Apache Hadoop MapReduce Core errors

A software framework for easily writing applications which process vast amounts of data in-parallel on large clusters of commodity hardware in a reliable, fault-tolerant manner

https://hadoop.apache.org/docs/r1.2.1/mapred_tutorial.html
Solution coverage:
Summary coverage:

DescriptionException TypeEntry MethodWeb pages

JobClient.runJob() has thrown an IOException

java.io.IOException
org.apache.hadoop.mapred.JobClient.runJob
592Web pages
IOExceptionJobClient.runJob592

JobClient.runJob() has thrown an IOException

java.io.IOException
13 frames hidden
org.apache.hadoop.mapred.JobClient.runJob
17Web pages
IOExceptionJobClient.runJob17

JobClient.runJob() has thrown an IOException

javax.security.auth.login.LoginException
6 frames hidden
org.apache.hadoop.mapred.JobClient.runJob
8Web pages
IOExceptionJobClient.runJob8

JobClient.runJob() has thrown an IOException

java.io.IOException
5 frames hidden
org.apache.hadoop.mapred.JobClient.runJob
5Web pages
IOExceptionJobClient.runJob5

JobClient.runJob() has thrown an IOException

java.io.IOException
27 frames hidden
org.apache.hadoop.mapred.JobClient.runJob
4Web pages
IOExceptionJobClient.runJob4

JobClient.runJob() has thrown an IOException

java.io.IOException
11 frames hidden
org.apache.hadoop.mapred.JobClient.runJob
1Web pages
IOExceptionJobClient.runJob1
Package nameClass namePatterns foundSolution coverageSummary coverage
org.apache.hadoop.mapredMapTask191
org.apache.hadoop.mapredJobClient105
org.apache.hadoop.mapredJobTracker42
org.apache.hadoop.mapredReduceTask36
org.apache.hadoop.mapredFileInputFormat31
org.apache.hadoop.mapredJobConf30
org.apache.hadoop.mapredMapTask$MapOutputBuffer26
org.apache.hadoop.mapredMapRunner12
org.apache.hadoop.mapredMapTask$NewOutputCollector8
org.apache.hadoop.mapredLineRecordReader7
org.apache.hadoop.mapredMapTask$NewDirectOutputCollector7
org.apache.hadoop.mapredJobClient$26
org.apache.hadoop.mapredTextInputFormat6
org.apache.hadoop.mapredMapTask$NewTrackingRecordReader6
org.apache.hadoop.mapredMapTask$TrackedRecordReader6
org.apache.hadoop.mapredMapTask$MapOutputBuffer$Buffer5
org.apache.hadoop.mapredJobInProgress5
org.apache.hadoop.mapredTextOutputFormat4
org.apache.hadoop.mapredMapTask$OldOutputCollector4
org.apache.hadoop.mapredTask4
org.apache.hadoop.mapredFileOutputFormat3
org.apache.hadoop.mapredIFile$Writer3
org.apache.hadoop.mapredSequenceFileInputFormat3
org.apache.hadoop.mapredReduceTask$NewTrackingRecordWriter2
org.apache.hadoop.mapredTaskLog2
org.apache.hadoop.mapredSequenceFileRecordReader2
org.apache.hadoop.mapredMerger2
org.apache.hadoop.mapredMapTask$MapOutputBuffer$SpillThread2
org.apache.hadoop.mapredCounters2
org.apache.hadoop.mapredMapOutputFile2
org.apache.hadoop.mapredTaskStatus2
org.apache.hadoop.mapredFileOutputCommitter2
org.apache.hadoop.mapredIFileOutputStream1
org.apache.hadoop.mapredReduceTask$OldTrackingRecordWriter1
org.apache.hadoop.mapredOutputCommitter1
org.apache.hadoop.mapredMerger$MergeQueue1
org.apache.hadoop.mapredSequenceFileOutputFormat1
org.apache.hadoop.mapredTask$ValuesIterator1
org.apache.hadoop.mapredReduceTask$31
org.apache.hadoop.mapredJobClient$11
org.apache.hadoop.mapredTask$NewCombinerRunner$OutputConverter1
org.apache.hadoop.mapredMerger$Segment1
org.apache.hadoop.mapredMapFileOutputFormat1
org.apache.hadoop.mapredJobClient$NetworkedJob1
org.apache.hadoop.mapredTaskAttemptID1
org.apache.hadoop.mapredReduceTaskStatus1
org.apache.hadoop.mapredTask$CombineOutputCollector1
org.apache.hadoop.mapredSpillRecord1
org.apache.hadoop.mapredTask$CombinerRunner1
org.apache.hadoop.mapredIFile$Reader1
Package nameClass nameMethod namePatterns foundSolution coverage
org.apache.hadoop.mapredJobClientrunJob24
org.apache.hadoop.mapredJobClientwriteSplits18
org.apache.hadoop.mapredJobClientsubmitJobInternal15
org.apache.hadoop.mapredJobClientsubmitJob14
org.apache.hadoop.mapredJobClientwriteNewSplits10
org.apache.hadoop.mapredJobClient<init>5
org.apache.hadoop.mapredJobClientwriteOldSplits4
org.apache.hadoop.mapredJobClientinit3
org.apache.hadoop.mapredJobClientgetJobUsingCluster3
org.apache.hadoop.mapredJobClientaccess$7002
org.apache.hadoop.mapredJobClientcopyAndConfigureFiles2
org.apache.hadoop.mapredJobClientgetJob2
org.apache.hadoop.mapredJobClientconfigureCommandLineOptions1
org.apache.hadoop.mapredJobClientcopyRemoteFiles1
org.apache.hadoop.mapredJobClientgetAllJobs1
Package nameClass nameMethod nameException TypePatterns foundSolution coverage
org.apache.hadoop.mapredJobClientrunJobInvalidInputException12
org.apache.hadoop.mapredJobClientrunJobIOException6
org.apache.hadoop.mapredJobClientrunJobFileAlreadyExistsException3
org.apache.hadoop.mapredJobClientrunJobNullPointerException1
org.apache.hadoop.mapredJobClientrunJobShell$ExitCodeException1
org.apache.hadoop.mapredJobClientrunJobConnectException1