HBASE-9515 Intermittent TestZKSecretWatcher#testKeyUpdate failure (Ted Yu)



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HBASE-9347 followup -- adding new files missed in original commit

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HBASE-9211 "ERROR: undefined method `message' for nil:NilClass" in the shell on error



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HBASE-9471 htrace synchronized on getInstance

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Link to the thread on compression +/-s from mailing lists

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