Hadoop > hdfs-user > July 2010

Hi guys I am a stuck in my attempt to remove nodes from hdfs. I followed the steps in https://issues.apache.org/jira/browse/HDFS-1125 a) add node to dfs.hosts.exclude b) dfsadmin -refreshNodes c) ...

Hey HDFS gurus - I searched around the list archives and jira, but didn't see an existing discussion about this. I'm having issues where HDFS in general has free space, however, certain machines -- ...

Hi, I have a small cluster with 5 nodes and one node is working as NameNode as DataNode same time. On NameNode I load amount of data (100GB) to hdfs that is bigger than local space on the node left ...

Hi guys. I have more than a specific question. I am going to layout the steps I have taken. Please comment on what I can do better. I was trying to to add 5 nodes to my existing 10 node cluster and ...

Hello, It seems like everytime I'm writing a map class, I make some random mistake that triggers a generically unhelpful ClassNotFoundException that results in a large amount of frustration from ...

Hello: I have followed this link:http://code.google.com/p/hadoop-gpl- compression/wiki/FAQ to install lzo compression library,and copy hadoop-lzo-0.4.4.jar to $HADOOP_HOME/lib,and all files under ...

Hello： I got source code from http://github.com/kevinweil/hadoop-lzo，compiled them successfully,and then 1，copy hadoop-lzo-0.4.4.jar to directory:$HADOOP_HOME/lib of each master and slave 2，Copy all ...

Hello It seems I should send this mail here, got no response from common-user mail list yesterday. I have a hadoop(0.20.2) cluster running with 12 nodes . Today, when I checking the log of ...

Hello： I got source code from http://github.com/kevinweil/hadoop-lzo，compiled them successfully,and then 1，copy hadoop-lzo-0.4.4.jar to directory:$HADOOP_HOME/lib of each master and slave 2，Copy all ...

Hi, I have two questions: 1) When I try to compile hdfs_test.c file that comes with 0.20.2 distribution, it gives following errors: /usr/bin/ld: cannot find -lhdfs collect2: ld returned 1 exit status ...

Hi all, In my data node logs, it says PacketResponder is interrupt,and it cuase my data node to re-register to namenode. The following is the log: (Anyone has any clues ? Thanks ) 868_1195229 ...

Hi All, We are planning to hold the next Hadoop India User Group meet up on 31st July 2010 in Noida, India. The registration and event details are available at - ...

Hi, Am I right that combiners are supposed to return key/value types that reducers expect as an input? Lets say I have map reduce operation to calculate number of different ip that visited a resource ...

Hello： I got source code from http://github.com/kevinweil/hadoop-lzo，compiled them successfully,and then 1，copy hadoop-lzo-0.4.4.jar to directory:$HADOOP_HOME/lib of each master and slave 2，Copy all ...

Hi all, I'd like to use the cpp thrift of hdfs, but find that there's no reflection_limited_types.h which is included by hadoopfs_types.h -- Best Regards Jeff Zhang

Hi All, We are planning to hold the next Hadoop India User Group meet up on 31st July 2010 in Noida, India. The registration and event details are available at - ...

Today is your last chance to submit a CFP abstract for the 2010 Surge Scalability Conference. The event is taking place on Sept 30 and Oct 1, 2010 in Baltimore, MD. Surge focuses on case studies that ...

A quick reminder that there's one week left to submit your abstract for this year's Surge Scalability Conference. The event is taking place on Sept 30 and Oct 1, 2010 in Baltimore, MD. Surge focuses ...

Hi all, Hope that my question is not too silly or naive... From my impressions, it seems that the throughput when writing from a client not part of the cluster to HDFS is not the maximum achievable ...