MongoDB Servers

MongoDB provides NoSQL storage for search keys, room mappings, logs, and performance metrics.

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Architecture Diagram

graph TB
    subgraph MONGO_CLUSTER["MongoDB Infrastructure (8 VMs)"]
        subgraph SEARCH_KEYS["Search Key Cache (Cascading Read)"]
            M1["MongoDB-1<br/>10.32.8.51<br/>Primary"]
            M2["MongoDB-2<br/>10.32.8.52<br/>Secondary"]
            M3["MongoDB-3<br/>10.32.8.53<br/>Tertiary"]

            M1 -->|"Try First"| M2
            M2 -->|"If Miss"| M3
        end

        subgraph SPECIALIZED["Specialized MongoDB"]
            M4["MongoDB-Perf<br/>10.32.8.74<br/>216M metrics"]
            M5["MongoDB-Logs<br/>10.32.8.75<br/>162M logs"]
            M6["MongoDB-RoomMap<br/>10.32.8.96<br/>8.5M mappings"]
            M7["MongoDB-SupplierLog<br/>10.32.8.18"]
            M8["MongoDB-Unmapped<br/>10.32.8.101"]
        end
    end

    subgraph API["API Servers"]
        APIS["7 API Servers"]
    end

    APIS -->|"Search Keys"| M1
    APIS -->|"Performance Data"| M4
    APIS -->|"API Logs"| M5
    APIS -->|"Room Mapping"| M6

    style SEARCH_KEYS fill:#90EE90
    style SPECIALIZED fill:#FFE4B5

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Server Inventory

Server	IP Address	Host	Purpose	Documents
MongoDB-1	10.32.8.51	XCP-1	Search Keys (Primary)	~2M
MongoDB-2	10.32.8.52	XCP-2	Search Keys (Secondary)	~2M
MongoDB-3	10.32.8.53	XCP-2	Search Keys (Tertiary)	~1.7M
MongoDB-Perf	10.32.8.74	XCP-3	Performance Metrics	216M
MongoDB-Logs	10.32.8.75	XCP-3	API Request Logs	162M
MongoDB-RoomMap	10.32.8.96	XCP-1	Room Mapping Data	8.5M
MongoDB-SupplierLog	10.32.8.18	XCP-3	Supplier Call Logs	Variable
MongoDB-Unmapped	10.32.8.101	XCP-2	Unmapped Hotel Data	Variable

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Search Key Cascading Read Pattern

sequenceDiagram
    participant API as API Server
    participant M1 as MongoDB-51<br/>(Primary)
    participant M2 as MongoDB-52<br/>(Secondary)
    participant M3 as MongoDB-53<br/>(Tertiary)

    API->>M1: Query Search Key
    alt Found in M1
        M1-->>API: Return cached result
    else Not in M1
        API->>M2: Query Search Key
        alt Found in M2
            M2-->>API: Return cached result
        else Not in M2
            API->>M3: Query Search Key
            alt Found in M3
                M3-->>API: Return cached result
            else Cache Miss
                M3-->>API: Not found - call supplier
            end
        end
    end

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Search Key Configuration

Configuration	Value
Search Key TTL	30-60 minutes
Total Search Keys	~5.7M across 3 servers
Read Pattern	Cascading (51 → 52 → 53)
Write Pattern	Write to all 3

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Document Volume Summary

Database	Documents	Purpose
Search Keys (3 servers)	5.7M	Hotel search caching
Performance Metrics	216M	APM data
API Logs	162M	Request/response logs
Room Mappings	8.5M	Hotel-room relationships
Total	~390M+	All MongoDB servers

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Last Updated: 2025-12-02