sqoop 从 hive 导到mysql遇到的问题
周海汉/文 2013.8.22 环境 hive 版本hive-0.11.0 sqoop 版本?sqoop-1.4.4.bin__hadoop-1.0.0 从hive导到mysql mysql 表： mysql desc cps_activation; ++-++++-+ | Field | Type | Null | Key | Default | Extra | ++-++++-+ | id | int(11) | NO | PRI | NU
周海汉/文 2013.8.22
环境
hive 版本hive-0.11.0
sqoop 版本?sqoop-1.4.4.bin__hadoop-1.0.0
从hive导到mysql
mysql 表：
mysql> desc cps_activation;
+————+————-+——+—–+———+—————-+
| Field | Type | Null | Key | Default | Extra |
+————+————-+——+—–+———+—————-+
| id | int(11) | NO | PRI | NULL | auto_increment |
| day | date | NO | MUL | NULL | |
| pkgname | varchar(50) | YES | | NULL | |
| cid | varchar(50) | YES | | NULL | |
| pid | varchar(50) | YES | | NULL | |
| activation | int(11) | YES | | NULL | |
+————+————-+——+—–+———+—————-+
6 rows in set (0.01 sec)
hive表
hive> desc active;
OK
id int None
day string None
pkgname string None
cid string None
pid string None
activation int None
测试链接成功
[hadoop@hs11 ~]sqoop list-databases –connect jdbc:mysql://localhost:3306/ –username root –password admin
Warning: /usr/lib/hcatalog does not exist! HCatalog jobs will fail.
Please set $HCAT_HOME to the root of your HCatalog installation.
13/08/20 16:42:26 WARN tool.BaseSqoopTool: Setting your password on the command-line is insecure. Consider using -P instead.
13/08/20 16:42:26 INFO manager.MySQLManager: Preparing to use a MySQL streaming resultset.
information_schema
easyhadoop
mysql
test
[hadoop@hs11 ~]$ sqoop list-databases –connect jdbc:mysql://localhost:3306/test –username root –password admin
Warning: /usr/lib/hcatalog does not exist! HCatalog jobs will fail.
Please set $HCAT_HOME to the root of your HCatalog installation.
13/08/20 16:42:40 WARN tool.BaseSqoopTool: Setting your password on the command-line is insecure. Consider using -P instead.
13/08/20 16:42:40 INFO manager.MySQLManager: Preparing to use a MySQL streaming resultset.
information_schema
easyhadoop
mysql
test
[hadoop@hs11 ~]$ sqoop list-tables –connect jdbc:mysql://localhost:3306/test –username root –password admin
Warning: /usr/lib/hcatalog does not exist! HCatalog jobs will fail.
Please set $HCAT_HOME to the root of your HCatalog installation.
13/08/20 16:42:54 WARN tool.BaseSqoopTool: Setting your password on the command-line is insecure. Consider using -P instead.
13/08/20 16:42:54 INFO manager.MySQLManager: Preparing to use a MySQL streaming resultset.
active
[hadoop@hs11 ~]$? sqoop create-hive-table –connect jdbc:mysql://localhost:3306/test –table active –username root –password admin –hive-table test
Warning: /usr/lib/hcatalog does not exist! HCatalog jobs will fail.
Please set $HCAT_HOME to the root of your HCatalog installation.
13/08/20 16:57:04 WARN tool.BaseSqoopTool: Setting your password on the command-line is insecure. Consider using -P instead.
13/08/20 16:57:04 INFO tool.BaseSqoopTool: Using Hive-specific delimiters for output. You can override
13/08/20 16:57:04 INFO tool.BaseSqoopTool: delimiters with –fields-terminated-by, etc.
