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https://issues.apache.org/jira/browse/HBASE-5241?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13209533#comment-13209533
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Lars Hofhansl commented on HBASE-5241:
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@Ted: Fair enough.
Here's another thing that will break: Master-Master replication. The
memstoreTSs generated by the regionserver have no meaning w.r.t. to each other.
Also, since the replication sink accesses the replicated cluster through the
normal API we need to add (public?) APIs to pass the memstoreTS through.
And I can already see folks who want to manipulate the memstoreTS from the
outside, bringing us back to where we are.
> Deletes should not mask Puts that come after it.
> ------------------------------------------------
>
> Key: HBASE-5241
> URL: https://issues.apache.org/jira/browse/HBASE-5241
> Project: HBase
> Issue Type: Improvement
> Reporter: Amitanand Aiyer
> Attachments: HBASE-5241.D1731.1.patch, HBASE-5241.D1731.2.patch,
> HBASE-5241.D1731.3.patch
>
>
> Suppose that we have a delete row, and then followed by the put. The delete
> row
> can mask the put, unless there was a major compaction in between.
> Now that we are flushing the memstoreTS to disk, along with the KVs, we
> should be able
> to differentiate whether or not the Put happened after the Delete and offer
> better
> delete semantics.
> Couldn't find a pre-existing JIRA that already discusses this, so creating
> one.
> Seems related to https://issues.apache.org/jira/browse/HBASE-2406, but is not
> quite the same.
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