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Re: Suitability of HDFS for live file store - MapReduce - [mail # user]
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...For your original use case, HDFS indeed sounded like an overkill. But once you start thinking of thumbnail generation, PDFs etc, MapReduce obviously fits the bill. If you w...
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Author: Vinod Kumar Vavilapalli,
2012-10-15, 23:25
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Re: possible resource leak in capacity scheduler - MapReduce - [mail # user]
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...Which version are you running? Can you enabled debug logging for RM and see what's happening? Thanks, +Vinod Kumar Vavilapalli Hortonworks Inc. http://hortonworks.com/ On O...
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Author: Vinod Kumar Vavilapalli,
2012-10-15, 23:13
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Re: API Design: getClusterMetrics - MapReduce - [mail # dev]
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...This is to help evolve the APIs easily. All apis have request and response objects, instead of passing in parameters directly. Some of the APIs clearly may not need this extra la...
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Author: Vinod Kumar Vavilapalli,
2012-10-10, 19:47
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[MAPREDUCE-4649] mr-jobhistory-daemon.sh needs to be updated post YARN-1 - MapReduce - [issue]
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...Even today, JHS is assuming that YARN_HOME will be same as HADOOP_MAPRED_HOME besides other such assumptions. We need to fix it....
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http://issues.apache.org/jira/browse/MAPREDUCE-4649
Author: Vinod Kumar Vavilapalli,
2012-10-05, 22:55
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Re: Run mr example wordcount error on hadoop-2.0.1 alpha HA - MapReduce - [mail # user]
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...The console output as well as the AM logs show that the TaskAttempts are failing because they are out of heap-space. See your configuration below, you should bump them up. ...
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Author: Vinod Kumar Vavilapalli,
2012-09-14, 17:43
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Re: Can't run PI example on hadoop 0.23.1 - MapReduce - [mail # user]
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...The AM corresponding to your MR job is failing continuously. Can you check the container logs for your AM ? They should be in ${yarn.nodemanager.log-dirs}/${application-id}/conta...
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Author: Vinod Kumar Vavilapalli,
2012-09-10, 22:53
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Re: Counters across all jobs - MapReduce - [mail # user]
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...Counters are per-job in Hadoop MapReduce. You need an external aggregator for such cross-job counters - for e.g. a node in Zookeeper. Also, is it just for display or your job-log...
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Author: Vinod Kumar Vavilapalli,
2012-09-10, 17:46
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Re: build failure - trying to build hadoop trunk checkout - MapReduce - [mail # user]
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...On Sep 10, 2012, at 2:43 AM, Tony Burton wrote: this happens in Kerberos?) As part of authenticating and generating tokens for clients, Kerberos needs, besides many other ...
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Author: Vinod Kumar Vavilapalli,
2012-09-10, 17:43
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[MAPREDUCE-3921] MR AM should act on the nodes liveliness information when nodes go up/down/unhealthy - MapReduce - [issue]
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http://issues.apache.org/jira/browse/MAPREDUCE-3921
Author: Vinod Kumar Vavilapalli,
2012-09-07, 22:10
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[MAPREDUCE-4580] Change MapReduce to use the yarn-client module - MapReduce - [issue]
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...Mapreduce needs to be changed to use the yarn-client module added via YARN-29....
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http://issues.apache.org/jira/browse/MAPREDUCE-4580
Author: Vinod Kumar Vavilapalli,
2012-09-07, 22:10
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