Allow CF to retain deleted rows
-------------------------------
Key: HBASE-4536
URL: https://issues.apache.org/jira/browse/HBASE-4536
Project: HBase
Issue Type: Sub-task
Components: regionserver
Affects Versions: 0.92.0
Reporter: Lars Hofhansl
Assignee: Lars Hofhansl
Fix For: 0.92.0, 0.94.0
Parent allows for a cluster to retain rows for a TTL or keep a minimum number
of versions.
However, if a client deletes a row all version older than the delete tomb stone
will be remove at the next major compaction (and even at memstore flush - see
HBASE-4241).
There should be a way to retain those version to guard against software error.
I see two options here:
1. Add a new flag HColumnDescriptor. Something like "RETAIN_DELETED".
2. Folds this into the parent change. I.e. keep minimum-number-of-versions of
versions even past the delete marker.
#1 would allow for more flexibility. #2 comes somewhat naturally with parent
(from a user viewpoint)
Comments? Any other options?
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
