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https://issues.apache.org/jira/browse/HBASE-12859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14294045#comment-14294045
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Lars Hofhansl commented on HBASE-12859:
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Good question what "stable" means. We could define it to mean "we won't remove
of break existing stuff from/in it".
In any case we know we can safely do this:
# get this into master
# get this in 1.1
# in 1.0 we only change the base classes and not the interfaces (need to check
how easy that is to do with the new admin interface, since the interfaces are
intertwined with PB a bit)
# ditto for 0.98.
We can also choose to simply not do #3 and #4 for now.
+1 on master and 1.1?
> Major compaction completion tracker
> -----------------------------------
>
> Key: HBASE-12859
> URL: https://issues.apache.org/jira/browse/HBASE-12859
> Project: HBase
> Issue Type: Brainstorming
> Reporter: Lars Hofhansl
> Assignee: Lars Hofhansl
> Attachments: 12859-v1.txt, 12859-v2.txt, 12859-v3.txt, 12859-v4.txt,
> 12859-v5.txt, 12859-wip-UNFINISHED.txt
>
>
> In various scenarios it is helpful to know a guaranteed timestamp up to which
> all data in a table was major compacted.
> We can do that keeping a major compaction timestamp in META.
> A client then can iterate all region of a table and find a definite
> timestamp, which is the oldest compaction timestamp of any of the regions.
> [~apurtell], [~ghelmling], [~giacomotaylor].
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