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[MAPREDUCE-3115] OOM When the value for the property "mapred.map.multithreadedrunner.class" is set to MultithreadedMapper instance. - MapReduce - [issue]
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...When we set the value for the property mapred.map.multithreadedrunner.class as instance of MultithreadedMapper, using MultithreadedMapper.setMapperClass(), it simply throws IllegalArgumentEx...
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http://issues.apache.org/jira/browse/MAPREDUCE-3115
Author: Bhallamudi Venkata Siva K...,
2012-12-03, 05:54
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[MAPREDUCE-4040] History links should use hostname rather than IP address. - MapReduce - [issue]
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...While navigating from web page (eg: /cluster/app/<app-id> ) to HS, browser displays IP address rather than hostname.JobHistoryUtils.javaif (address.getAddress().isAnyLocalAddress() || ...
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http://issues.apache.org/jira/browse/MAPREDUCE-4040
Author: Bhallamudi Venkata Siva K...,
2012-10-11, 18:48
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[MAPREDUCE-4395] Possible NPE at ClientDistributedCacheManager#determineTimestamps - MapReduce - [issue]
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...ClientDistributedCacheManager#determineTimestampsURI[] tfiles = DistributedCache.getCacheFiles(job);It may be possible that tfiles array contains null as it's entry, and subsequently leads t...
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http://issues.apache.org/jira/browse/MAPREDUCE-4395
Author: Bhallamudi Venkata Siva K...,
2012-07-18, 12:49
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Can we use String.intern inside WritableUtils#readString()? - MapReduce - [mail # dev]
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...Hi All, I noticed that WritableUtils.readString(), while deserializing the strings, creates a string object every time. But there may be applications, which serialize a ...
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Author: Bhallamudi Venkata Siva K...,
2012-07-12, 13:02
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[MAPREDUCE-4389] Map only jobs should work even for MapOutput(Key|Value)Class configuration - MapReduce - [issue]
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...I have written a Map only job and have set MapOutput(Key|Value)Class.Job was passing when I set TextOutputFormat, however, when I changed the OF to SequenceFileOutputFormat, job started fail...
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http://issues.apache.org/jira/browse/MAPREDUCE-4389
Author: Bhallamudi Venkata Siva K...,
2012-07-03, 02:34
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[MAPREDUCE-2346] JobClient's isSuccessful and isComplete API's can throw NPE in some cases - MapReduce - [issue]
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...Description: Submit a job to the job tracker and let the job complete its execution through one of the job client's submitJob APIs. Jobclient returns a handle to the job, in the form of a Ru...
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http://issues.apache.org/jira/browse/MAPREDUCE-2346
Author: Bhallamudi Venkata Siva K...,
2012-05-29, 18:50
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[MAPREDUCE-3130] Output files are not moved to job output directory after task completion - MapReduce - [issue]
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...When MultipleOutputs (OutputFormat set to TextOutputFormat) is used to write output files to different namedOutputFiles, turned off normal output file generation(i.e.part-r-<#reduce>) ...
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http://issues.apache.org/jira/browse/MAPREDUCE-3130
Author: Bhallamudi Venkata Siva K...,
2012-05-28, 05:40
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[MAPREDUCE-3870] Invalid App Metrics - MapReduce - [issue]
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...I have observed incorrect Apps Completed and Apps Pending metrics when an application has failed or finished (successful) after multiple attempts(failures)....
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http://issues.apache.org/jira/browse/MAPREDUCE-3870
Author: Bhallamudi Venkata Siva K...,
2012-05-22, 14:05
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[MAPREDUCE-4071] NPE while executing MRAppMaster shutdown hook - MapReduce - [issue]
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...While running the shutdown hook of MRAppMaster, hit NPEException in thread "Thread-1" java.lang.NullPointerException at org.apache.hadoop.mapreduce.v2.app.MRAppMaster$ContainerAllocatorRoute...
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http://issues.apache.org/jira/browse/MAPREDUCE-4071
Author: Bhallamudi Venkata Siva K...,
2012-05-22, 09:16
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[MAPREDUCE-4002] MultiFileWordCount job fails if the input path is not from default file system - MapReduce - [issue]
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...In the MultiFileWordCount#CombineFileLineRecordReader, filesystem object has been initialized in the following wayfs = FileSystem.get(context.getConfiguration());This causes, fs to be initia...
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http://issues.apache.org/jira/browse/MAPREDUCE-4002
Author: Bhallamudi Venkata Siva K...,
2012-05-21, 04:51
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