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Server - Coggle Diagram

- - - - Reduce latency
      - Save cpu&Bandwidth
      - Better User experience
      - High Cost for HW
      - Client +Server driven
      - High throughout
  - - - Benenfit
        
        Reduce cost
        
        Reduce code complexity
        
        Increase Stability
        
        Enhance scaling
      - Tools
        
        Kafaka
        
        Rabbit MQ
        
        Active MQ
  - - - MD5
      - SHA1
      - SHA256
  - - - save computation heavy data
      - save database/network call
      - common data/recently used data(don't change often)
      - stores in RAM /SSD
    - - high consistency
      - heavy write/Read once
      - low repetition
    - - time based(ttl, time to leave)
      - size based(fifo,LRU,LFU,LFRU)
    - - size
      - latency
      - cache hit rate
  - - - open tsp,influx tv,
    - - hadoop
    - - Yes
        
        atomic, consistent, isolated, and durable (ACID)
        
        yes
        
        RDMD: mysql, sql server
      - No
        
        increase document types/ in crease queries type/ a lot attributes
        
        Document DB: mango DB
        
        finite query + increasing data(like uber)
        
        columnar db (Cassandra,HBase )