, { ok: false, lastCheckTs, ms });
         return res.json({ ok: false, ms, error: 'Нет другого jumphost для внешнего пинга' });
       }
       const targetIp = server.ip || server.extIp;
       if (!targetIp) {
         ms = Date.now() - t0;
+        const lastCheckTs = Date.now();
+        updateUptimeCache(serverId, { ok: false, lastCheckTs, ms });
         return res.json({ ok: false, ms, error: 'У сервера нет внешнего IP' });
       }
       const sourceId = sourceServer.id || sourceServer.dns || sourceServer.ip;
@@ -336,14 +404,20 @@ async function uptimeCheck(req, res) {
         const result = await runPingViaRouter(sourceId, null, targetIp, 3);
         ms = Date.now() - t0;
         ok = typeof result.avgMs === 'number';
+        const lastCheckTs = Date.now();
+        updateUptimeCache(serverId, { ok, lastCheckTs, ms: ok ? result.avgMs : ms });
         return res.json({ ok, ms: ok ? result.avgMs : ms });
       } catch (err) {
         ms = Date.now() - t0;
+        const lastCheckTs = Date.now();
+        updateUptimeCache(serverId, { ok: false, lastCheckTs, ms });
         return res.json({ ok: false, ms, error: err?.message || String(err) });
       }
     }
 
     ms = Date.now() - t0;
+    const lastCheckTs = Date.now();
+    updateUptimeCache(serverId, { ok: false, lastCheckTs, ms });
     return res.json({ ok: false, ms });
   } catch (error) {
     const ms = Date.now() - t0;
@@ -1462,4 +1536,5 @@ module.exports = {
   getAddressLists,
   applyAddressListSummary,
   uptimeCheck,
+  getUptimeCache,
 };

backend/server.js

@@ -471,6 +471,7 @@ app.get('/api/mikrotik/address-lists', mikrotikConfigRoutes.getAddressLists);
 app.post('/api/mikrotik/address-lists/apply-summary', writeLimiter, mikrotikConfigRoutes.applyAddressListSummary);
 
 // === UPTIME MONITOR (проверка доступности: http / internal-ping / external-ping из настроек) ===
+app.get('/api/uptime/cache', mikrotikConfigRoutes.getUptimeCache);
 app.post('/api/uptime/check', writeLimiter, mikrotikConfigRoutes.uptimeCheck);
 
 // === TRAFFIC STATS (MikroTik interfaces by jumphost) ===

frontend/src/SettingsPage.jsx

@@ -86,6 +86,7 @@ export default function SettingsPage() {
   const [trafficInterfacesError, setTrafficInterfacesError] = useState('');
   const [uptimeMonitorIntervalSeconds, setUptimeMonitorIntervalSeconds] = useState('120');
   const [uptimeMonitorCheckType, setUptimeMonitorCheckType] = useState('http');
+  const [uptimeMonitorCacheSeconds, setUptimeMonitorCacheSeconds] = useState('120');
   const [serversList, setServersList] = useState([]);
   const [sidebarSearch, setSidebarSearch] = useState('');
   const [activeSection, setActiveSection] = useState(() => {
@@ -260,6 +261,9 @@ export default function SettingsPage() {
         setUptimeMonitorCheckType(
           checkType === 'internal-ping' || checkType === 'external-ping' ? checkType : 'http'
         );
+        setUptimeMonitorCacheSeconds(
+          data?.uptimeMonitorCacheSeconds != null ? String(data.uptimeMonitorCacheSeconds) : '120'
+        );
         const raw = data?.trafficInterfaces;
         setTrafficInterfacesSelected(
           Array.isArray(raw)
@@ -370,6 +374,10 @@ export default function SettingsPage() {
           uptimeMonitorCheckType === 'internal-ping' || uptimeMonitorCheckType === 'external-ping'
             ? uptimeMonitorCheckType
             : 'http',
+        uptimeMonitorCacheSeconds: Math.max(
+          0,
+          parseInt(uptimeMonitorCacheSeconds, 10) || 120
+        ),
         trafficInterfaces: Array.isArray(trafficInterfacesSelected)
           ? trafficInterfacesSelected.map((p) => ({
               serverKey: p.serverKey,
@@ -762,6 +770,20 @@ export default function SettingsPage() {
                       HTTP: подключение к RouterOS API. Внутренний: пинг через туннель (как на карте сети). Внешний: пинг внешнего IP с другого jumphost.
                     </div>
                   </div>
+                  <div className="col-md-6">
+                    <FormField
+                      label="Кеш результатов (сек)"
+                      name="uptimeMonitorCacheSeconds"
+                      type="number"
+                      value={uptimeMonitorCacheSeconds}
+                      onChange={setUptimeMonitorCacheSeconds}
+                      placeholder="120"
+                      helpText="При заходе на страницу показываются последние проверки, если кеш младше этого срока (0 — не показывать кеш)."
+                      disabled={saving}
+                      min={0}
+                      max={86400}
+                    />
+                  </div>
                 </div>
               </>
               )}