13/08/20 16:57:04 WARN tool.BaseSqoopTool: It seems that you’ve specified at least one of following:
13/08/20 16:57:04 WARN tool.BaseSqoopTool:????? –hive-home
13/08/20 16:57:04 WARN tool.BaseSqoopTool:????? –hive-overwrite
13/08/20 16:57:04 WARN tool.BaseSqoopTool:????? –create-hive-table
13/08/20 16:57:04 WARN tool.BaseSqoopTool:????? –hive-table
13/08/20 16:57:04 WARN tool.BaseSqoopTool:????? –hive-partition-key
13/08/20 16:57:04 WARN tool.BaseSqoopTool:????? –hive-partition-value
13/08/20 16:57:04 WARN tool.BaseSqoopTool:????? –map-column-hive
13/08/20 16:57:04 WARN tool.BaseSqoopTool: Without specifying parameter –hive-import. Please note that
13/08/20 16:57:04 WARN tool.BaseSqoopTool: those arguments will not be used in this session. Either
13/08/20 16:57:04 WARN tool.BaseSqoopTool: specify –hive-import to apply them correctly or remove them
13/08/20 16:57:04 WARN tool.BaseSqoopTool: from command line to remove this warning.
13/08/20 16:57:04 INFO tool.BaseSqoopTool: Please note that –hive-home, –hive-partition-key,
13/08/20 16:57:04 INFO tool.BaseSqoopTool:?????? hive-partition-value and –map-column-hive options are
13/08/20 16:57:04 INFO tool.BaseSqoopTool:?????? are also valid for HCatalog imports and exports
13/08/20 16:57:04 INFO manager.MySQLManager: Preparing to use a MySQL streaming resultset.
13/08/20 16:57:05 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM `active` AS t LIMIT 1
13/08/20 16:57:05 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM `active` AS t LIMIT 1
13/08/20 16:57:05 WARN hive.TableDefWriter: Column day had to be cast to a less precise type in Hive
13/08/20 16:57:05 INFO hive.HiveImport: Loading uploaded data into Hive
1、拒绝连接
[hadoop@hs11 ~]$ sqoop export –connect jdbc:mysql://localhost/test –username root? –password admin –table test –export-dir /user/hive/warehouse/actmp
Warning: /usr/lib/hcatalog does not exist! HCatalog jobs will fail.
Please set $HCAT_HOME to the root of your HCatalog installation.
13/08/21 09:14:07 WARN tool.BaseSqoopTool: Setting your password on the command-line is insecure. Consider using -P instead.
13/08/21 09:14:07 INFO manager.MySQLManager: Preparing to use a MySQL streaming resultset.
13/08/21 09:14:07 INFO tool.CodeGenTool: Beginning code generation
13/08/21 09:14:07 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM `test` AS t LIMIT 1
13/08/21 09:14:07 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM `test` AS t LIMIT 1
13/08/21 09:14:07 INFO orm.CompilationManager: HADOOP_MAPRED_HOME is /home/hadoop/hadoop-1.1.2
Note: /tmp/sqoop-hadoop/compile/0b5cae714a00b3940fb793c3694408ac/test.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
13/08/21 09:14:08 INFO orm.CompilationManager: Writing jar file: /tmp/sqoop-hadoop/compile/0b5cae714a00b3940fb793c3694408ac/test.jar
13/08/21 09:14:08 INFO mapreduce.ExportJobBase: Beginning export of test
13/08/21 09:14:09 INFO input.FileInputFormat: Total input paths to process : 1
13/08/21 09:14:09 INFO input.FileInputFormat: Total input paths to process : 1
13/08/21 09:14:09 INFO util.NativeCodeLoader: Loaded the native-hadoop library
13/08/21 09:14:09 WARN snappy.LoadSnappy: Snappy native library not loaded
13/08/21 09:14:10 INFO mapred.JobClient: Running job: job_201307251523_0059
13/08/21 09:14:11 INFO mapred.JobClient:? map 0% reduce 0%
13/08/21 09:14:20 INFO mapred.JobClient: Task Id : attempt_201307251523_0059_m_000000_0, Status : FAILED
java.io.IOException: com.mysql.jdbc.CommunicationsException: Communications link failure due to underlying exception:
** BEGIN NESTED EXCEPTION **
java.net.ConnectException
MESSAGE: Connection refused
STACKTRACE:
java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:529)
at java.net.Socket.connect(Socket.java:478)
at java.net.Socket.
at java.net.Socket.
at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:256)
at com.mysql.jdbc.MysqlIO.
at com.mysql.jdbc.Connection.createNewIO(Connection.java:2771)
at com.mysql.jdbc.Connection.
