hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12859) Major compaction completion tracker
Date Tue, 27 Jan 2015 18:58:36 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14293969#comment-14293969
] 

Andrew Purtell commented on HBASE-12859:
----------------------------------------

It's more of a policy question. The HConnection interface is marked Public/Stable. For the
client pushback backport I added a "StatisticsHConnection" that extends HConnection and changed
the implementation in HConnectionManager to implement StatisticsHConnection for this reason.
For your changes I don't see a concern, don't add the methods to the interface, just add them
to the implementation, and cast. 

> Major compaction completion tracker
> -----------------------------------
>
>                 Key: HBASE-12859
>                 URL: https://issues.apache.org/jira/browse/HBASE-12859
>             Project: HBase
>          Issue Type: Brainstorming
>            Reporter: Lars Hofhansl
>            Assignee: Lars Hofhansl
>         Attachments: 12859-v1.txt, 12859-v2.txt, 12859-v3.txt, 12859-v4.txt, 12859-v5.txt,
12859-wip-UNFINISHED.txt
>
>
> In various scenarios it is helpful to know a guaranteed timestamp up to which all data
in a table was major compacted.
> We can do that keeping a major compaction timestamp in META.
> A client then can iterate all region of a table and find a definite timestamp, which
is the oldest compaction timestamp of any of the regions.
> [~apurtell], [~ghelmling], [~giacomotaylor].



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

Mime
View raw message