You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@hbase.apache.org by "Andrew Kyle Purtell (Jira)" <ji...@apache.org> on 2022/06/12 20:08:00 UTC

[jira] [Updated] (HBASE-5313) Restructure hfiles layout for better compression

     [ https://issues.apache.org/jira/browse/HBASE-5313?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Kyle Purtell updated HBASE-5313:
---------------------------------------
    Fix Version/s:     (was: 3.0.0-alpha-3)

> Restructure hfiles layout for better compression
> ------------------------------------------------
>
>                 Key: HBASE-5313
>                 URL: https://issues.apache.org/jira/browse/HBASE-5313
>             Project: HBase
>          Issue Type: Improvement
>          Components: HFile, io
>            Reporter: Dhruba Borthakur
>            Priority: Major
>
> A HFile block contain a stream of key-values. Can we can organize these kvs on the disk in a better way so that we get much greater compression ratios?
> One option (thanks Prakash) is to store all the keys in the beginning of the block (let's call this the key-section) and then store all their corresponding values towards the end of the block. This will allow us to not-even decompress the values when we are scanning and skipping over rows in the block.
> Any other ideas? 



--
This message was sent by Atlassian Jira
(v8.20.7#820007)