All map reduce tasks are failing if we give invalid path jar file for Job
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Key: MAPREDUCE-2297
URL: https://issues.apache.org/jira/browse/MAPREDUCE-2297
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: tasktracker
Affects Versions: 0.20.2
Reporter: Devaraj K
Priority: Minor
This can be reproduced by giving the invalid jar file for the Job or it can be
reproduced from hive.
In hive-default.xml
<property>
<name>hive.aux.jars.path</name>
<value></value>
<description>Provided for adding auxillaryjarsPath</description>
</property>
If we configure an invalid path for jar file, It is making all map reduce tasks
to fail even those jobs are not depending on this jar file and it is giving the
below exception.
{code:xml}
hive> select * from a join b on(a.b=b.c);
Total MapReduce jobs = 1
Launching Job 1 out of 1
Number of reduce tasks not specified. Estimated from input data size: 1
In order to change the average load for a reducer (in bytes):
set hive.exec.reducers.bytes.per.reducer=<number>
In order to limit the maximum number of reducers:
set hive.exec.reducers.max=<number>
In order to set a constant number of reducers:
set mapred.reduce.tasks=<number>
java.io.FileNotFoundException: File does not exist: /user/root/grade.jar
at
org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:495)
at
org.apache.hadoop.filecache.DistributedCache.getTimestamp(DistributedCache.java:509)
at
org.apache.hadoop.mapred.JobClient.configureCommandLineOptions(JobClient.java:651)
at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:783)
at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:752)
at org.apache.hadoop.hive.ql.exec.ExecDriver.execute(ExecDriver.java:698)
at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:107)
at org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:64)
{code}
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