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https://issues.apache.org/jira/browse/HBASE-15862?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15328885#comment-15328885
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Vladimir Rodionov commented on HBASE-15862:
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Snapshot restore works with arbitrary boundaries. 

If we select truncate option:

First full backup restore can take a long time, because, bulk load tool will 
need to split (align) all HFiles to all boundaries before pushing them to a 
cluster. The second step (M/R job to load all WAL files) will finish pretty 
quickly and no region splits will be afterwords. 

If we select  delete option:
First full backup restore will finish quickly, second step will finish quickly 
as well, but we will have a lot of region splits and major compaction when 
restore finishes.

I vote for truncate as an interim solution.


> Backup - Delete- Restore does not restore deleted data
> ------------------------------------------------------
>
>                 Key: HBASE-15862
>                 URL: https://issues.apache.org/jira/browse/HBASE-15862
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 2.0.0
>            Reporter: Vladimir Rodionov
>            Assignee: Vladimir Rodionov
>              Labels: backup
>             Fix For: 2.0.0
>
>         Attachments: HBASE-15862-v1.patch, HBASE-15862-v2.patch, 
> HBASE-15862-v3.patch
>
>
> This was discovered during testing. If we delete row after full backup and 
> perform immediately restore, the deleted row still remains deleted. 



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