Wei-Chiu Chuang created HBASE-28898:
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             Summary: Use reflection to access recoverLease(), setSafeMode() 
APIs.
                 Key: HBASE-28898
                 URL: https://issues.apache.org/jira/browse/HBASE-28898
             Project: HBase
          Issue Type: Task
          Components: Filesystem Integration
            Reporter: Wei-Chiu Chuang


HBASE-27769 used the new Hadoop API (available since Hadoop 3.3.6/3.4.0) to 
access recoverLease() and setSafeMode() APIs, and committed the change in a 
feature branch.

However, until we move beyond Hadoop 3.3.6, we can not use them directly.

I'd like to propose to use reflection to access these APIs in the interim so 
HBase can use Ozone sooner.



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