OK, after blaming, I think we do not need to support these things any more...
The related code in CopyTable had already been removed in HBASE-6044... Let me file an issue to remove these in the TableOutputFormat class too. 张铎(Duo Zhang) <palomino...@gmail.com> 于2024年5月25日周六 21:39写道： > > Now we have these codes in TableOutputFormat > > https://github.com/apache/hbase/blob/2130e5410f63fead548d14c11d3b439e0d98f603/hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/TableOutputFormat.java#L217 > > if (serverClass != null) { > this.conf.set(HConstants.REGION_SERVER_IMPL, serverImpl); > } > > It was added in HBASE-2221, when we wanted to implement MR based table > copy. Does anyone still remember the reason why we wanted to specify > region server class and implementation when copying a table? It does > not make sense to me... > > Thanks.
