Enhancement idea: Additional InputType

2008-10-15 Thread Mark V
Hi Group, Thanks for the effort placed into making Hadoop available, and for the tips and suggestions posted to this mailing list. I'm currently looking into using Hadoop and, along the way, writing a Ruby DSL for Cascading (www.cascading.org). Some homework has generated two related ideas. I'll

Re: Why did I only get 2 live datanodes?

2008-10-15 Thread David Wei
It seems that this is not the point. ;=( And in this case, my cluster is really easy to crash СP 写道: > According to the cofiguration settings manaul in this website > http://www.michael-noll.com/wiki/Running_Hadoop_On_Ubuntu_Linux_(Multi-Node_Cluster) > i think it sould be > > Master > Slave1

Re: hadoop index org/apache/lucene/store/Directory NoClassDefFoundError

2008-10-15 Thread chenlbspace
Thinks, imcaptor and Kyle. I add lucene-core-2.3.1.jar to lib, It can't correct run, but, suddenly no any error the day of tomorrow 2008-10-16 chenlbspace 发件人: chenlbspace 发送时间: 2008-10-10 16:35:40 收件人: core-user@hadoop.apache.org 抄送: 主题: hadoop index org/apache/lucene/store/Direct

Re: Why did I only get 2 live datanodes?

2008-10-15 Thread David Wei
only the IPs of each node. For example: 192.168.52.129 192.168.49.40 192.168.55.104 192.168.49.148 They are totally different in hardware conf., and is that matter? Thx! David ?P 写道: > What is your configuration in $HADOOP_HOME/conf/salves ? > > - Original Message - > From: "David Wei"

Re: Why did I only get 2 live datanodes?

2008-10-15 Thread ?P
What is your configuration in $HADOOP_HOME/conf/salves ? - Original Message - From: "David Wei" <[EMAIL PROTECTED]> To: Sent: Thursday, October 16, 2008 11:05 AM Subject: Why did I only get 2 live datanodes? We had installed hadoop on 4 machines, and one of them has been chosen to b

Why did I only get 2 live datanodes?

2008-10-15 Thread David Wei
We had installed hadoop on 4 machines, and one of them has been chosen to be master and also slaves. The rest of machines are configured as slaves. But it is strange that we can only see 2 live nodes on web UI:http://192.168.52.129:50070/dfshealth.jsp(master machine). When we try to refresh the

Re: hadoop index org/apache/lucene/store/Directory NoClassDefFoundError

2008-10-15 Thread Kyle Lau
I ran into the same problem today. Found a solution that works: bin/hadoop jar -libjars hadoop-xxx-index.jar -inputPaths... E.g., in your particular case, you command will look like: bin/hadoop jar -libjars lib/lucene-core-2.3.1.jar contrib/index/hadoop-0.17.1-index.jar -inputPaths src/contrib

Re: distcp logs

2008-10-15 Thread Chris Douglas
-log -C On Oct 15, 2008, at 4:10 PM, Sriram Rao wrote: Hi, when using distcp, we often find that the distcp logs are in the target dir. root. for instance, bin/hadoop dist src dest We end up with: dest/_distcp_logs_... Is there a way to (1) tell distcp to put the logs elsewhere and (2) nu

How to change number of mappers in Hadoop streaming?

2008-10-15 Thread Steve Gao
Is there a way to change number of mappers in Hadoop streaming command line? I know I can change hadoop-default.xml:   mapred.map.tasks   10   The default number of map tasks per job.  Typically set   to a prime several times greater than number of available hosts.   Ignored when mapred.job.track

Simple MapReduce example failed

2008-10-15 Thread Lucas Di Pentima
Hello all, I'm new to this list and to Hadoop too. I'm testing some basic configurations before I start to own my own experiments. I've installed a Hadoop cluster of 2 machines as explained here: http://www.michael-noll.com/wiki/Running_Hadoop_On_Ubuntu_Linux_(Multi-Node_Cluster) I'm not using U

distcp logs

2008-10-15 Thread Sriram Rao
Hi, when using distcp, we often find that the distcp logs are in the target dir. root. for instance, bin/hadoop dist src dest We end up with: dest/_distcp_logs_... Is there a way to (1) tell distcp to put the logs elsewhere and (2) nuke the logs when done? Sriram

Chukwa Support

2008-10-15 Thread Alex Loddengaard
I'm trying to play with Chukwa, but I'm struggling to get anything going. I've been operating off of the wiki entry (< http://wiki.apache.org/hadoop/Chukwa_Quick_Start>), making revisions as I go along. It's unclear to me how to 1) create an adapter and 2) start HICC (see the wiki for more infor

Re: Hadoop User Group (Bay Area) Oct 15th

2008-10-15 Thread Bhupesh Bansal
Hi , I didn't RSVP for this event. I would like to join with 2 of my colleagues. Please let us know if we can ? Best Bhupesh On 10/15/08 11:56 AM, "Steve Gao" <[EMAIL PROTECTED]> wrote: > I am excited to see the slides. Would you send me a copy? Thanks. > > --- On Wed, 10/15/08, Nishant Kh

Re: Hadoop User Group (Bay Area) Oct 15th

2008-10-15 Thread Steve Gao
I am excited to see the slides. Would you send me a copy? Thanks. --- On Wed, 10/15/08, Nishant Khurana <[EMAIL PROTECTED]> wrote: From: Nishant Khurana <[EMAIL PROTECTED]> Subject: Re: Hadoop User Group (Bay Area) Oct 15th To: core-user@hadoop.apache.org Date: Wednesday, October 15, 2008, 9:45 AM

