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[MAPREDUCE-4931] Add user-APIs for classpath precedence control - MapReduce - [issue]
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...The feature config from MAPREDUCE-1938 of allowing tasks to start with user-classes-first is fairly popular and can use its own API hooks in Job/JobConf classes, making it easier to discover...
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http://issues.apache.org/jira/browse/MAPREDUCE-4931
Author: Harsh J,
2013-03-29, 15:29
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Re: FSDataOutputStream hangs in out.close() - MapReduce - [mail # user]
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...Same data does not mean same block IDs across two clusters. I'm guessing this is cause of some issue in your code when wanting to write to two different HDFS instances with the same client. ...
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Author: Harsh J,
2013-03-27, 17:55
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Re: FSDataOutputStream hangs in out.close() - MapReduce - [mail # user]
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...You can try to take a jstack stack trace and see what its hung on. I've only ever noticed a close() hang when the NN does not accept the complete-file call (due to minimum replication not be...
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Author: Harsh J,
2013-03-27, 12:24
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Re: Help on submitting a patch for an unassigned bug - MapReduce - [mail # dev]
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...Hi Niranjan, You can work on these by submitting a patch directly to the ticket. A committer/reviewer will assign the issue to you the on first contribution time on each project, and t...
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Author: Harsh J,
2013-03-26, 10:28
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Re: Yarn Writing ApplicationMaster, Client Exception "URISyntaxException: Expected scheme name at index 0" - MapReduce - [mail # user]
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...YARN does not seem to be checking for a fully qualified path when you pass it yours and ends up breaking. The problem is easily reproducible with the two transforming calls from ConverterUti...
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Author: Harsh J,
2013-03-26, 00:29
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Re: DataNode heartbeat average time peaks - MapReduce - [mail # user]
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...Worst case if it puts too much strain: randomly failing clients and missing DN heartbeats leading to unnecessary dead node appearances. Worth using a release with HDFS-1457 in or patching yo...
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Author: Harsh J,
2013-03-25, 16:32
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Re: Rack Awareness - MapReduce - [mail # user]
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...Have you locally tested the script? What do you mean by "not work"? Do you not see it loaded, not see it send back proper values, etc. - what? P.s. What version? P.s. User questi...
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Author: Harsh J,
2013-03-25, 12:00
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Re: shuffling one intermediate pair to more than one reducer - MapReduce - [mail # dev]
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...This one is rather easy. Not sure why you'd open a JIRA for a request. JIRA is to be used for feature requests and bug/improvement requests. Also, wasn't this discussed some time back ...
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Author: Harsh J,
2013-03-25, 05:14
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Re: Child JVM memory allocation / Usage - MapReduce - [mail # user]
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...The MapTask may consume some memory of its own as well. What is your io.sort.mb (MR1) or mapreduce.task.io.sort.mb (MR2) set to? On Sun, Mar 24, 2013 at 3:40 PM, nagarjuna kanamarlapud...
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Author: Harsh J,
2013-03-25, 04:56
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Re: Hadoop-2.x native libraries - MapReduce - [mail # user]
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...If you're using a tarball, you'll need to build a native-added tarball yourself with "mvn package -Pdist,native,docs -DskipTests -Dtar" and then use that. Alternatively, if you're inte...
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Author: Harsh J,
2013-03-25, 04:55
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