发布于 2014-11-26 23:17:22 | 339 次阅读 | 评论: 0 | 来源: 网友投递
Apache Sqoop Hadoop和数据库数据迁移工具
Sqoop是一个用来将Hadoop和关系型数据库中的数据相互转移的工具，可以将一个关系型数据库（例如 ： MySQL ,Oracle ,Postgres等）中的数据导入到Hadoop的HDFS中，也可以将HDFS的数据导入到关系型数据库中。
Apache Sqoop 1.99.4 发布，这是 Sqoop2 的第四个里程碑版本，是非常重要的一个里程碑。
Sqoop是一个用来将Hadoop和关系型数据库中的数据相互转移的工具，可以将一个关系型数据库（例如 ： MySQL ,Oracle ,Postgres等）中的数据导入到Hadoop的HDFS中，也可以将HDFS的数据导入到关系型数据库中。
该版本改进内容和新特性：
[SQOOP-773] - Sqoop2: Batch execution support for client commands
[SQOOP-1144] - Sqoop2: Add fixVersion to PreCommit branch detection
[SQOOP-1189] - Sqoop2: Ensure that clone methods will correctly copy over all values from all parents
[SQOOP-1196] - Sqoop2: Add support for arbitrary compression codecs
[SQOOP-1211] - Sqoop2: Derby repo: Sync maximal length of versions
[SQOOP-1225] - Sqoop 2 documentation for connector development
[SQOOP-1290] - Sqoop2: Kill Tomcat in case that Sqoop Server fails to load
[SQOOP-1509] - Sqoop2: Sqoop2 Rest API refactoring
[SQOOP-1547] - Sqoop2: Connector API stabilization
[SQOOP-1557] - Sqoop2: SQ_CONFIGURABLE ( for entities who own configs)
[SQOOP-1566] - Sqoop2: Fix the upgrade logic for SQOOP-1498
[SQOOP-1585] - Sqoop2: Prefix mapreduce classes with MR ( no functionality change)
[SQOOP-1586] - Sqoop2: Rename leftovers from the SQOOP2 merge of 1367
[SQOOP-1597] - Sqoop2: Refactor DerbySchemaQuery into one for create/ update/ and then CRUD operarations
[SQOOP-1620] - Sqoop2: FileSystem should be configurable in HDFS connector
[SQOOP-777] - Sqoop2: Implement intermediate data format representation policy
[SQOOP-1232] - Sqoop2: Provide tooling infrastructure for Sqoop2
[SQOOP-1367] - Sqoop2: From/To
其他还有很多 bug 的修复，详情请看 Release Notes