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:285)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:185)
at org.apache.sqoop.mapreduce.db.DBConfiguration.getConnection(DBConfiguration.java:294)
at org.apache.sqoop.mapreduce.AsyncSqlRecordWriter.
at org.apache.sqoop.mapreduce.ExportOutputFormat$ExportRecordWriter.
at org.apache.sqoop.mapreduce.ExportOutputFormat.getRecordWriter(ExportOutputFormat.java:77)
at org.apache.hadoop.mapred.MapTask$NewDirectOutputCollector.
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:753)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1149)
at org.apache.hadoop.mapred.Child.main(Child.java:249)
** END NESTED EXCEPTION **
Last packet sent to the server was 1 ms ago.
at org.apache.sqoop.mapreduce.ExportOutputFormat.getRecordWriter(ExportOutputFormat.java:79)
at org.apache.hadoop.mapred.MapTask$NewDirectOutputCollector.
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:753)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1149)
at org.apache.hadoop.mapred.Child.main(Child.java:249)
Caused by: com.mysql.jdbc.CommunicationsException: Communications link failure due to underlying exception:
** BEGIN NESTED EXCEPTION **
java.net.ConnectException
MESSAGE: Connection refused
mysql 用户权限问题
?mysql> show grants;
mysql> GRANT ALL PRIVILEGES ON *.* TO ‘root’@'%’ IDENTIFIED BY PASSWORD ‘*4ACFE3202A5FF5CF467898FC58AAB1D615029441′ WITH GRANT OPTION;
mysql> FLUSH PRIVILEGES;
mysql> create table test (mkey varchar(30),pkg varchar(50),cid varchar(20),pid varchar(50),count int,primary key(mkey,pkg,cid,pid) );
alter ignore table cps_activation add unique index_day_pkgname_cid_pid (`day`,`pkgname`,`cid`,`pid`);
Query OK, 0 rows affected (0.03 sec)
2. 表不存在
===========
[hadoop@hs11 ~]$ sqoop export –connect jdbc:mysql://10.10.20.11/test –username root? –password admin –table test –export-dir /user/hive/warehouse/actmp
Warning: /usr/lib/hcatalog does not exist! HCatalog jobs will fail.
Please set $HCAT_HOME to the root of your HCatalog installation.
13/08/21 09:16:26 WARN tool.BaseSqoopTool: Setting your password on the command-line is insecure. Consider using -P instead.
13/08/21 09:16:26 INFO manager.MySQLManager: Preparing to use a MySQL streaming resultset.