frontend/src/UptimeMonitorPage.jsx

@@ -23,7 +23,7 @@ import PageHeader from './components/PageHeader.jsx';
 import { formatRelative } from './lib/datetime.js';
 
 const DEFAULT_CHECK_INTERVAL_SEC = 120;
-const DELAY_BETWEEN_CHECKS_MS = 1500;
+const PARALLEL_CHECKS = 4; // количество одновременных проверок
 const HISTORY_MAX = 500;
 const STORAGE_KEY = 'uptime-monitor-history';
 
@@ -90,8 +90,8 @@ export default function UptimeMonitorPage() {
   const [historyMap, setHistoryMap] = useState(loadHistoryFromStorage);
   const [selectedServerId, setSelectedServerId] = useState(null);
   const [checkIntervalSeconds, setCheckIntervalSeconds] = useState(DEFAULT_CHECK_INTERVAL_SEC);
-  /** serverId, для которого сейчас идёт проверка — показываем «Проверка…» в строке */
-  const [currentCheckingServerId, setCurrentCheckingServerId] = useState(null);
+  /** serverId, по которым сейчас идёт проверка — показываем «Проверка…» в строке (до PARALLEL_CHECKS одновременно) */
+  const [currentCheckingServerIds, setCurrentCheckingServerIds] = useState([]);
   const intervalRef = useRef(null);
   const checkingRef = useRef(false);
 
@@ -128,44 +128,66 @@ export default function UptimeMonitorPage() {
     fetchServers();
   }, [fetchServers]);
 
+  // При заходе на страницу подставляем кеш — сразу видны последние проверки
+  useEffect(() => {
+    if (jumphosts.length === 0) return;
+    api.get('/uptime/cache')
+      .then(({ data }) => {
+        if (data?.results && typeof data.results === 'object' && Object.keys(data.results).length > 0) {
+          setStatusMap((prev) => ({ ...prev, ...data.results }));
+        }
+      })
+      .catch(() => {});
+  }, [jumphosts]);
+
   const checkIntervalMs = checkIntervalSeconds * 1000;
 
