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Table 2 Need for Hadoop technology

From: Clustering large datasets using K-means modified inter and intra clustering (KM-I2C) in Hadoop

  Traditional RDBMS Hadoop MapReduce
Size To gigabytes Extends to petabytes
Processing Realtime and batch Batch
Updates Reads and writes many times Writes once and reads many times
Structure Static schema Dynamic schema
Integrity High Low
Scaling Non-linear Linear