RE: hbase

2008-10-15 Thread Jim Kellerman (POWERSET)
In the future, you will generally get a quicker answer to hbase questions by subscribing to [EMAIL PROTECTED] There are a couple of ways for a non-hadoop client to access hbase: - via Thrift - via the REST interface - install hbase on the client with configuration files that point to your hbase

Re: Hadoop with image processing

2008-10-15 Thread Enis Soztutar
From my understanding of the problem, you can - keep the image binary data in sequence files - copy the image whose similar images will searched to dfs with high replication. - in each map, calculate the similarity to the image - output only the similar images from the map. - no need a reduce st

Hadoop with image processing

2008-10-15 Thread mrasitozdas
!!! MEMBERS OF core-user@hadoop.apache.org, DON'T READ THIS Hi to all, I started to work on a hadoop-based project. In our application, there are a huge number of images with a regular pattern, differing in 4 parts/blocks. System takes an image as input and looks for a similar im

Hadoop with image processing

2008-10-15 Thread Raşit Özdaş
Hi to all, I'm a new subscriber of the group, I started to work on a hadoop-based project. In our application, there are a huge number of images with a regular pattern, differing in 4 parts/blocks. System takes an image as input and looks for a similar image, considering if all these 4 parts ma

Re: Hadoop User Group (Bay Area) Oct 15th

2008-10-15 Thread Nishant Khurana
I would love to see the slides too. I am specially interested in implementing database joins with Map Reduce. On Wed, Oct 15, 2008 at 7:24 AM, Johan Oskarsson <[EMAIL PROTECTED]> wrote: > Since I'm not based in the San Francisco I would love to see the slides > from this meetup uploaded somewhere

Re: graphics in hadoop

2008-10-15 Thread chandravadana
Thanks steve.. will try working on the patch.. S.Chandravadana Steve Loughran wrote: > > chandravadana wrote: >> ya.. will write up in hadoop wiki.. >> is there a way other than copying from local filesystem to hdfs... >> like writing directly to hdfs...? >> > > Can you patch jfreechar

Re: Hadoop User Group (Bay Area) Oct 15th

2008-10-15 Thread Johan Oskarsson
Since I'm not based in the San Francisco I would love to see the slides from this meetup uploaded somewhere. Especially the database join techniques talk sounds very interesting to me. /Johan Ajay Anand wrote: > The next Bay Area User Group meeting is scheduled for October 15th at > Yahoo! 2821 M

Re: DataNode Problem

2008-10-15 Thread ZhiHong Fu
But another datanode node2 's log file is different. It shows as follows: 2008-10-15 10:42:48,659 WARN org.apache.hadoop.dfs.DataNode: org.apache.hadoop.ipc.RemoteException: java.io.IOException: ProcessReport from unregisterted node: 192.168.1.3:50010 at org.apache.hadoop.dfs.FSNamesystem.

Re: DataNode Problem

2008-10-15 Thread ZhiHong Fu
This is the content of node4 log files: 2008-10-15 16:18:59,406 INFO org.apache.hadoop.dfs.DataNode: SHUTDOWN_MSG: / SHUTDOWN_MSG: Shutting down DataNode at node4.cluster1domain/192.168.1.5

Re: DataNode Problem

2008-10-15 Thread Samuel Guo
please check the logs of the nodes that didn't come up. On Wed, Oct 15, 2008 at 6:46 PM, ZhiHong Fu <[EMAIL PROTECTED]> wrote: > Yes ,Thanks, I have tried as you suggested. and I leave the safemode , but > when i run bin/hadoop dfsadmin -report, There still is no datanode > available. > > 2008/1

Re: DataNode Problem

2008-10-15 Thread ZhiHong Fu
Yes ,Thanks, I have tried as you suggested. and I leave the safemode , but when i run bin/hadoop dfsadmin -report, There still is no datanode available. 2008/10/15 Prasad Pingali <[EMAIL PROTECTED]> > hello, > The report shows your dfs is not yet started. Sometimes it may take a > minute or tw

Re: Need reboot the whole system if adding new datanodes?

2008-10-15 Thread Steve Loughran
Amit k. Saha wrote: On Wed, Oct 15, 2008 at 9:09 AM, David Wei <[EMAIL PROTECTED]> wrote: It seems that we need to restart the whole hadoop system in order to add new nodes inside the cluster. Any solution for us that no need for the rebooting? From what I know so far, you have to start the HD

Re: graphics in hadoop

2008-10-15 Thread Steve Loughran
chandravadana wrote: ya.. will write up in hadoop wiki.. is there a way other than copying from local filesystem to hdfs... like writing directly to hdfs...? Can you patch jfreechart to write directly to HDFS files? That is the only way to do it right now, unless you can mount the HFDS filesy

Re: DataNode Problem

2008-10-15 Thread Prasad Pingali
hello, The report shows your dfs is not yet started. Sometimes it may take a minute or two to start dfs on a small cluster. Did you wait for sometime for dfs to start and leave safe mode? - Prasad. On Wednesday 15 October 2008 01:57:44 pm ZhiHong Fu wrote: > Hello: > > I have installed

hbase

2008-10-15 Thread chandra
hi Is this instance possible? suppose Hbase runs on hadoop and the data is read/written to hbase. can it be possible for a seperate client program(that does not run on hadoop) to read/write data from hbase. -- Best Regards S.Chandravadana This e-mail and any files transmitted with it are for

DataNode Problem

2008-10-15 Thread ZhiHong Fu
Hello: I have installed hadoop on a cluster which hava 7 nodes, one is namenode and the other 6 nodes are datanode . and At that time It runs normally, and also I runned the wordcount example, It's good. but today I want to run a mapred application , It reports error. and I found some da