Error: java.io.IOException: Can't export data, please check failed map task logs
at org.apache.sqoop.mapreduce.TextExportMapper.map(TextExportMapper.java:112)
at org.apache.sqoop.mapreduce.TextExportMapper.map(TextExportMapper.java:39)
at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:146)
at org.apache.sqoop.mapreduce.AutoProgressMapper.run(AutoProgressMapper.java:64)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:787)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)
Caused by: java.io.IOException: java.sql.BatchUpdateException: Deadlock found when trying to get lock; try restarting transaction
at org.apache.sqoop.mapreduce.AsyncSqlRecordWriter.write(AsyncSqlRecordWriter.java:220)
at org.apache.sqoop.mapreduce.AsyncSqlRecordWriter.write(AsyncSqlRecordWriter.java:46)
at org.apache.hadoop.mapred.MapTask$NewDirectOutputCollector.write(MapTask.java:658)
at org.apache.hadoop.mapreduce.task.TaskInputOutputContextImpl.write(TaskInputOutputContextImpl.java:89)
at org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.write(WrappedMapper.java:112)
at org.apache.sqoop.mapreduce.TextExportMapper.map(TextExportMapper.java:84)
... 10 more
Caused by: java.sql.BatchUpdateException: Deadlock found when trying to get lock; try restarting transaction
at com.mysql.jdbc.SQLError.createBatchUpdateException(SQLError.java:1167)
at com.mysql.jdbc.PreparedStatement.executeBatchSerially(PreparedStatement.java:1772)
at com.mysql.jdbc.PreparedStatement.executeBatchInternal(PreparedStatement.java:1262)
at com.mysql.jdbc.StatementImpl.executeBatch(StatementImpl.java:970)
at org.apache.sqoop.mapreduce.AsyncSqlOutputFormat$AsyncSqlExecThread.run(AsyncSqlOutputFormat.java:231)
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLTransactionRollbackException: Deadlock found when trying to get lock; try restarting transaction
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
at com.mysql.jdbc.Util.getInstance(Util.java:408)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:951)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3973)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3909)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2527)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2680)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2487)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1858)
at com.mysql.jdbc.PreparedStatement.executeUpdateInternal(PreparedStatement.java:2079)
at com.mysql.jdbc.PreparedStatement.executeBatchSerially(PreparedStatement.java:1756)
... 3 more
sqoop导出数据从hive到mysql报错
sqoop配置如下：
bin/sqoop export
--connect jdbc:mysql://ip:3306/database?tinyInt1isBit=false
--username xxx
--password xxx
--table xxx
--update-key dt,xxx,xxx
--update-mode updateonly
--export-dir /xxx/xxx
--fields-terminated-by ' 01'
-m 4
设置发现：
--update-key 设置为--update-mode updateonly模式时，则报错 。
--update-key 设置为--update-mode allowinsert模式时，不报错。
看日志报错信息为mysql死锁问题，但未发现具体原因发生在什么地方 。
排错后，发现mysql中没有使用联合索引，当在mysql中增加对应的mysql联合ENGINE=InnoDB索引时，不在报错。
alter table tmp_table add key d_x_x_x (dt,xx,xx,xx,xx,xx) ;