13/08/21 09:16:26 INFO tool.CodeGenTool: Beginning code generation
13/08/21 09:16:27 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM `test` AS t LIMIT 1
13/08/21 09:16:27 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM `test` AS t LIMIT 1
13/08/21 09:16:27 INFO orm.CompilationManager: HADOOP_MAPRED_HOME is /home/hadoop/hadoop-1.1.2
Note: /tmp/sqoop-hadoop/compile/74d18a91ec141f2feb777dc698bf7eb4/test.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
13/08/21 09:16:28 INFO orm.CompilationManager: Writing jar file: /tmp/sqoop-hadoop/compile/74d18a91ec141f2feb777dc698bf7eb4/test.jar
13/08/21 09:16:28 INFO mapreduce.ExportJobBase: Beginning export of test
13/08/21 09:16:29 INFO input.FileInputFormat: Total input paths to process : 1
13/08/21 09:16:29 INFO input.FileInputFormat: Total input paths to process : 1
13/08/21 09:16:29 INFO util.NativeCodeLoader: Loaded the native-hadoop library
13/08/21 09:16:29 WARN snappy.LoadSnappy: Snappy native library not loaded
13/08/21 09:16:29 INFO mapred.JobClient: Running job: job_201307251523_0060
13/08/21 09:16:30 INFO mapred.JobClient:? map 0% reduce 0%
13/08/21 09:16:38 INFO mapred.JobClient: Task Id : attempt_201307251523_0060_m_000000_0, Status : FAILED
java.io.IOException: Can’t export data, please check task tracker 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:144)
at org.apache.sqoop.mapreduce.AutoProgressMapper.run(AutoProgressMapper.java:64)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1149)
at org.apache.hadoop.mapred.Child.main(Child.java:249)
Caused by: java.util.NoSuchElementException
at java.util.AbstractList$Itr.next(AbstractList.java:350)
at test.__loadFromFields(test.java:252)
at test.parse(test.java:201)
at org.apache.sqoop.mapreduce.TextExportMapper.map(TextExportMapper.java:83)
… 10 more
导出数据到MySQL，当然数据库表要先存在，否则会报错
此错误的原因为sqoop解析文件的字段与MySql数据库的表的字段对应不上造成的。因此需要在执行的时候给sqoop增加参数，告诉sqoop文件的分隔符，使它能够正确的解析文件字段。hive默认的字段分隔符为’\001′
===========
3. null字段填充符需指定
没有指定null字段分隔符，导致错位。
[hadoop@hs11 ~]$ sqoop export –connect jdbc:mysql://10.10.20.11/test –username root? –password admin –table test –export-dir /user/hive/warehouse/actmp –input-fields-tminated-by ‘\001′
Warning: /usr/lib/hcatalog does not exist! HCatalog jobs will fail.
Please set $HCAT_HOME to the root of your HCatalog installation.
13/08/21 09:21:07 WARN tool.BaseSqoopTool: Setting your password on the command-line is insecure. Consider using -P instead.
13/08/21 09:21:07 INFO manager.MySQLManager: Preparing to use a MySQL streaming resultset.
13/08/21 09:21:07 INFO tool.CodeGenTool: Beginning code generation
13/08/21 09:21:07 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM `test` AS t LIMIT 1
13/08/21 09:21:07 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM `test` AS t LIMIT 1
13/08/21 09:21:07 INFO orm.CompilationManager: HADOOP_MAPRED_HOME is /home/hadoop/hadoop-1.1.2
Note: /tmp/sqoop-hadoop/compile/04d183c9e534cdb8d735e1bdc4be3deb/test.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
13/08/21 09:21:08 INFO orm.CompilationManager: Writing jar file: /tmp/sqoop-hadoop/compile/04d183c9e534cdb8d735e1bdc4be3deb/test.jar
13/08/21 09:21:08 INFO mapreduce.ExportJobBase: Beginning export of test
13/08/21 09:21:09 INFO input.FileInputFormat: Total input paths to process : 1
13/08/21 09:21:09 INFO input.FileInputFormat: Total input paths to process : 1
13/08/21 09:21:09 INFO util.NativeCodeLoader: Loaded the native-hadoop library
13/08/21 09:21:09 WARN snappy.LoadSnappy: Snappy native library not loaded
13/08/21 09:21:10 INFO mapred.JobClient: Running job: job_201307251523_0061
13/08/21 09:21:11 INFO mapred.JobClient:? map 0% reduce 0%
13/08/21 09:21:17 INFO mapred.JobClient:? map 25% reduce 0%
13/08/21 09:21:19 INFO mapred.JobClient:? map 50% reduce 0%
13/08/21 09:21:21 INFO mapred.JobClient: Task Id : attempt_201307251523_0061_m_000001_0, Status : FAILED
java.io.IOException: Can’t export data, please check task tracker 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:144)
at org.apache.sqoop.mapreduce.AutoProgressMapper.run(AutoProgressMapper.java:64)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1149)
at org.apache.hadoop.mapred.Child.main(Child.java:249)
Caused by: java.lang.NumberFormatException: For input string: “665A5FFA-32C9-9463-1943-840A5FEAE193″
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
at java.lang.Integer.parseInt(Integer.java:458)
at java.lang.Integer.valueOf(Integer.java:554)
at test.__loadFromFields(test.java:264)
at test.parse(test.java:201)
at org.apache.sqoop.mapreduce.TextExportMapper.map(TextExportMapper.java:83)
… 10 more
===========
4.成功
[hadoop@hs11 ~]$ sqoop export –connect jdbc:mysql://10.10.20.11/test –username root? –password admin –table test –export-dir /user/hive/warehouse/actmp –input-fields-terminated-by ‘\001′ –input-null-string ‘\\N’ –input-null-non-string ‘\\N’
Warning: /usr/lib/hcatalog does not exist! HCatalog jobs will fail.
