• Run the global-index-size to estimate the size of two separate indexes, both with 10,000,000 keys but with differing average key sizes. The configured number of keys is assumed to be equal to the actual number of keys:
    $ bin/global-index-size --numKeys 10000000 \ 
      --averageKeySize 11 --numKeys 10000000 \
      --averageKeySize 15    
    
    Num Keys : Cfg. Num Keys : Avg. Key Size : Est. Memory Size
    ---------:---------------:---------------:----------------- 
    10000000 : 10000000      : 11            : 159 mb
    10000000 : 10000000      : 15            : 197 mb