[ 
https://issues.apache.org/jira/browse/HBASE-11634?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14378121#comment-14378121
 ] 

Nick Dimiduk commented on HBASE-11634:
--------------------------------------

bq. If the client is doing a read-modify-write purely on the client side, there 
is not much we can do since we cannot control the application logic.

What we _could_ do is disable all non-atomic mutation operations on timeline 
tables. It's harsh, but...

> Disallow non-atomic update operations when TIMELINE consistency is enabled
> --------------------------------------------------------------------------
>
>                 Key: HBASE-11634
>                 URL: https://issues.apache.org/jira/browse/HBASE-11634
>             Project: HBase
>          Issue Type: Sub-task
>          Components: Client, Usability
>    Affects Versions: 0.99.0, hbase-10070
>            Reporter: Nick Dimiduk
>
> Something to consider for the HBASE-10070 line of changes. When a client 
> reads a timeline consistent view of data, read-update-write operations are 
> potentially destructive. When a client is accepting TIMELINE reads, we should 
> only allow server-side atomic update operations.
> In a future state, we could offer a CRDT-based data type to further extend 
> the set of write operations that are guaranteed safe under this consistency 
> model.
> I may not have the semantics of the new client API correct, but this is the 
> idea: do what we can to protect users from the major dangers of this relaxed 
> consistency model.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Reply via email to