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Re: Hadoop running the incorrect class - MapReduce - [mail # user]
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...Thanks Harsh. JarFinder helped me locating the guilty jar file. It was in the hadoop class path indeed but I didn't think it has a copy of the main class. Thanks for your help. Ahmed &...
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Author: Ahmed Eldawy,
2013-05-17, 00:08
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[MAPREDUCE-5253] Whitespace value entry in mapred-site.xml for name=mapred.reduce.child.java.opts causes child tasks to fail at launch - MapReduce - [issue]
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...Hi,Below is a patch for Hadoop v1.1.2. I'm new to this list, so if I need to write up a JIRA ticket for this, please let me know.The defect scenario is that if you enter any white spac...
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http://issues.apache.org/jira/browse/MAPREDUCE-5253
Author: Karl D. Gierach,
2013-05-16, 23:39
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Re: recursive list in java without block - MapReduce - [mail # user]
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...The FileSystem API doesn't provide a utility to do recursive listing yet, so you'd have to build it on your own. MR and the Fs Shell, both do seem to have inbuilt support for such a ut...
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Author: Harsh J,
2013-05-16, 22:59
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Re: Hadoop running the incorrect class - MapReduce - [mail # user]
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...Check your "hadoop classpath" output - check on the output if your jar was placed on it directly. Alternatively, use a tool such as https://github.com/mreid-moz/JarFinder, etc. to help...
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Author: Harsh J,
2013-05-16, 22:56
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Re: Question about writing HDFS files - MapReduce - [mail # user]
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...That is not true. HDFS writes are not staged to a local disk first before being written onto the DataNodes. The old architecture docs seem to suggest that the writes get staged to a local di...
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Author: Harsh J,
2013-05-16, 22:53
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Re: Installed Hadoop on Linux server - not able to see web UI - MapReduce - [mail # user]
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...Thanks. It is working on 50070 and 50030. ________________________________ From: Sandy Ryza To: [EMAIL PROTECTED]; Raj Hadoop Sent: Thursday, May 16, 2013 6:02 PM S...
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Author: Raj Hadoop,
2013-05-16, 22:15
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Question about writing HDFS files - MapReduce - [mail # user]
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...I seem to recall reading that when a MapReduce task writes a file, the blocks of the file are always written to local disk, and replicated to other nodes. If this is true, is this also...
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Author: John Lilley,
2013-05-16, 22:08
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Re: Installed Hadoop on Linux server - not able to see web UI - MapReduce - [mail # user]
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...Hi Raj, The web UIs are located on different ports than the RPC ports you specified. If you are using MR1, the HDFS UI is typically located on port 50070, and the MapReduce UI is...
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Author: Sandy Ryza,
2013-05-16, 22:02
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Installed Hadoop on Linux server - not able to see web UI - MapReduce - [mail # user]
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...Hi, I have installed Hadoop on a Linux server psedo-distributed mode. The map reduce word count example also succesfully ran. But i was not able to access the UI from my local windows brow...
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Author: Raj Hadoop,
2013-05-16, 21:58
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[MAPREDUCE-5130] Add missing job config options to mapred-default.xml - MapReduce - [issue]
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...I came across that mapreduce.map.child.java.opts and mapreduce.reduce.child.java.opts were missing in mapred-default.xml. I'll do a fuller sweep to see what else is missing before post...
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http://issues.apache.org/jira/browse/MAPREDUCE-5130
Author: Sandy Ryza,
2013-05-16, 21:24
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