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What happens when I insert empty column families in cassandra. How many memtables and sstables will be created ?

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  • You mean, create table with no data?
    – Alex Ott
    Jan 11, 2019 at 9:55
  • yes I am inserting empty records with only row key and no value.
    – Milindkumar Shinalkar
    Jan 11, 2019 at 10:03

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This depends on how many inserts you will perform, because you still need to keep the data for primary key in the memory, even if all other columns are empty... SSTables will be generated when your data fill memtable, or when you issue nodetool flush command.

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