org.apache.sqoop.mapreduce.TextExportMapper: Exception: java.io.IOException: Could not buffer record at org.apache.sqoop.mapreduce.AsyncSqlRecordWriter.write(AsyncSqlRecordWriter.java:218) at org.apache.sqoop.mapreduce.AsyncSqlRecordWriter.write(AsyncSqlRecordWriter.java:46) at org.apache.hadoop.mapred.MapTask$NewDirectOutputCollector.write(MapTask.java:655) at org.apache.hadoop.mapreduce.task.TaskInputOutputContextImpl.write(TaskInputOutputContextImpl.java:89) at org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.write(WrappedMapper.java:112) at org.apache.sqoop.mapreduce.TextExportMapper.map(TextExportMapper.java:84) at org.apache.sqoop.mapreduce.TextExportMapper.map(TextExportMapper.java:39) at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:145) at org.apache.sqoop.mapreduce.AutoProgressMapper.run(AutoProgressMapper.java:64) at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:784) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341) at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:168) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1642) at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:163) Caused by: java.lang.CloneNotSupportedException: com.cloudera.sqoop.lib.ClobRef at java.lang.Object.clone(Native Method) at org.apache.sqoop.lib.LobRef.clone(LobRef.java:109) at RDFTEST_TEST_CLOB.clone(RDFTEST_TEST_CLOB.java:222) at org.apache.sqoop.mapreduce.AsyncSqlRecordWriter.write(AsyncSqlRecordWriter.java:213)Chances are that you are hitting a Sqoop bug: SQOOP-117 At the time of writing, it is not fixed yet, but we can have a very simple workaround for this issue. Simply use –map-column-java option supported by Sqoop, information can be found on official Sqoop User Guide. For example:
$ sqoop import ... --map-column-java id=String,value=IntegerHope this helps.
