摘要：
```
# 1 版本相同
hadoop distcp -m 10 -bandwidth 150 hdfs://ns1/user/hive/warehouse/public.db/public_oi_fact hdfs://xxx:8020/user/hive/warehouse # 2 版本不同
hadoop distcp -m 2000 -bandwidth 200 webhdfs://ip... 阅读全文
|
摘要：
```
# 1 版本相同
hadoop distcp -m 10 -bandwidth 150 hdfs://ns1/user/hive/warehouse/public.db/public_oi_fact hdfs://xxx:8020/user/hive/warehouse # 2 版本不同
hadoop distcp -m 2000 -bandwidth 200 webhdfs://ip... 阅读全文
摘要：
``` select round(sum(DATA_LENGTH / 1024 / 1024 ), 2) from .`tables` where table_schema = '%s' and table_name = '%s' % (db_name, table_name) 单位M 阅读全文
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