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hadoop-user.lucene.apache.org
Recent threads
Re: Platform reliability with Hadoop (2 Replies)
lohit.vijayarenu — 120094527821 Jan 2008*
you might want to change hadoop.tmp.dir entry alone. since others are derived out of this, everything should be fine. i am wondering if hadoop.tmp.dir...
hadoop file system browser (7 Replies)
Cam Bazz — 120094415721 Jan 2008*
hello is there any utility to browse hadoop fs? Best Regards, -C.B....
how to terminate a program in hadoop? (4 Replies)
ma qiang — 120093660921 Jan 2008*
Dear colleagues: I use eclipse to develop some programs in hadoop, when exceptions took place such as death cycle, I don't know how to terminate ...
wang daming — 120092271421 Jan 2008*
I have setup the HDFS cluster under linux enviroment, but I need write files to the DFS from windows application, how can I achieve this? thanks...
ma qiang — 120091503221 Jan 2008*
Dear colleagues: I am writing some code about reading a table in hbase from the first row to the last . Can you tell me how ? Thank you !...
Billy — 120090482921 Jan 2008
I just download trunk and started testing and I get this in hbase log every block written show these 4 lines this makes the hbase log way to hard to w...
How to use hadoop wiht tomcat!! (1 Reply)
Sandhya Kishore — 120089942921 Jan 2008*
Hi, I am trying to develop a webapplication that submit jobs to HADOOP map/reduce. I have added hadoop.jar and all the dependencies to tomcat lib and ...
Does anyone have any experience with running a Map/Red node that is not also a DFS node? (2 Replies)
Jason Venner — 120088951221 Jan 2008*
We were thinking of doing this with some machines that do not have decent disks but have plenty of netbandwidth....
Re: Platform reliability with Hadoop (3 Replies)
lohit.vijayarenu — 120085596520 Jan 2008*
Wont you lose your blocks after reboot since /tmp gets cleaned up? Could this be the reason you see data corruption? Good idea is to configure DFS to ...
without insert method in HTable class (2 Replies)
ma qiang — 120082421820 Jan 2008*
Dear colleagues: I don't know how to insert new rows in a table, and there's no insert method in HTable class. Can you tell me how to insert...
Hbase FATAL error (3 Replies)
Billy — 120078485719 Jan 2008*
I been getting these errors from time to time seams like when the region servers are under a load for long time they start failing with this error. ni...
Reduce hangs (10 Replies)
Yunhong Gu1 — 120072347919 Jan 2008*
Hi, If someone knows how to fix the problem described below, please help me out. Thanks! I am testing Hadoop on 2-node cluster and the "reduce...
lohit.vijayarenu — 120067897418 Jan 2008
may be running on different input tell us if this is map reduce / data problem thanks, lohit - Original Message From: Ted Dunning To: Sent: Friday, Ja...
Matt Herndon — 120067710218 Jan 2008*
Hello, I'm trying to get Hadoop to process a 2 gig file but it seems to only be processing the first block. I'm running the exact Hadoop vmw...
the 127.0.1.1:60020 in HBase (6 Replies)
ma qiang — 120064539518 Jan 2008*
Dear colleagues; I run the code as described below: HBaseConfiguration conf = new HBaseConfiguration(); HBaseAdmin admin = new HBaseAdmin(conf); HTabl...
how to deploy hadoop on many PCs quickly? (9 Replies)
Bin YANG — 120061852718 Jan 2008*
Dear colleagues, Right now, I have to deploy ubuntu 7.10 + hadoop 0.15 on 16 PCs. One PC will be set as master, the others will be set as slaves. The ...
Ned Rockson — 120060132117 Jan 2008*
Recently I've been trying to autogenerate some data structures that will work for both C++ and Java. I've made many that work with Java, but...
about using HBase? (13 Replies)
ma qiang — 120057629017 Jan 2008*
Dear colleagues; Now,I have to use HBase in my map and reduce functions, but I don't know how to use. I have seen the examples in the FQA and org...
Single output file per reduce key? (3 Replies)
Myles Grant — 120055361917 Jan 2008*
Hello, I'd like me reduce tasks to each output a single file per key, containing the value. Each file would be named with the key. It appears tha...
copyFromLocal bug? (2 Replies)
Michael Di Domenico — 120054669717 Jan 2008*
I was trying to copy a bunch of data over to my hadoop installation and got the below error: [hadoop@node1 ~]$ hadoop/bin/hadoop dfs -copyFromLocal /e...