Atomic auto increment of fields about massive_record HOT 1 CLOSED

This kinda sucks. I have not figured out a way in Thrift to store int values in a cell, as it's mutation object seems to only support string values. As far as I understand it, hbase itself supports int values.

The plan was to to.. well, be able to increment integers in an atomic matter as such that we could guarantee that the number we got back was only used once. As long as we are only able to put strings into cells then we'll not be able to generate nice sequenze with natural numbers by this atomicIncrement (please correct me if I'm wrong :-) ). Next step was to build a little id-factory-for-tables which keept track of sequences per table which in turn could be used to auto-generate the next id / key for a given table. For instance by the User table where we need some simple way if internally identify and reference a user by a small number.

I have implemented at least an increment method (found here: 99d271e), but it is not atomic (Read the comment of the method). I'll go on for now and make the id-factory-for-tables, but it's returned IDs will not be guaranteed to be unique if calls are made to it on the exactly same time..

from massive_record.