Please set $HCAT_HOME to the root of your HCatalog installation.
13/08/21 09:36:13 WARN tool.BaseSqoopTool: Setting your password on the command-line is insecure. Consider using -P instead.
13/08/21 09:36:13 INFO manager.MySQLManager: Preparing to use a MySQL streaming resultset.
13/08/21 09:36:13 INFO tool.CodeGenTool: Beginning code generation
13/08/21 09:36:13 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM `test` AS t LIMIT 1
13/08/21 09:36:13 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM `test` AS t LIMIT 1
13/08/21 09:36:13 INFO orm.CompilationManager: HADOOP_MAPRED_HOME is /home/hadoop/hadoop-1.1.2
Note: /tmp/sqoop-hadoop/compile/e22d31391498b790d799897cde25047d/test.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
13/08/21 09:36:14 INFO orm.CompilationManager: Writing jar file: /tmp/sqoop-hadoop/compile/e22d31391498b790d799897cde25047d/test.jar
13/08/21 09:36:14 INFO mapreduce.ExportJobBase: Beginning export of test
13/08/21 09:36:15 INFO input.FileInputFormat: Total input paths to process : 1
13/08/21 09:36:15 INFO input.FileInputFormat: Total input paths to process : 1
13/08/21 09:36:15 INFO util.NativeCodeLoader: Loaded the native-hadoop library
13/08/21 09:36:15 WARN snappy.LoadSnappy: Snappy native library not loaded
13/08/21 09:36:16 INFO mapred.JobClient: Running job: job_201307251523_0064
13/08/21 09:36:17 INFO mapred.JobClient:? map 0% reduce 0%
13/08/21 09:36:23 INFO mapred.JobClient:? map 25% reduce 0%
13/08/21 09:36:25 INFO mapred.JobClient:? map 100% reduce 0%
13/08/21 09:36:27 INFO mapred.JobClient: Job complete: job_201307251523_0064
13/08/21 09:36:27 INFO mapred.JobClient: Counters: 18
13/08/21 09:36:27 INFO mapred.JobClient:?? Job Counters
13/08/21 09:36:27 INFO mapred.JobClient:???? SLOTS_MILLIS_MAPS=13151
13/08/21 09:36:27 INFO mapred.JobClient:???? Total time spent by all reduces waiting after reserving slots (ms)=0
13/08/21 09:36:27 INFO mapred.JobClient:???? Total time spent by all maps waiting after reserving slots (ms)=0
13/08/21 09:36:27 INFO mapred.JobClient:???? Rack-local map tasks=2
13/08/21 09:36:27 INFO mapred.JobClient:???? Launched map tasks=4
13/08/21 09:36:27 INFO mapred.JobClient:???? SLOTS_MILLIS_REDUCES=0
13/08/21 09:36:27 INFO mapred.JobClient:?? File Output Format Counters
13/08/21 09:36:27 INFO mapred.JobClient:???? Bytes Written=0
13/08/21 09:36:27 INFO mapred.JobClient:?? FileSystemCounters
13/08/21 09:36:27 INFO mapred.JobClient:???? HDFS_BYTES_READ=1519
13/08/21 09:36:27 INFO mapred.JobClient:???? FILE_BYTES_WRITTEN=234149
13/08/21 09:36:27 INFO mapred.JobClient:?? File Input Format Counters
13/08/21 09:36:27 INFO mapred.JobClient:???? Bytes Read=0
13/08/21 09:36:27 INFO mapred.JobClient:?? Map-Reduce Framework
13/08/21 09:36:27 INFO mapred.JobClient:???? Map input records=6
13/08/21 09:36:27 INFO mapred.JobClient:???? Physical memory (bytes) snapshot=663863296
13/08/21 09:36:27 INFO mapred.JobClient:???? Spilled Records=0
13/08/21 09:36:27 INFO mapred.JobClient:???? CPU time spent (ms)=3720
13/08/21 09:36:27 INFO mapred.JobClient:???? Total committed heap usage (bytes)=2013790208
13/08/21 09:36:27 INFO mapred.JobClient:???? Virtual memory (bytes) snapshot=5583151104
13/08/21 09:36:27 INFO mapred.JobClient:???? Map output records=6
13/08/21 09:36:27 INFO mapred.JobClient:???? SPLIT_RAW_BYTES=571
