A Community for Hadoop Users
Discussion Forum (104)
| Discussions | Replies | Latest Activity |
|---|---|---|
starting hadoop daemonswhen i type this command to start the hadoop daemons : bin/start-all.shit make an error and say that JAVA_HOME is not seti set java_home at… Started by Khaled |
1 |
1 day ago Reply by Anantha Srivathsa N |
Seperate Server pools for Map and Reduce SystemsWe have lots of servers but have limited storage pool. My map jobs are handle lots of small input files (approx 300Mb Compressed) but the r… Started by Raj Vishwanathan |
2 |
Jul 27 Reply by Raj Vishwanathan |
Error when excuting mapreducehello to alli am writing a mapreduce program, but i want to execute it it gives this errorJul 19, 2010 5:06:31 PM org.apache.hadoop.mapred.… Started by Khaled |
0 | Jul 20 |
Generating Unique IDs with the RecordReadersHey everyoneI'm working on a project where I'm trying to generate unique sequential integer ids for the keys of a hadoop job. This must be… Started by Wesley |
0 | Jul 16 |
Hadoop... Text.toString() conversion problemsHi everyone, I hope this is the right place for my question. If not, please, feel free to ignore it ;) and I'm sorry for any inconvenienc… Started by Nikolay |
0 | Jul 16 |
Could not able to run the Mapreduce ExampleHi, I tried to execute the example given in http://hadoop.apache.org/common/docs/r0.20.1/mapred_tutorial.html as explaine… Started by Ramachandran |
0 | Jul 13 |
Map-ReduceI am trying to run the sample code that was given by Hadoop. I am using Ubintu 9.x for configuration, etc. when trying to built the jar fil… Started by B Mark Shehan R Cooray |
0 | Jul 9 |
Null value for DistributedCache.getLocalFiles method in hadoop-0.20.2Hi all,I upgraded the WordCountv2.0 example provided in the Map-Reduce tutorial (http://hadoop.apache.org/common/docs/r0.20.1/mapred_tutori… Started by Himanshu Gahlot |
2 |
Jul 8 Reply by Himanshu Gahlot |
New To Mapreduce: A Few Questions For Anyone Who Can HelpI am very new to MapReduce. I have played around with Pig and made some simple examples that work well but Pig’s functionality will most l… Started by T G |
0 | Jul 6 |
Output file contains output of mapper, not reducerHi Everyone, I have just started working wit hadoop a few week ago, and am in the process of writing my first map reduce program after comp… Started by Stephen Giguere |
2 |
Jul 2 Reply by Stephen Giguere |
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