Sqoop导入问题 - java.lang.IncompatibleClassChangeError:找到类org.apache.hadoop.mapreduce.JobContext,但接口是预期的 [英] Sqoop import issue - java.lang.IncompatibleClassChangeError: Found class org.apache.hadoop.mapreduce.JobContext, but interface was expected
问题描述
我使用 Sqoop 1.4.3
和 hadoop 1.2.4
和 hive 0.11.0
当我尝试执行sqoop导入时:它抛出 有任何建议可以解决这个问题.. 使用Sqoop cmd: 跟踪: 能否提供我们可以配置哪个版本的Sqoop来获得这个工作..? 您是从版本冲突的痛苦,最有可能你正在运行在Hadoop 2.0编写Hadoop的1.0代码。这是因为Hadoop 1.0和2.0大多不兼容,所以您应该确保下载与您的Hadoop发行版相匹配的Sqoop版本。 有关更多详细信息,请查看这里。 I'm using When I am trying to do a sqoop import: its throwing up Any suggestions to get this fixed.. Sqoop cmd used: Trace: can any one suggest which version of Sqoop we can configure get this working..? You are suffering from a version conflict, most likely you are running code compiled on Hadoop 1.0 on Hadoop 2.0. This is because Hadoop 1.0 and 2.0 are mostly incompatible, so you should make sure to download the version of Sqoop that matches your Hadoop distribution. For more details, look here. 这篇关于Sqoop导入问题 - java.lang.IncompatibleClassChangeError:找到类org.apache.hadoop.mapreduce.JobContext,但接口是预期的的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋! IncompatibleClassChangeError。$ c
$ b
sqoop import --connect jdbc:mysql:// localhost:3306 / employees \
--username test --password test
线程main中的异常java.lang.IncompatibleClassChangeError:找到类org.apache.hadoop.mapreduce.JobContext,但期望接口
在org.apache.sqoop.config.ConfigurationHelper.getJobNumMaps(ConfigurationHelper .java:53)
at com.cloudera.sqoop.config.ConfigurationHelper.getJobNumMaps(ConfigurationHelper.java:36)
at org.apache.sqoop.mapreduce.db.DataDrivenDBInputFormat.getSplits(DataDrivenDBInputFormat.java :121)在org.apach
在org.apache.hadoop.mapred.JobClient.writeSplits e.hadoop.mapred.JobClient.writeNewSplits(JobClient.java:1054)
(JobClient.java:1071)
。在org.apache.hadoop。 mapred.JobClient.access $ 700(JobClient.java:179)
。在org.apache.hadoop.mapred.JobClient $ 2.run(JobClient.java:983)
。在org.apache.hadoop.mapred。 JobClient $ 2.run(JobClient.java:936)
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:1190)
at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:936)
at org .apache.hadoop.mapreduce.Job.submit(Job.java:550)
在org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:580)
在org.apache.sqoop .mapreduce.ImportJobBase.doSubmitJob(ImportJobBase.java:173)
at org.apache.sqoop.mapreduce.I mportJobBase.runJob(ImportJobBase.java:151)
at org.apache.sqoop.mapreduce.ImportJobBase.runImport(ImportJobBase.java:221)
at org.apache.sqoop.manager.SqlManager.importTable( SqlManager.java:545)在org.apache.sqoop.manager.MySQLManager.importTable(MySQLManager.java:111
)
在org.apache.sqoop.tool.ImportTool.importTable(ImportTool.java: 403)
at org.apache.sqoop.tool.ImportTool.run(ImportTool.java:476)
at org.apache.sqoop.Sqoop.run(Sqoop.java:145)
在org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
在org.apache.sqoop.Sqoop.runSqoop(Sqoop.java:181)
在org.apache.sqoop .Sqoop.runTool(Sqoop.java:220)
at org.apache.sqoop.Sqoop.runTool(Sqoop.java:229)
at org.apache.sqoop.Sqoop.main(Sqoop.java :238)
Sqoop 1.4.3
with hadoop 1.2.4
and hive 0.11.0
IncompatibleClassChangeError.
sqoop import --connect jdbc:mysql://localhost:3306/employees \
--username test --password test
Exception in thread "main" java.lang.IncompatibleClassChangeError: Found class org.apache.hadoop.mapreduce.JobContext, but interface was expected
at org.apache.sqoop.config.ConfigurationHelper.getJobNumMaps(ConfigurationHelper.java:53)
at com.cloudera.sqoop.config.ConfigurationHelper.getJobNumMaps(ConfigurationHelper.java:36)
at org.apache.sqoop.mapreduce.db.DataDrivenDBInputFormat.getSplits(DataDrivenDBInputFormat.java:121)
at org.apache.hadoop.mapred.JobClient.writeNewSplits(JobClient.java:1054)
at org.apache.hadoop.mapred.JobClient.writeSplits(JobClient.java:1071)
at org.apache.hadoop.mapred.JobClient.access$700(JobClient.java:179)
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:983)
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:936)
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:1190)
at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:936)
at org.apache.hadoop.mapreduce.Job.submit(Job.java:550)
at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:580)
at org.apache.sqoop.mapreduce.ImportJobBase.doSubmitJob(ImportJobBase.java:173)
at org.apache.sqoop.mapreduce.ImportJobBase.runJob(ImportJobBase.java:151)
at org.apache.sqoop.mapreduce.ImportJobBase.runImport(ImportJobBase.java:221)
at org.apache.sqoop.manager.SqlManager.importTable(SqlManager.java:545)
at org.apache.sqoop.manager.MySQLManager.importTable(MySQLManager.java:111)
at org.apache.sqoop.tool.ImportTool.importTable(ImportTool.java:403)
at org.apache.sqoop.tool.ImportTool.run(ImportTool.java:476)
at org.apache.sqoop.Sqoop.run(Sqoop.java:145)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at org.apache.sqoop.Sqoop.runSqoop(Sqoop.java:181)
at org.apache.sqoop.Sqoop.runTool(Sqoop.java:220)
at org.apache.sqoop.Sqoop.runTool(Sqoop.java:229)
at org.apache.sqoop.Sqoop.main(Sqoop.java:238)