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From "Jiandan Yang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-7191) JobHistoryServer should log exception when loading/parsing history file failed
Date Wed, 06 Mar 2019 09:37:00 GMT
Jiandan Yang  created MAPREDUCE-7191:
----------------------------------------

             Summary: JobHistoryServer should log exception when loading/parsing history file
failed
                 Key: MAPREDUCE-7191
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-7191
             Project: Hadoop Map/Reduce
          Issue Type: Improvement
          Components: mrv2
            Reporter: Jiandan Yang 
            Assignee: Jiandan Yang 


I'm test rolling 2.7.2 to 3.2.0. 
RM& NM has upgrade to 3.2.0, JobHistoryServer is still 2.7.2.
When submitting MR job using 3.2.0 client I found JobHistory URL could not open, and showing
"Could not load history file hdfs://NameNode:8020/tmp/hadoop-yarn/staging/history3/done/2019/03/06/000000/job_1551697798944_0020****.jhist"

There are only loading log just like following and no exception info in log file of  JobHistoryServer.
{code:java}
2019-03-06 16:24:19,489 INFO org.apache.hadoop.mapreduce.v2.hs.CompletedJob: Loading job:
job_1551697798944_0020 from file: hdfs://NameNode:8020/tmp/hadoop-yarn/staging/history3/done/2019/03/06/000000/job_1551697798944_0020****.jhist
2019-03-06 16:24:19,489 INFO org.apache.hadoop.mapreduce.v2.hs.CompletedJob: Loading history
file: [hdfs://NameNode:8020/tmp/hadoop-yarn/staging/history3/done/2019/03/06/000000/job_1551697798944_0020****.jhist]
{code}

After I add some log when loading history file failed I get following exception. 3.2.0 write
jhist files using *binary* format,  but 2.7.2 using *json* format. After I set mapreduce.jobhistory.jhist.format=json
in 3.2.0 client configuration, I can get job info from jhs.

There is still no log in Hadoop-3.2.0, I think it's very helpful to add some log to debug.

Loading jhist file Exception is follows:
{code:java}
2019-03-06 16:51:55,664 WARN org.apache.hadoop.mapreduce.v2.hs.CompletedJob: Could not load
history file hdfs://NameNode:8020/tmp/hadoop-yarn/staging/history3/done/2019/03/06/000000/job_1551697798944_0020****.jhist
java.io.IOException: Incompatible event log version: Avro-Binary
        at org.apache.hadoop.mapreduce.jobhistory.EventReader.<init>(EventReader.java:71)
        at org.apache.hadoop.mapreduce.jobhistory.JobHistoryParser.parse(JobHistoryParser.java:139)
        at org.apache.hadoop.mapreduce.v2.hs.CompletedJob.loadFullHistoryData(CompletedJob.java:347)
        at org.apache.hadoop.mapreduce.v2.hs.CompletedJob.<init>(CompletedJob.java:101)
        at org.apache.hadoop.mapreduce.v2.hs.HistoryFileManager$HistoryFileInfo.loadJob(HistoryFileManager.java:450)
        at org.apache.hadoop.mapreduce.v2.hs.CachedHistoryStorage.loadJob(CachedHistoryStorage.java:180)
        at org.apache.hadoop.mapreduce.v2.hs.CachedHistoryStorage.access$000(CachedHistoryStorage.java:52)
        at org.apache.hadoop.mapreduce.v2.hs.CachedHistoryStorage$1.load(CachedHistoryStorage.java:103)
        at org.apache.hadoop.mapreduce.v2.hs.CachedHistoryStorage$1.load(CachedHistoryStorage.java:100)
        at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3568)
        at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2350)
        at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2313)
        at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2228)
        at com.google.common.cache.LocalCache.get(LocalCache.java:3965)
        at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3969)
        at com.google.common.cache.LocalCache$LocalManualCache.get(LocalCache.java:4829)
        at com.google.common.cache.LocalCache$LocalManualCache.getUnchecked(LocalCache.java:4834)
        at org.apache.hadoop.mapreduce.v2.hs.CachedHistoryStorage.getFullJob(CachedHistoryStorage.java:193)
        at org.apache.hadoop.mapreduce.v2.hs.JobHistory.getJob(JobHistory.java:217)
        at org.apache.hadoop.mapreduce.v2.app.webapp.AppController.requireJob(AppController.java:381)
        at org.apache.hadoop.mapreduce.v2.app.webapp.AppController.job(AppController.java:108)
        at org.apache.hadoop.mapreduce.v2.hs.webapp.HsController.job(HsController.java:104)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
{java}




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