Merging upstream version 1.32.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 104 insertions, 0 deletions

diff --git a/ml/Host.h b/ml/Host.h
new file mode 100644
index 000000000..86591d7ae
--- /dev/null
+++ b/ml/Host.h
@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef ML_HOST_H
+#define ML_HOST_H
+
+#include "BitRateWindow.h"
+#include "Config.h"
+#include "Database.h"
+#include "Dimension.h"
+
+#include "ml-private.h"
+
+namespace ml {
+
+class RrdHost {
+public:
+    RrdHost(RRDHOST *RH) : RH(RH) {}
+
+    RRDHOST *getRH() { return RH; }
+
+    unsigned updateEvery() { return RH->rrd_update_every; }
+
+    std::string getUUID() {
+        char S[UUID_STR_LEN];
+        uuid_unparse_lower(RH->host_uuid, S);
+        return S;
+    }
+
+    void addDimension(Dimension *D);
+    void removeDimension(Dimension *D);
+
+    void getConfigAsJson(nlohmann::json &Json) const;
+
+    virtual ~RrdHost() {};
+
+protected:
+    RRDHOST *RH;
+
+    // Protect dimension and lock maps
+    std::mutex Mutex;
+
+    std::map<RRDDIM *, Dimension *> DimensionsMap;
+    std::map<Dimension *, std::mutex> LocksMap;
+};
+
+class TrainableHost : public RrdHost {
+public:
+    TrainableHost(RRDHOST *RH) : RrdHost(RH) {}
+
+    void train();
+
+private:
+    std::pair<Dimension *, Duration<double>> findDimensionToTrain(const TimePoint &NowTP);
+    void trainDimension(Dimension *D, const TimePoint &NowTP);
+};
+
+class DetectableHost : public TrainableHost {
+public:
+    DetectableHost(RRDHOST *RH) : TrainableHost(RH) {}
+
+    void startAnomalyDetectionThreads();
+    void stopAnomalyDetectionThreads();
+
+    template<typename ...ArgTypes>
+    bool getAnomalyInfo(ArgTypes&&... Args) {
+        return DB.getAnomalyInfo(Args...);
+    }
+
+    template<typename ...ArgTypes>
+    bool getAnomaliesInRange(ArgTypes&&... Args) {
+        return DB.getAnomaliesInRange(Args...);
+    }
+
+    void getDetectionInfoAsJson(nlohmann::json &Json) const;
+
+private:
+    void detect();
+    void detectOnce();
+
+private:
+    std::thread TrainingThread;
+    std::thread DetectionThread;
+
+    BitRateWindow BRW{
+        static_cast<size_t>(Cfg.ADMinWindowSize),
+        static_cast<size_t>(Cfg.ADMaxWindowSize),
+        static_cast<size_t>(Cfg.ADIdleWindowSize),
+        static_cast<size_t>(Cfg.ADMinWindowSize * Cfg.ADWindowRateThreshold)
+    };
+
+    CalculatedNumber AnomalyRate{0.0};
+
+    size_t NumAnomalousDimensions{0};
+    size_t NumNormalDimensions{0};
+    size_t NumTrainedDimensions{0};
+
+    Database DB{Cfg.AnomalyDBPath};
+};
+
+using Host = DetectableHost;
+
+} // namespace ml
+
+#endif /* ML_HOST_H */