Re: Hadoop backend?
От | Josh Berkus |
---|---|
Тема | Re: Hadoop backend? |
Дата | |
Msg-id | 49A44AC4.8040002@agliodbs.com обсуждение исходный текст |
Ответ на | Hadoop backend? (Paul Sheer <paulsheer@gmail.com>) |
Список | pgsql-hackers |
> With a distributed data store, the data would become a logical > object - no adding or removal of machines would affect the data. > This is an ideal that would remove a tremendous maintenance > burden from many sites ---- well, at least the one's I have worked > at as far as I can see. Two things: 1) Hadoop is the wrong technology. It's not designed to support transactional operations. 2) Transactional operations are, in general, your Big Obstacle for doing anything in the way of a distributed storage manager. It's possible you could make both of the above "go away" if you were planning for a DW platform in which transactions weren't important. However, that would have to become an incompatible fork of PostgreSQL. AFAIK, the Yahoo platform does not involve Hadoop at all. --Josh
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