hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Nick Dimiduk (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-13159) Consider RangeReferenceFiles with transformations
Date Fri, 06 Mar 2015 02:00:43 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13159?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14349785#comment-14349785
] 

Nick Dimiduk commented on HBASE-13159:
--------------------------------------

Pretty cool idea. Would also allow us to have some efficient implementation of non-materialized
views.

> Consider RangeReferenceFiles with transformations
> -------------------------------------------------
>
>                 Key: HBASE-13159
>                 URL: https://issues.apache.org/jira/browse/HBASE-13159
>             Project: HBase
>          Issue Type: Brainstorming
>            Reporter: Lars Hofhansl
>
> Currently we have References used by HalfStoreReaders and HFileLinks.
> For various use cases we have here we have need for a RangeReferences with simple transformation
of the keys.
> That would allow us to map HFiles between regions or even tables without copying any
data.
> We can probably combine HalfStores, HFileLinks, and RangeReferences into a single concept:
> * RangeReference = arbitrary start and stop row, arbitrary key transformation
> * HFileLink = start and stop keys set to the linked file's start/stop key, transformation
= identity
> * (HalfStore) References = start/stop key set according to top or bottom reference, transformation
= identity
> Note this is a *brainstorming* issue. :)
> (Could start with just references with arbitrary start/stop keys, and do transformations
later)



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

Mime
View raw message