hbase-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Bryan Duxbury (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-47) option to set TTL for columns in hbase
Date Tue, 06 May 2008 20:28:55 GMT

    [ https://issues.apache.org/jira/browse/HBASE-47?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12594696#action_12594696
] 

Bryan Duxbury commented on HBASE-47:
------------------------------------

This newest patch applies cleanly and tests all pass. Personally, I'm +1 to commit. I'd like
for Stack or Jim to take a look at it before we commit it. 

Thanks again for this really great patch, Andrew. You've knocked out a really ambitious bit
of work here.

> option to set TTL for columns in hbase
> --------------------------------------
>
>                 Key: HBASE-47
>                 URL: https://issues.apache.org/jira/browse/HBASE-47
>             Project: Hadoop HBase
>          Issue Type: New Feature
>          Components: hql, regionserver
>            Reporter: Billy Pearson
>            Priority: Minor
>         Attachments: hbase-ttl-0.2-r652401.patch, hbase-ttl-0.2-r652725.patch, hbase-ttl-0.2-r652919.patch
>
>
> I would like to see the option to have a TTL on the columns in hbase this feature could
be helpfully in removing stale data from large datasets with out havening to do a full scan
of the dataset and then issuing deletes.
> Example 
> Say I am crawling pages and only refreshing pages based on a set score and some pages
doe not get updated over X days the old version of the page gets removed from the data set.

> Say I am striping out links form html and storing them say a link is removed from a page
then I would need to issue a delete statement to remove that links form the data set with
a ttl the link data would remove its self if not updated in x secs. These are just examples
based on crawling like nutch but I can foresee many apps using this option. 
> This is a feature in bigtables thats is handled when bigtable does garbage-collection.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message