一个简单的输出提示错误，请教一下是什么问题。

Question

2016/11/07 16:11:39 - Spoon - 开始执行转换.

2016/11/07 16:11:39 - etl_test - 为了转换解除补丁开始  [etl_test]

2016/11/07 16:11:39 - Transformation metadata - Natural sort of steps executed in 0ms (3 time previous steps calculated)

2016/11/07 16:11:39 - etl_test - 这项转换可以被回放 回放日期是: 2016/11/07 16:11:39

2016/11/07 16:11:39 - 表输出.0 - Connected to database [xy_exchange] (commit=1000)

2016/11/07 16:11:39 - 表输入.0 - Finished reading query, closing connection.

2016/11/07 16:11:39 - 表输入.0 - 完成处理 (I=15, O=0, R=0, W=15, U=0, E=0

2016/11/07 16:11:39 - 表输出.0 - ERROR (version 4.1.0-stable, build 14410 from 2010-11-16 16.43.28 by buildguy) : Unexpected batch update error committing the database connection.

2016/11/07 16:11:39 - 表输出.0 - ERROR (version 4.1.0-stable, build 14410 from 2010-11-16 16.43.28 by buildguy) : org.pentaho.di.core.exception.KettleDatabaseBatchException: 

2016/11/07 16:11:39 - 表输出.0 - ERROR (version 4.1.0-stable, build 14410 from 2010-11-16 16.43.28 by buildguy) : Error updating batch

2016/11/07 16:11:39 - 表输出.0 - ERROR (version 4.1.0-stable, build 14410 from 2010-11-16 16.43.28 by buildguy) : Data truncation

2016/11/07 16:11:39 - 表输出.0 - ERROR (version 4.1.0-stable, build 14410 from 2010-11-16 16.43.28 by buildguy) : org.pentaho.di.core.database.Database.emptyAndCommit(Database.java:1471)

2016/11/07 16:11:39 - 表输出.0 - ERROR (version 4.1.0-stable, build 14410 from 2010-11-16 16.43.28 by buildguy) : org.pentaho.di.trans.steps.tableoutput.TableOutput.dispose(TableOutput.java:641)

2016/11/07 16:11:39 - 表输出.0 - ERROR (version 4.1.0-stable, build 14410 from 2010-11-16 16.43.28 by buildguy) : org.pentaho.di.trans.step.RunThread.run(RunThread.java:69)

2016/11/07 16:11:39 - 表输出.0 - ERROR (version 4.1.0-stable, build 14410 from 2010-11-16 16.43.28 by buildguy) : java.lang.Thread.run(Thread.java:662)

2016/11/07 16:11:39 - 表输出.0 - 完成处理 (I=0, O=0, R=15, W=0, U=0, E=1

2016/11/07 16:11:39 - Spoon - 转换完成!!

2016/11/07 16:11:39 - etl_test - ERROR (version 4.1.0-stable, build 14410 from 2010-11-16 16.43.28 by buildguy) : 错误被检测到!

2016/11/07 16:11:39 - etl_test - ERROR (version 4.1.0-stable, build 14410 from 2010-11-16 16.43.28 by buildguy) : 错误被检测到!

2016/11/07 16:11:39 - etl_test - etl_test

2016/11/07 16:11:39 - etl_test - etl_test

Answer 1

亲，数据库连接失败了