报错栈：
Error: java.io.IOException: Cannection handler cannot recover failure:
at org.apache.sqoop.mapreduce.db.SQLServerDBRecordReader.nextKeyValue(SQLServerDBRecordReader.java:)
at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:)
at org.apache.hadoop.mapreduce.task.MapContextImpl.nextKeyValue(MapContextImpl.java:)
at org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.nextKeyValue(WrappedMapper.java:)
at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:)
at org.apache.sqoop.mapreduce.AutoProgressMapper.run(AutoProgressMapper.java:)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:)
at org.apache.hadoop.mapred.YarnChild$.run(YarnChild.java:)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:)
Caused by: java.io.IOException: SQLException in nextKeyValue
at org.apache.sqoop.mapreduce.db.DBRecordReader.nextKeyValue(DBRecordReader.java:)
at org.apache.sqoop.mapreduce.db.SQLServerDBRecordReader.nextKeyValue(SQLServerDBRecordReader.java:)
... more
Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: 将字符串转换为 uniqueidentifier 时失败。
at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDatabaseError(SQLServerException.java:)
at com.microsoft.sqlserver.jdbc.SQLServerResultSet$FetchBuffer.nextRow(SQLServerResultSet.java:)
at com.microsoft.sqlserver.jdbc.SQLServerResultSet.fetchBufferNext(SQLServerResultSet.java:)
at com.microsoft.sqlserver.jdbc.SQLServerResultSet.next(SQLServerResultSet.java:)
at org.apache.sqoop.mapreduce.db.DBRecordReader.nextKeyValue(DBRecordReader.java:)
... more
解决：uniqueidentifier类型的列不能作为参数--split-by的值