How many InputSplits is made by a Hadoop Framework?

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Hadoop makes 5 splits as follows:

  • One split for 64K files
  • Two splits for 65MB files, and
  • Two splits for 127MB files

In Hadoop, the number of InputSplits is determined by the Hadoop framework based on the size of the input data and the configured block size. InputSplits are logical divisions of the input data that are processed by individual Mapper tasks in a Hadoop MapReduce job.

The number of InputSplits is not fixed and depends on the size of the input data. Each InputSplit typically corresponds to a block of data in Hadoop Distributed File System (HDFS), and the framework attempts to create splits that are roughly equal in size.

So, the correct answer is that the number of InputSplits is dynamically determined by the Hadoop framework based on the size of the input data and the configured block size.