+  /** Параллельный запуск проверок (до PARALLEL_CHECKS одновременно), результат по мере готовности */
   const runChecks = useCallback(async () => {
     if (jumphosts.length === 0) return;
     if (checkingRef.current) return;
     checkingRef.current = true;
     setChecking(true);
-    for (const server of jumphosts) {
-      const serverId = server.id || server.dns || server.ip;
-      if (!serverId) continue;
-      setCurrentCheckingServerId(serverId);
-      const t0 = Date.now();
-      let ok = false;
-      let ms = null;
-      try {
-        const { data: checkData } = await api.post('/uptime/check', { serverId });
-        ok = checkData?.ok === true;
-        ms = typeof checkData?.ms === 'number' ? checkData.ms : Date.now() - t0;
-      } catch (_) {
-        ms = Date.now() - t0;
+    setCurrentCheckingServerIds([]);
+    let index = 0;
+    const getNext = () => {
+      const i = index++;
+      return i < jumphosts.length ? jumphosts[i] : null;
+    };
+    const checkOne = async () => {
+      let server;
+      while ((server = getNext()) != null) {
+        const serverId = server.id || server.dns || server.ip;
+        if (!serverId) continue;
+        setCurrentCheckingServerIds((prev) => [...prev, serverId]);
+        const t0 = Date.now();
+        let ok = false;
+        let ms = null;
+        try {
+          const { data: checkData } = await api.post('/uptime/check', { serverId });
+          ok = checkData?.ok === true;
+          ms = typeof checkData?.ms === 'number' ? checkData.ms : Date.now() - t0;
+        } catch (_) {
+          ms = Date.now() - t0;
+        }
+        const lastCheckTs = Date.now();
+        const entry = { ts: lastCheckTs, ok, ms };
+        setStatusMap((prev) => ({ ...prev, [serverId]: { ok, lastCheckTs } }));
+        setHistoryMap((prev) => {
+          const list = Array.isArray(prev[serverId]) ? prev[serverId] : [];
+          const merged = [...list, entry].slice(-HISTORY_MAX);
+          return { ...prev, [serverId]: merged };
+        });
+        setCurrentCheckingServerIds((prev) => prev.filter((id) => id !== serverId));
       }
-      const lastCheckTs = Date.now();
-      const entry = { ts: lastCheckTs, ok, ms };
-      // Обновляем UI сразу после каждой проверки — результат виден по мере прохождения тестов
-      setStatusMap((prev) => ({ ...prev, [serverId]: { ok, lastCheckTs } }));
-      setHistoryMap((prev) => {
-        const list = Array.isArray(prev[serverId]) ? prev[serverId] : [];
-        const merged = [...list, entry].slice(-HISTORY_MAX);
-        return { ...prev, [serverId]: merged };
-      });
-      setCurrentCheckingServerId(null);
-      await new Promise((r) => setTimeout(r, DELAY_BETWEEN_CHECKS_MS));
-    }
-    setCurrentCheckingServerId(null);
+    };
+    await Promise.all(Array.from({ length: PARALLEL_CHECKS }, checkOne));
+    setCurrentCheckingServerIds([]);
     checkingRef.current = false;
     setChecking(false);
   }, [jumphosts]);
 
+  // Автопроверка по интервалу в фоне (параллельно с другими проверками)
   useEffect(() => {
     if (jumphosts.length === 0) return;
     runChecks();
@@ -278,28 +300,28 @@ export default function UptimeMonitorPage() {
                             </div>
                           </td>
                           <td>
-                            {currentCheckingServerId === id && (
+                            {currentCheckingServerIds.includes(id) && (
                               <span className="badge bg-blue-lt text-blue">
                                 <span className="spinner-border spinner-border-sm me-1" role="status" aria-hidden="true" />
                                 Проверка…
                               </span>
                             )}
-                            {currentCheckingServerId !== id && status == null && (
+                            {!currentCheckingServerIds.includes(id) && status == null && (
                               <span className="badge bg-secondary">—</span>
                             )}
-                            {currentCheckingServerId !== id && status?.ok === true && (
+                            {!currentCheckingServerIds.includes(id) && status?.ok === true && (
                               <span className="badge bg-success-lt text-success">
                                 <IconCircleCheck size={14} /> Доступен
                               </span>
                             )}
-                            {currentCheckingServerId !== id && status?.ok === false && (
+                            {!currentCheckingServerIds.includes(id) && status?.ok === false && (
                               <span className="badge bg-danger-lt text-danger">
                                 <IconCircleX size={14} /> Недоступен
                               </span>
                             )}
                           </td>
                           <td className="text-muted">
-                            {currentCheckingServerId === id
+                            {currentCheckingServerIds.includes(id)
                               ? '…'
                               : status?.lastCheckTs
                                 ? formatRelative(status.lastCheckTs)