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https://issues.apache.org/jira/browse/HBASE-47?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bryan Duxbury updated HBASE-47:
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Component/s: regionserver
hql
> 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
>
> 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.
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