[jira] [Created] (HBASE-24909) Remove unnecessary ClassNotFoundException and NoSuchMethodException stack traces from HBase startup logs

["Geoffrey Jacoby (Jira)" <ji...@apache.org>]

Geoffrey Jacoby created HBASE-24909:
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             Summary: Remove unnecessary ClassNotFoundException and NoSuchMethodException stack traces from HBase startup logs
                 Key: HBASE-24909
                 URL: https://issues.apache.org/jira/browse/HBASE-24909
             Project: HBase
          Issue Type: Improvement
            Reporter: Geoffrey Jacoby
            Assignee: Geoffrey Jacoby


During cluster startup there are a couple of places where HBase needs to use reflection to determine what version of Hadoop or protobuf it's using, and then instantiate the right class. 

If its first guess is wrong, it logs a ClassNotFoundException (for protobuf MessageLite) or NoSuchMethodException (for DFSClient.decryptEncryptedDataEncryptionKey). While this is done at DEBUG level, the exception types and the stack traces can lead to operators thinking something is wrong. 

Since neither the exception nor the stack trace is actually of interest, we should just log a brief, clear message at DEBUG level about which decision was made and eat the exception without logging it. 



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