wxzkenny created HBASE-25429:
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Summary: 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
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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