sqoop从mysql数据库导入hdfs，当数据多的话，报错

发布于 2021-11-26 05:58:22 字数 2104 浏览 930 评论 1

The last packet successfully received from the server was 203,695 milliseconds ago. The last packet sent successfully to the server was 203,807 milliseconds ago.

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:406)

at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1074)

at com.mysql.jdbc.MysqlIO.nextRowFast(MysqlIO.java:1651)

at com.mysql.jdbc.MysqlIO.nextRow(MysqlIO.java:1407)

at com.mysql.jdbc.MysqlIO.readSingleRowSet(MysqlIO.java:2861)

at com.mysql.jdbc.MysqlIO.getResultSet(MysqlIO.java:474)

at com.mysql.jdbc.MysqlIO.readResultsForQueryOrUpdate(MysqlIO.java:2554)

at com.mysql.jdbc.MysqlIO.readAllResults(MysqlIO.java:1755)

at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2165)

at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2648)

at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2086)

at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2237)

at org.apache.sqoop.mapreduce.db.DBRecordReader.executeQuery(DBRecordReader.java:111)

at org.apache.sqoop.mapreduce.db.DBRecordReader.nextKeyValue(DBRecordReader.java:235)

... 12 more