Sqoop scenarios:
1. The data migration, data import relational database storage system Hadoop
2. visual analysis, the results produced after the process is introduced Hadoop relational database, for visual display
3. Data delta import: hadoop reduction during analysis of the performance of a relational database, data is typically introduced alone into a hadoop storage system.
Sqoop Features:
1. High Performance: import and export data to complete mapReduce
2. The automatic type conversions: Sqoop source data can be read meta information, data type mappings automatically, the user can customize the type of mapping relationship required
3. Automatic meta information dissemination: Sqoop simultaneously transmitted to the data, meta-information is also transmitted to ensure that the sending end and a receiving end to the meta information consistent