13/08/21 09:36:27 INFO mapreduce.ExportJobBase: Transferred 1.4834 KB in 12.1574 seconds (124.9446 bytes/sec)
13/08/21 09:36:27 INFO mapreduce.ExportJobBase: Exported 6 records.
———-
5. mysql字符串长度定义太短，存不下
java.io.IOException: com.mysql.jdbc.MysqlDataTruncation: Data truncation: Data too long for column ‘pid’ at row 1
at org.apache.sqoop.mapreduce.AsyncSqlRecordWriter.close(AsyncSqlRecordWriter.java:192)
at org.apache.hadoop.mapred.MapTask$NewDirectOutputCollector.close(MapTask.java:651)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:766)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1149)
at org.apache.hadoop.mapred.Child.main(Child.java:249)
Caused by: com.mysql.jdbc.MysqlDataTruncation: Data truncation: Data too long for column ‘pid’ at row 1
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2983)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1631)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1723)
at com.mysql.jdbc.Connection.execSQL(Connection.java:3283)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1332)
at com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:882)
at org.apache.sqoop.mapreduce.AsyncSqlOutputFormat$AsyncSqlExecThread.run(AsyncSqlOutputFormat.java:233)
———————-
6.日期格式问题
mysql date日期格式，hive中字符串必须是yyyy-mm-dd, 我原来使用yyyymmdd,报下面的错误。
13/08/21 17:42:44 INFO mapred.JobClient: Task Id : attempt_201307251523_0079_m_000000_1, Status : FAILED
java.io.IOException: Can’t export data, please check task tracker 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:144)
at org.apache.sqoop.mapreduce.AutoProgressMapper.run(AutoProgressMapper.java:64)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1149)
at org.apache.hadoop.mapred.Child.main(Child.java:249)
Caused by: java.lang.IllegalArgumentException
at java.sql.Date.valueOf(Date.java:138)
at cps_activation.__loadFromFields(cps_activation.java:308)
at cps_activation.parse(cps_activation.java:255)
at org.apache.sqoop.mapreduce.TextExportMapper.map(TextExportMapper.java:83)
… 10 more
———————-
7. 字段对不上或字段类型不一致
Caused by: java.lang.NumberFormatException: For input string: “06701A4A-0808-E9A8-0D28-A8020B494E37″
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
at java.lang.Integer.parseInt(Integer.java:458)
at java.lang.Integer.valueOf(Integer.java:554)
at test.__loadFromFields(test.java:264)
at test.parse(test.java:201)
at org.apache.sqoop.mapreduce.TextExportMapper.map(TextExportMapper.java:83)
… 10 more
相关博文：
- 从mysql将数据导入hive
- sqoop 1.99 安装配置
- 用sqoop进行mysql和hdfs系统间的数据互导
原文地址：sqoop 从 hive 导到mysql遇到的问题, 感谢原作者分享。
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1669
14
1428
52
1329
25
1273
29
1256
24
Laravel Introduction Example
Apr 18, 2025 pm 12:45 PM
Laravel is a PHP framework for easy building of web applications. It provides a range of powerful features including: Installation: Install the Laravel CLI globally with Composer and create applications in the project directory. Routing: Define the relationship between the URL and the handler in routes/web.php. View: Create a view in resources/views to render the application's interface. Database Integration: Provides out-of-the-box integration with databases such as MySQL and uses migration to create and modify tables. Model and Controller: The model represents the database entity and the controller processes HTTP requests.
