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From Jean-Daniel Cryans <jdcry...@apache.org>
Subject Re: How does HBase ensure strong consistency?
Date Fri, 23 Jul 2010 19:59:36 GMT
See http://hbase.apache.org/docs/r0.89.20100621/acid-semantics.html

But, "Please note that this is not true _across rows_ for multirow
batch mutations." is actually untrue for 0.89 since
https://issues.apache.org/jira/browse/HBASE-2353 (wasn't reflected in
that document).

Hope that helps,

J-D

On Fri, Jul 23, 2010 at 12:45 PM, Samuru Jackson
<samurujackson@googlemail.com> wrote:
> Hi,
>
> I'm looking for a document or anything like that, that describes how
> HBase ensures a strong consistency.
>
> I understand that in theory this is achieved by replicating data. Does
> that really mean that whenever I perform a put() the return comes only
> after the replication has been conducted?
>
> I'm wondering what happens if I use put(List<Put>). How do I know
> which put elements have been inserted and which have failed?
>
> Thx!
>
> /SJ
>

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