[CHUKWA-132] Handle multiline output in Job History file

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Component/s: Data Processors

Environment

Redhat EL 5.1, Java 6

• Assignee: Cheng
• Reporter: Eric Yang
• Created: 14/Apr/09 17:27
• Updated: 15/Apr/09 17:42
• Resolved: 15/Apr/09 17:42

Description

When there are multi line output in the Job History file, the parser fails with exception like this:

MapAttempt TASK_TYPE="MAP" TASKID="task_200904060626_2141_m_000108" TASK_ATTEMPT_ID="attempt_200904060626_2141_m_000108_1" START_TIME="1239190934835" TRACKER_NAME="tracker_kry50024\.inktomisearch\.com:localhost/127\.0\.0\.1:39507" HTTP_PORT="50060" .
MapAttempt TASK_TYPE="MAP" TASKID="task_200904060626_2141_m_000108" TASK_ATTEMPT_ID="attempt_200904060626_2141_m_000108_1" TASK_STATUS="FAILED" FINISH_TIME="1239190949062" HOSTNAME="kry50024\.inktomisearch\.com" ERROR="java\.io\.IOException: MROutput/MRErrThread failed:java\.lang\.ArrayIndexOutOfBoundsException: -1
at org\.apache\.hadoop\.mapred\.lib\.KeyFieldBasedPartitioner\.hashCode(KeyFieldBasedPartitioner\.java:95)
at org\.apache\.hadoop\.mapred\.lib\.KeyFieldBasedPartitioner\.getPartition(KeyFieldBasedPartitioner\.java:87)
at org\.apache\.hadoop\.mapred\.MapTask$MapOutputBuffer\.collect(MapTask\.java:801)
at org\.apache\.hadoop\.streaming\.PipeMapRed$MROutputThread\.run(PipeMapRed\.java:378)

at org\.apache\.hadoop\.streaming\.PipeMapper\.map(PipeMapper\.java:87)
at org\.apache\.hadoop\.mapred\.MapRunner\.run(MapRunner\.java:50)
at org\.apache\.hadoop\.streaming\.PipeMapRunner\.run(PipeMapRunner\.java:36)
at org\.apache\.hadoop\.mapred\.MapTask\.runOldMapper(MapTask\.java:356)
at org\.apache\.hadoop\.mapred\.MapTask\.run(MapTask\.java:305)
at org\.apache\.hadoop\.mapred\.Child\.main(Child\.java:156)
" .
MapAttempt TASK_TYPE="CLEANUP" TASKID="task_200904060626_2141_m_000197" TASK_ATTEMPT_ID="attempt_200904060626_2141_m_000197_0" START_TIME="1239190961843" TRACKER_NAME="tracker_kry3083\.inktomisearch\.com:localhost/127\.0\.0\.1:60970" HTTP_PORT="50060" .
MapAttempt TASK_TYPE="CLEANUP" TASKID="task_200904060626_2141_m_000197" TASK_ATTEMPT_ID="attempt_200904060626_2141_m_000197_0" TASK_STATUS="SUCCESS" FINISH_TIME="1239190963602" HOSTNAME="/74\.6\.135\.128/kry3083\.inktomisearch\.com" STATE_STRING="cleanup" COUNTERS="

{(org\.apache\.hadoop\.mapred\.Task$Counter)(Map-Reduce Framework)[(SPILLED_RECORDS)(Spilled Records)(0)]}" .
Task TASKID="task_200904060626_2141_m_000197" TASK_TYPE="CLEANUP" TASK_STATUS="SUCCESS" FINISH_TIME="1239190963509" COUNTERS="{(org.apache.hadoop.mapred.Task$Counter)(Map-Reduce Framework)[(SPILLED_RECORDS)(Spilled Records)(0)]}

" .
Job JOBID="job_200904060626_2141" FINISH_TIME="1239190963510" JOB_STATUS="FAILED" FINISHED_MAPS="0" FINISHED_REDUCES="0" .

[cchunkException] :java.lang.StringIndexOutOfBoundsException: String index out of range: -1
at java.lang.String.substring(String.java:1938)
at org.apache.hadoop.chukwa.extraction.demux.processor.mapper.JobLog$JobLogLine.<init>(JobLog.java:114)
at org.apache.hadoop.chukwa.extraction.demux.processor.mapper.JobLog.parse(JobLog.java:39)
at org.apache.hadoop.chukwa.extraction.demux.processor.mapper.AbstractProcessor.process(AbstractProcessor.java:90)
at org.apache.hadoop.chukwa.extraction.demux.Demux$MapClass.map(Demux.java:94)
at org.apache.hadoop.chukwa.extraction.demux.Demux$MapClass.map(Demux.java:60)
at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:47)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:227)
at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2210)

[csource] :host.example.com
[ctags] :cluster="demo"

Sub-Tasks

• Create Job History Tailing Adaptor: Open