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Lost metadata of data block - HDFS - [mail # dev]
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...Hi all, How can I recover the meta info of one data block, assuming I only have 1 replica of that data block in the HDFS? Thanks,...
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Author: Vivi Lang,
2012-11-12, 22:52
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Re: Create a data block in a certain data node - HDFS - [mail # dev]
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...Yes, I know the which block is corrupted and want to rewrite the content of the block. (asuming the replication factor of the related file is 1) On Fri, Nov 9, 2012 at 12:33 PM,...
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Author: Vivi Lang,
2012-11-09, 19:57
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Re: Create a data block in a certain data node - HDFS - [mail # dev]
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...thxs for the replying, what i want to do is, for example, I have a file which already in hdfs, this file have lots of blocks, but I know some parts( and the related offset ) of this file is ...
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Author: Vivi Lang,
2012-11-09, 17:37
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Re: Create a data block in a certain data node - HDFS - [mail # dev]
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...Sorry, I found the previous one is full of typo and hard to understand. I will clarify my question: If I have got a inputstream in a datanode (and this stream contains exactly 64MB's d...
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Author: Vivi Lang,
2012-11-09, 01:49
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Create a data block in a certain data node - HDFS - [mail # dev]
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...Hi all, If I want have get a inputstream in a datanode (and this should contains exactly 64MB data which I want to replace the content of an existing data block to store that con...
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Author: Vivi Lang,
2012-11-08, 23:15
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How to convert the local block to InputStream - HDFS - [mail # dev]
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...Hi guys, I would like to know if I need read certain block b1 in datanode n1 and b1 has a replica in datanode n1, how can I get that work? For example, I want to encode block b1 in datanode ...
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Author: Vivi Lang,
2012-10-31, 21:37
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Re: A question about reading one block - HDFS - [mail # dev]
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...Please ignore the previous email which I did not describe the problem clearly. On Wed, Oct 31, 2012 at 3:05 PM, Vivi Lang wrote: ...
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Author: Vivi Lang,
2012-10-31, 21:31
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Re: A question about reading one block - HDFS - [mail # dev]
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...Hi, thks for the replying. Is there any function can help me to create a InputStream for a certain Block which stored in a certain datanode Thanks, On Sat, Oct 27, 2012 at 9:41 P...
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Author: Vivi Lang,
2012-10-31, 20:05
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A question about reading one block - HDFS - [mail # dev]
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...Hi guys, I am writing a program which need the data of several specific blocks (I know the blockinfo of those blocks), if I use the Hadoop 0.20, is there any funtion which can he...
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Author: Vivi Lang,
2012-10-26, 20:49
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Question about - HDFS - [mail # dev]
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...Hi all, Is there anyone who can tell me that when we lanuch a mapreduce task, for example, wordcount, after the JobClient obtained the block locations (the related hosts/datanodes are ...
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Author: Vivi Lang,
2012-09-13, 00:10
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