java.lang.IncompatibleClassChangeError

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    • java.lang.IncompatibleClassChangeError: Found interface org.apache.hadoop.mapreduce.JobContext, but class 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.mapreduce.JobSubmitter.writeNewSplits(JobSubmitter.java:301) at org.apache.hadoop.mapreduce.JobSubmitter.writeSplits(JobSubmitter.java:318) at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:196) at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1290) at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1287) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657) at org.apache.hadoop.mapreduce.Job.submit(Job.java:1287) at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1308) at org.apache.sqoop.mapreduce.ImportJobBase.doSubmitJob(ImportJobBase.java:186) at org.apache.sqoop.mapreduce.ImportJobBase.runJob(ImportJobBase.java:159) at org.apache.sqoop.mapreduce.ImportJobBase.runImport(ImportJobBase.java:247) at org.apache.sqoop.manager.SqlManager.importTable(SqlManager.java:665) at org.apache.sqoop.manager.MySQLManager.importTable(MySQLManager.java:118) at org.apache.sqoop.tool.ImportTool.importTable(ImportTool.java:497) at org.apache.sqoop.tool.ImportAllTablesTool.run(ImportAllTablesTool.java:105) at org.apache.sqoop.Sqoop.run(Sqoop.java:143) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70) at org.apache.sqoop.Sqoop.runSqoop(Sqoop.java:179) at org.apache.sqoop.Sqoop.runTool(Sqoop.java:218) at org.apache.sqoop.Sqoop.runTool(Sqoop.java:227) at org.apache.sqoop.Sqoop.main(Sqoop.java:236)
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