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https://issues.apache.org/jira/browse/HBASE-25429?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17253342#comment-17253342
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Viraj Jasani commented on HBASE-25429:
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This seems duplicate of HBASE-25428. Let me close this. Please feel free to
reopen if the purpose of this Jira is different than HBASE-25428.
Thanks
> After droped the table, using snapshot recovery to cause data consistency
> problems
> ----------------------------------------------------------------------------------
>
> Key: HBASE-25429
> URL: https://issues.apache.org/jira/browse/HBASE-25429
> Project: HBase
> Issue Type: Bug
> Reporter: wxzkenny
> Priority: Major
>
> We discovered a consistency problem during use HBase. The cause of the
> problem should be that after the table is dropped, when the snapshot is
> restored, in some cases the wal log will be applied, thereby the wal log of
> the dropped table restored to the restored table, because their region id are
> the same.
> Steps to reproduce
> 1. Create a tablea
> 2. Make a snapshot1
> 3. Insert some records r1
> 4. Drop the table
> 5. Restore snapshot 1
> 6. Down RS or move the region, etc., wal is reapplied
> You may see the data r1 in the snapshot1 table. The problem is not a stable
> recurrence, but there is a certain probability that it can recur.
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