Hadoop > hdfs-user > March 2010

I'm facing issues while formatting the namenode. I've given hadoop.tmp.dir as /opt/hdfs. Below is the log output. linux-5e47:/usr/local/hadoop # ./bin/hadoop namenode -format 10/03/13 15:52:09 INFO ...

Hi, I tried to run the Java code and it doesn't work. I pasted the code below: public class testHadoop { public static final String DIR_HADOOP = "hdfs://my.machine.com"; public static final String ...

We have a working 10 node cluster and are trying to add an 11th box (insert Spinal Tap joke here). The box (Centos Linux) was built in an identical manner to the other 10 and has the same version of ...

Hello, Is there a reason for which 'hadoop dfs -get' will not output to stdout? I see 'hadoop dfs -put' can handle stdin. It would seem that dfs would have to also support outputing to stdout. ...

Hello How to specify not default (64 Mb) block size for fuse_dfs !? In hdfs-site.xml 32MB: <property <name dfs.block.size</name <value 33554432</value </property via command line hadoop dfs ...

Hi all, As my title shows, it seems that "{2009/12,2010/01}" is not supported in FileSystem.globStatus, but in my opinion, it would be better if hdfs can support this kind of path. Does hadoop has ...

I'm testing some scenarios where a very small cluster needs to replicate a lot of data due to a node going down. I'm observing pretty slow performance, and it seems like each node is sending one or ...

Can map/reduce read local file system? My map/reduce cannot read localhost file, is there any wrong in my code ? protected void map(Object arg0, Object arg1, Context context) throws IOException, ...

Hi, Can anyone please tell me the advantages of using Replication Pipeline as a replication scheme in HDFS ? Are there any know disadvantages.. ? I am basically trying to figure out why HDFS chose ...

Hi. The "http://$namenode:50070" web page, which is also known as "DFS home", works well, but the "Browse the filesystem" link doesn't work; The "Live Nodes" link points to a page which shows all the ...

Hi all, I just wanted to let you guys know that HDFS support has been added to the recently released version 0.8.5 of muCommander ( http://www.mucommander.com/ ), allowing you to browse, read and ...