May 2010

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14 discussions - 57 posts

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18
Fuse-DFS

Hi, I have been following the following URL to mount an HDFS using fuse- dfs: http://wiki.apache.org/hadoop/MountableHDFS I have had many problems trying to build it but have managed to get through ...

Seraph Imalia
May 5, 2010 at 12:38 pm
May 12, 2010 at 3:36 pm
4
Problem compiling from source

Hi All, For some reason, my hdfs source code can't compile anymore. ~1-2 weeks ago it was compiling fine but now it's not. I haven't made any changes to my code since I last compiled. When I do ant ...

Harold Lim
May 21, 2010 at 4:24 am
May 22, 2010 at 6:14 pm
4
Is it possible to recover name node just using the meta data in a new machine

Hi all, I'd like to recover the name node in another new machine. I copy the meta data from the old name node to the new name node, and then modify the configuration (including the fs.default.name). ...

Jeff Zhang
May 21, 2010 at 4:35 am
May 21, 2010 at 5:19 am
4
HDFS Read ThroughPut and DISK Read ThroughPut

Hi Is there a relationship between HDFS Read throught put and Disk Read throughput. If yes what would be that. Lets say we have a disk giving us 120 MB/s And a Cluster of 6 Nodes Each Node having 6 ...

Rohan Rai
May 14, 2010 at 8:24 am
May 14, 2010 at 11:50 pm
4
HDFS on raw device

Hii Can HDFS be give path of raw device, say can I set dfs.data.dir to /dev/sda3 or something like that Thanks and regards Saurabh Agarwal

Saurabh Agarwal
May 12, 2010 at 11:58 am
May 13, 2010 at 2:58 am
2
Re: HDFS-Fuse/virtual machine images

Bastian Lorenz
May 11, 2010 at 2:42 pm
May 15, 2010 at 3:47 am
2
SecondaryNameNode can not been changed once deployed ?

Hi all, At first I have the name node and secondary name node on the same machine, now I want to move the secondary name node to another machine, but find the following errors in the log of the new ...

Jeff Zhang
May 14, 2010 at 2:11 am
May 14, 2010 at 6:37 pm
2
Data sync question

Hello, Can anyone share how do they sync two different Hadoop clusters (ex. production and disaster recovery) for the same data? Thanks.

Atreju
May 4, 2010 at 10:27 pm
May 5, 2010 at 12:51 am
1
Thrift gateway - status? Compared to other alternatives?

Hi! What's the status of the Thrift gateway for HDFS (http://wiki.apache.org/hadoop/HDFS-APIs)? My google karma seems to be bad because I'm not getting many hits from people using it. Is it stable? ...

Erik Forsberg
May 20, 2010 at 8:29 am
May 20, 2010 at 8:41 am
1
Namenode UI - Browse File System not working in psedo-dist cluster..

Thanks, Gokul Hi, The "Browse File System" link in NameNode UI (http://namenode:50070) is not working when I run NameNode and 1 DataNode in the same system (Pseudo-distributed mode). I thought it ...

Gokulakannan M
May 12, 2010 at 11:28 am
May 12, 2010 at 5:15 pm
1
fuse-dfs again

Hi, We are testing hdfs cluster and want to make it transparent to regular storage users. Looks like fuse-dfs under contrib is a good solution. Hadoop-0.20.2 I compile it with: Jdk 1.6.0, both u13 ...

Yudong Liu
May 7, 2010 at 1:32 am
May 7, 2010 at 3:14 pm
0
hdfs C Api's

Hi all, I am new to hdfs. Can somebody please guide me through the process of using hdfs c api's. If possible could somebody give me a basic program using c API's and give me the instructions to how ...

Vidur Goyal
May 27, 2010 at 11:51 am
May 27, 2010 at 11:51 am
0
bin/start-dfs.sh do not support -importCheckpoint ?

Hi all, I loo the start-dfs.sh, it seems that it only support three start mode : regular , upgrade and rollback. So why here do not support importCheckpoint ? what is the consideration ? -- Best ...

Jeff Zhang
May 21, 2010 at 6:37 am
May 21, 2010 at 6:37 am
0
BufferStream from Hadoop file

Hi, I develop an application that receive a stream file from Hadoop. The client code: <html <head <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" <title Prueba video</title </head ...

Miguel Ángel Álvarez de la Concepción
May 15, 2010 at 11:49 am
May 15, 2010 at 11:49 am