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https://issues.apache.org/jira/browse/HBASE-12321?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14179936#comment-14179936
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Jan Lukavsky commented on HBASE-12321:
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Basically, I want to delete the lastest version of the column. Don't get me
wrong, I *know* that the usage is wrong on the client side (correct usage is to
use {{Delete#deleteColumns}}). What I see as a problem is that everything seems
to be working just fine, except for the fact, that no data gets deleted. The
combination of KeyValue.Type.Delete, HConstants.LATEST_TIMESTAMP and bulk load
is IMHO wrong in all cases and the client should be notfied about it.
> Delete#deleteColumn seems not to work with bulkload
> ---------------------------------------------------
>
> Key: HBASE-12321
> URL: https://issues.apache.org/jira/browse/HBASE-12321
> Project: HBase
> Issue Type: Bug
> Components: Deletes, HFile, mapreduce
> Affects Versions: 0.94.6
> Reporter: Jan Lukavsky
> Priority: Minor
>
> When using call to {{Delete#deleteColumn(byte[], byte[])}} to produce
> KeyValues that are subsequently written to HFileOutputFormat and bulk loaded
> into HBase, the Delete seems to be ignored. The reason for this is likely to
> be the missing (HConstants.LATEST_TIMESTAMP) timestamp in the KeyValue with
> type {{KeyValue.Type.Delete}}. I think the RegionServer than cannot delete
> the contents of the column due to mismatch in the timestamp.
> When using {{Delete#deleteColumns}} everything works fine, because of
> different type {{KeyValue.Type.DeleteColumn}}.
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