hbase-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-6799) Store more metadata in HFiles
Date Fri, 19 Apr 2013 21:03:15 GMT

     [ https://issues.apache.org/jira/browse/HBASE-6799?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Lars Hofhansl resolved HBASE-6799.

    Resolution: Won't Fix

Closing this as "Won't fix". Can always reopen.
> Store more metadata in HFiles
> -----------------------------
>                 Key: HBASE-6799
>                 URL: https://issues.apache.org/jira/browse/HBASE-6799
>             Project: HBase
>          Issue Type: Brainstorming
>            Reporter: Lars Hofhansl
> Current we store metadata in HFile:
> * the timerange of KVs
> * the earliest PUT ts
> * max sequence id
> * whether or not this file was created from a major compaction.
> I would like to brainstorm what extra data we need to store to make an HFile self describing.
I.e. it could be backed up to somewhere with external tools (without invoking an HBase server)
can gleam enough information from it to make use of the data inside. Ideally it would also
be nice to be able to recreate .META. from a bunch of HFiles to standup a temporary HBase
instance to process a bunch of HFiles.
> What I can think of:
> * min/max key
> * table
> * column family (or families to be future proof)
> * custom tags (set by a backup tools for example)

This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

View raw message