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Hadoop + Fuse: Compilation errors - MapReduce - [mail # user]
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...Hi, I'm trying to install FUSE with Hadoop 1.0.3 and I'm facing some issues. I'm following the steps I have there: http://wiki.apache.org/hadoop/MountableHDFS I have extrac...
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Author: Jean-Marc Spaggiari,
2013-02-08, 14:23
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Re: Maximum Storage size in a Single datanode - MapReduce - [mail # user]
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...Hi, Also, think about the memory you will need in your DataNode to serve all this data... I'm not sure there is any server which can take that today. You need a certain amount of memor...
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Author: Jean-Marc Spaggiari,
2013-01-30, 12:21
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Re: reg max map task config - MapReduce - [mail # user]
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...Hi Harsh, Is there a recommanded way to configure this value? I think I read something like 0.7 x cores but I'm not 100% sure... JM 2013/1/28, Manoj Babu :...
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Author: Jean-Marc Spaggiari,
2013-01-28, 12:34
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Re: Problems - MapReduce - [mail # user]
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...Hi Sean, Will you be able to run the memtest86 on this VM? Maybe it's an issue with the way the VM is managing the memory? I ran HBase+Hadoop on a desktop with only 1.5G. So you ...
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Author: Jean-Marc Spaggiari,
2013-01-22, 12:14
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Re: Prolonged safemode - MapReduce - [mail # user]
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...Hi Tariq, I often have to force HDFS to go out of safe mode manually when I restart my cluster (or after power outage).... I never tought about reporting that ;) I'm using hadoop...
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Author: Jean-Marc Spaggiari,
2013-01-19, 23:38
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Re: Estimating disk space requirements - MapReduce - [mail # user]
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...20 nodes with 40 GB will do the work. After that you will have to consider performances based on your access pattern. But that's another story. JM 2013/1/18, Panshul Whispe...
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Author: Jean-Marc Spaggiari,
2013-01-18, 13:26
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Re: Estimating disk space requirements - MapReduce - [mail # user]
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...Hi Panshul, If you have 20 GB with a replication factor set to 3, you have only 6.6GB available, not 11GB. You need to divide the total space by the replication factor. Also, if ...
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Author: Jean-Marc Spaggiari,
2013-01-18, 12:36
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Re: does "fs -put " create subdirectories? - MapReduce - [mail # user]
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...Yes it does, you can just try ;) hadoop@node3:~/hadoop-1.0.3$ bin/hadoop fs -ls /user/ Found 1 items drwxr-xr-x - hbase supergroup 0 2013-01-03...
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Author: Jean-Marc Spaggiari,
2013-01-16, 16:58
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Re: Hadoop NON DFS space - MapReduce - [mail # user]
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...I think you can still run with the OS on another drive, or on a live USB drive, or even on the memory only, loaded from the network while the server is booting from the network drive, etc. N...
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Author: Jean-Marc Spaggiari,
2013-01-16, 13:13
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Re: Exit code 126? - MapReduce - [mail # user]
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...Thanks. I will see if I can migrate from 1.0.3 to something more recent... JM 2013/1/14, Dave Shine :...
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Author: Jean-Marc Spaggiari,
2013-01-14, 14:45
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