Kudu表复制（表数据迁移）

# 复制表结构，不含数据，完全一样
kudu table copy 10.128.2.162:7051,10.128.2.72:7051,10.128.2.172:7051 bn_op 10.128.2.162:7051,10.128.2.72:7051,10.128.2.172:7051 -create_table=true -dst_table=bn_op_1228 -num_threads=8 -write_type=
  
#I1228 15:49:41.570058 3034728 table_scanner.cc:466] Table bn_op_1228_2 created successfully


# 复制数据（要求表结构一致）  
kudu table copy 10.128.2.162:7051,10.128.2.72:7051,10.128.2.172:7051 bn_op 10.128.2.162:7051,10.128.2.72:7051,10.128.2.172:7051 -nocreate_table -dst_table=bn_op_1228 -num_threads=8 -write_type=insert -timeout_ms=600000

# predicates，不支持时间戳... 所以用时间做分区时，最好同时存一份整型的日期
kudu table copy 10.128.2.162:7051,10.128.2.72:7051,10.128.2.172:7051 bn_op 10.128.2.162:7051,10.128.2.72:7051,10.128.2.172:7051 -nocreate_table -dst_table=bn_op_1228 -num_threads=8 -write_type=insert -timeout_ms=600000 -predicates='["AND", [">=", "timestamp", 1669824000000000]]'

# 整型过滤后再复制表数据
kudu table copy 10.128.2.162:7051,10.128.2.72:7051,10.128.2.172:7051 bn_op 10.128.2.162:7051,10.128.2.72:7051,10.128.2.172:7051 -nocreate_table -dst_table=bn_op_1228 -num_threads=8 -write_type=insert -timeout_ms=600000 -predicates='["AND", [">=", "gbl_log_2", 800], ["NOTNULL", "gbl_log_3"]]'

   
#kudu table copy 10.128.2.162:7051,10.128.2.72:7051,10.128.2.172:7051 bn_op 10.128.2.162:7051,10.128.2.72:7051,10.128.2.172:7051 -nocreate_table -dst_table=bn_op_1228 -num_threads=8 -write_type=insert -timeout_ms=600000
#I1228 16:03:46.345592 3038583 table_scanner.cc:668] Scanned count: 100792
#I1228 16:03:51.345794 3038583 table_scanner.cc:668] Scanned count: 216486
#。。。。 
#Total count 1435409 cost 111.099 seconds