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https://issues.apache.org/jira/browse/HBASE-10885?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ramkrishna.s.vasudevan updated HBASE-10885:
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Release Note:
Deletes can be specified with Cell Visibility as done for puts.
Cells covered by the delete is found by doing pattern matching.
A deleteFamily issued for row1, f1 with Cell Visibility (A & B) would delete
only those cells of row1 under family f1 which has cell visibility A&B or B&A.
A delete without any cell visibility would only delete those cells that does
not have any cell visibility.
> Support visibility expressions on Deletes
> -----------------------------------------
>
> Key: HBASE-10885
> URL: https://issues.apache.org/jira/browse/HBASE-10885
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 0.98.1
> Reporter: Andrew Purtell
> Assignee: ramkrishna.s.vasudevan
> Priority: Blocker
> Fix For: 0.99.0, 0.98.4, 2.0.0
>
> Attachments:
> 10885-org.apache.hadoop.hbase.security.visibility.TestVisibilityLabelsWithDeletes-output.txt,
> HBASE-10885_0.98_1.patch, HBASE-10885_1.patch, HBASE-10885_2.patch,
> HBASE-10885_branch_1.patch, HBASE-10885_new_tag_type_1.patch,
> HBASE-10885_new_tag_type_2.patch, HBASE-10885_v1.patch,
> HBASE-10885_v12.patch, HBASE-10885_v12.patch, HBASE-10885_v13.patch,
> HBASE-10885_v15.patch, HBASE-10885_v17.patch, HBASE-10885_v17.patch,
> HBASE-10885_v2.patch, HBASE-10885_v2.patch, HBASE-10885_v2.patch,
> HBASE-10885_v3.patch, HBASE-10885_v4.patch, HBASE-10885_v5.patch,
> HBASE-10885_v7.patch, HBASE-10885_v8.patch, HBASE-10885_v9.patch
>
>
> Accumulo can specify visibility expressions for delete markers. During
> compaction the cells covered by the tombstone are determined in part by
> matching the visibility expression. This is useful for the use case of data
> set coalescing, where entries from multiple data sets carrying different
> labels are combined into one common large table. Later, a subset of entries
> can be conveniently removed using visibility expressions.
> Currently doing the same in HBase would only be possible with a custom
> coprocessor. Otherwise, a Delete will affect all cells covered by the
> tombstone regardless of any visibility expression scoping. This is correct
> behavior in that no data spill is possible, but certainly could be
> surprising, and is only meant to be transitional. We decided not to support
> visibility expressions on Deletes to control the complexity of the initial
> implementation.
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