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How Versioning is Maintained in HBase ?

Ans : HBase support to store multiple versions of each cell with the help of timestamps for each of the versions and storing them in descending order. Each timestamp is long integer value measured in milliseconds. It records the time that has passed since midnight.

 

When you put a value into HBase, you have the coice of either explicitely providing a timestamp or omitting that value, which then can be assigned bi the RegionServer when the put operation is performed.

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