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Posted to dev@hbase.apache.org by "Pankaj Kumar (Jira)" <ji...@apache.org> on 2020/12/09 13:14:00 UTC

[jira] [Created] (HBASE-25378) Legacy comparator in Hfile trailer will fail to load

Pankaj Kumar created HBASE-25378:
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             Summary: Legacy comparator in Hfile trailer will fail to load
                 Key: HBASE-25378
                 URL: https://issues.apache.org/jira/browse/HBASE-25378
             Project: HBase
          Issue Type: Bug
    Affects Versions: 2.3.2, 3.0.0-alpha-1, 2.4.0
            Reporter: Pankaj Kumar
            Assignee: Pankaj Kumar


HBASE-24968 moved MetaCellComparator out from CellComparatorImpl to avoid the deadlock issue. But this introduced incompatibility issue, old hfile with comparator class as "org.apache.hadoop.hbase.CellComparator$MetaCellComparator" will fail to open due to ClassNotFoundException.

Also we should also handle the case when comparator class is "org.apache.hadoop.hbase.CellComparatorImpl$MetaCellComparator", which was case before HBASE-24968.

 



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