MySQL and phpMyAdmin: Core Features and Functions
Apr 22, 2025 am 12:12 AM
MySQL and phpMyAdmin are powerful database management tools. 1) MySQL is used to create databases and tables, and to execute DML and SQL queries. 2) phpMyAdmin provides an intuitive interface for database management, table structure management, data operations and user permission management.
MySQL vs. Other Programming Languages: A Comparison
Apr 19, 2025 am 12:22 AM
Compared with other programming languages, MySQL is mainly used to store and manage data, while other languages such as Python, Java, and C are used for logical processing and application development. MySQL is known for its high performance, scalability and cross-platform support, suitable for data management needs, while other languages have advantages in their respective fields such as data analytics, enterprise applications, and system programming.
Laravel framework installation method
Apr 18, 2025 pm 12:54 PM
Article summary: This article provides detailed step-by-step instructions to guide readers on how to easily install the Laravel framework. Laravel is a powerful PHP framework that speeds up the development process of web applications. This tutorial covers the installation process from system requirements to configuring databases and setting up routing. By following these steps, readers can quickly and efficiently lay a solid foundation for their Laravel project.
Explain the purpose of foreign keys in MySQL.
Apr 25, 2025 am 12:17 AM
In MySQL, the function of foreign keys is to establish the relationship between tables and ensure the consistency and integrity of the data. Foreign keys maintain the effectiveness of data through reference integrity checks and cascading operations. Pay attention to performance optimization and avoid common errors when using them.
Compare and contrast MySQL and MariaDB.
Apr 26, 2025 am 12:08 AM
The main difference between MySQL and MariaDB is performance, functionality and license: 1. MySQL is developed by Oracle, and MariaDB is its fork. 2. MariaDB may perform better in high load environments. 3.MariaDB provides more storage engines and functions. 4.MySQL adopts a dual license, and MariaDB is completely open source. The existing infrastructure, performance requirements, functional requirements and license costs should be taken into account when choosing.
SQL vs. MySQL: Clarifying the Relationship Between the Two
Apr 24, 2025 am 12:02 AM
SQL is a standard language for managing relational databases, while MySQL is a database management system that uses SQL. SQL defines ways to interact with a database, including CRUD operations, while MySQL implements the SQL standard and provides additional features such as stored procedures and triggers.
What software is better for yi framework? Recommended software for yi framework
Apr 18, 2025 pm 11:03 PM
Abstract of the first paragraph of the article: When choosing software to develop Yi framework applications, multiple factors need to be considered. While native mobile application development tools such as XCode and Android Studio can provide strong control and flexibility, cross-platform frameworks such as React Native and Flutter are becoming increasingly popular with the benefits of being able to deploy to multiple platforms at once. For developers new to mobile development, low-code or no-code platforms such as AppSheet and Glide can quickly and easily build applications. Additionally, cloud service providers such as AWS Amplify and Firebase provide comprehensive tools
