I need this feature because I'd like old data to expire after X days. I now see that I can use HColumnDescriptor.setTimeToLive(int timeToLive). So, my question is what is the granularity of the "timeToLive" parameter (Days / Hours/ Second) ?
Thanks -Yair -----Original Message----- From: Dingding Ye [mailto:[EMAIL PROTECTED] Sent: Wednesday, October 15, 2008 10:43 AM To: [email protected] Subject: Re: Deleting old versions from a table Why do you want to do that? I think limited the column family with VERSIONS is enough. On Wed, Oct 15, 2008 at 11:24 PM, Yair Even-Zohar <[EMAIL PROTECTED]>wrote: > I would like to delete old versions from a table on a daily basis and am > thinking to implement: > > > > 1) Run a map/reduce (similar to RowCounter) and for each rowid, execute > a deleteall(rowed, timestamp) > > 2) Similar to (1), but with a scanner. I could also write a filter to > filter retrieve only rowids that have data older then timestamp. > > > > Before I start writing code, I would like to know if there is an > existing process to delete old data? > > > > Thanks > > -Yair > > > >
