HBASE-9230 Fix the server so it can take a pure pb request param and return a pure pb result

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HBASE-9278 Reading Pre-namespace meta table edits kills the reader

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HBASE-9341 Document hbase.hstore.compaction.kv.max

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HBASE-9278 Reading Pre-namespace meta table edits kills the reader; COMMIT CONTINUATION

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HBASE-9370 Add logging to Schema change Chaos actions.

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