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Posted to dev@hbase.apache.org by "wxzkenny (Jira)" <ji...@apache.org> on 2020/12/21 07:31:00 UTC

[jira] [Created] (HBASE-25428) data inconsistency problem

wxzkenny created HBASE-25428:
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             Summary: data inconsistency problem
                 Key: HBASE-25428
                 URL: https://issues.apache.org/jira/browse/HBASE-25428
             Project: HBase
          Issue Type: Bug
            Reporter: wxzkenny


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 table
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.

 

it looks like the problem:
https://issues.apache.org/jira/browse/HBASE-23741

It will still appear after we apply the relevant patch

 



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