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Re: Read namenode data from primary memory - MapReduce - [mail # user]
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...Hi Aditya: This command line may help you: hadoop dfsadmin --saveNamespace you should firstly perform it in safe mode. &n...
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Author: Ling Kun,
2013-05-14, 06:48
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Re: When and who move the reduce output file part-0000X to the final output directory - MapReduce - [mail # user]
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...Thanks Harsh! your reply helps me a lot. Kun Ling On Fri, May 10, 2013 at 1:26 PM, Harsh J wrote: http://www.lingcc.com...
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Author: Ling Kun,
2013-05-10, 05:40
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When and who move the reduce output file part-0000X to the final output directory - MapReduce - [mail # user]
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...Dear all, I am looking into the MR work flow, and want to know more details about the reduce output data copy . Here is my question. Fo...
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Author: Ling Kun,
2013-05-10, 03:19
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Re: How can I add a new hard disk in an existing HDFS cluster? - MapReduce - [mail # user]
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...hi,Joarder Kamal: The following steps may help. 1. Stop your datanode daemon which you want to add a new HDD. 2. modify the data.dfs.dir property in hd...
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Author: Ling Kun,
2013-05-06, 02:52
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Re: error while running TestDFSIO - MapReduce - [mail # user]
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...I have got the same problem. And also need help. Ling Kun On Sat, Apr 20, 2013 at 8:35 AM, kaveh minooie wrote: http://www.lingcc.com...
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Author: Ling Kun,
2013-04-20, 01:14
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Re: What is the difference between URI, Home Directory, Working Directory in FileSystem.java or HDFS - MapReduce - [mail # user]
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...Dear Daryn Sharp, Your reply helps me a lot for code reading of the HDFS and FileSystem interface. Thanks. yours, Ling Kun On Thu, Apr 11,...
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Author: Ling Kun,
2013-04-19, 09:38
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Any ideas about Performance optimization inside Hadoop framework based on the NFS-like Shared FileSystem - MapReduce - [mail # user]
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...Dear all, I am writing to ask for 1. Any ideas about Performance optimization inside Hadoop framework based on the NFS-like Shared FileSystem 2. And ...
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Author: Ling Kun,
2013-04-19, 09:18
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What is the difference between URI, Home Directory, Working Directory in FileSystem.java or HDFS - MapReduce - [mail # user]
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...Dear all, I am a little confusing about the URI, Home Directory and Working Directory in the FileSystem.java or HDFS. I have listed my understanding about these con...
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Author: Ling Kun,
2013-04-11, 10:33
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Re: protect from accidental deletes - MapReduce - [mail # user]
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.../trash is a good choice. Ling Kun On Tue, Apr 2, 2013 at 8:43 AM, Robert Hamilton wrote: http://www.lingcc.com...
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Author: Ling Kun,
2013-04-02, 01:10
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Re: Why In-memory Mapoutput is necessary in ReduceCopier - MapReduce - [mail # dev]
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...Dear Ravi and all, Thanks very much for your kindly reply. I am currently concern about whether it is possible to eliminate the HTTP GET method using some other wa...
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Author: Ling Kun,
2013-03-12, 01:42
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