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Lars Hofhansl commented on HBASE-4071: -------------------------------------- Of course you're right Andrew. We shouldn't mix usecases together. What do you think of the "minversions" idea? As long as minversions for a CF is 0 the behavior would be identical to the current behavior. Also maybe what we have in mind is not a common scenario after all, and we shouldn't complicate the core codebase with that. > Data GC: Remove all versions > TTL EXCEPT the last written version > ------------------------------------------------------------------ > > Key: HBASE-4071 > URL: https://issues.apache.org/jira/browse/HBASE-4071 > Project: HBase > Issue Type: New Feature > Reporter: stack > > We were chatting today about our backup cluster. What we want is to be able > to restore the dataset from any point of time but only within a limited > timeframe -- say one week. Thereafter, if the versions are older than one > week, rather than as we do with TTL where we let go of all versions older > than TTL, instead, let go of all versions EXCEPT the last one written. So, > its like versions==1 when TTL > one week. We want to allow that if an error > is caught within a week of its happening -- user mistakenly removes a > critical table -- then we'll be able to restore up the the moment just before > catastrophe hit otherwise, we keep one version only. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira