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https://issues.apache.org/jira/browse/HADOOP-2222?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Billy Pearson updated HADOOP-2222:
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Fix Version/s: 0.17.0
> option to set TTL for columns in hbase
> --------------------------------------
>
> Key: HADOOP-2222
> URL: https://issues.apache.org/jira/browse/HADOOP-2222
> Project: Hadoop
> Issue Type: New Feature
> Components: contrib/hbase
> Reporter: Billy Pearson
> Priority: Minor
> Fix For: 0.17.0
>
>
> 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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