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The objective of providing revision management capability to HBase tables is to preserve the functional programming paradigm for the grid. The map/reduce paradigm had proven efficient for the big data and it will be really useful if map-reduce programs could have data from HBase tables as their input. Presently, that is not possible as the data present in HBase is not suitable for repeatable reads. This is due to the fact that HBase assigns its own timestamps to store various revisions of user data. So, it is a good idea to have a centralized component ( revision manager) which could replace the timestamps with more meaningful IDs that end-users could tag on for achieving repeatable reads.

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