Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Threaded View
HBase >> mail # user >> TTL for cell values


Copy link to this message
-
TTL for cell values
Hi all,

Quick clarification on TTL for cells. The concept makes sense (instead of "keep 3 versions" you say "keep versions more recent than time T"). But, if there's only 1 value in the cell, and that value is older than the TTL, will it also be deleted?

If so, has there ever been discussion of a "TTL except for most recent" option? (i.e. you want the current version to be permanently persistent, but also want some time-based range of version history, so you can peek back and get consistent snapshots within the last hour, 6 hours, 24 hours, etc). TTL seems perfect for this, but not if it'll chomp the current version of cells too! :)

Thanks!
Ian