Re: querying by column value rather than key value

2008-05-30 Thread shimon golan
, say you have a web-form where users can search for other users by last name, name:last being one of your columns. This is an especially bad case for using mapreduce to scan the full table. -- Jim On Thu, May 29, 2008 at 1:06 PM, shimon golan [EMAIL PROTECTED] wrote: You said If they need

Re: querying by column value rather than key value

2008-05-29 Thread shimon golan
Thanx Bryan for the quick response ! My table is very sparse and contains 100 column families , each containing about 20 items. Also, I need to search the table by each of the columns so the solution you suggested seems somewhat complicated for this purpose. So my ensuing questions are : 1. Do

Re: ipc.Client: Retrying connect to server: localhost/127.0.0.1:50000

2008-05-15 Thread shimon golan
Thanks , I did that but it didn't work ( I got the same message ) my updated /etc/hosts file is 127.0.0.1 localhost mem 192.168.5.236 localhost mem I've also tried this : 192.168.5.236 localhost mem 127.0.0.1 localhost mem which gave the message

org.apache.hadoop.util.DiskChecker$DiskErrorException: Could not find task_200805131750_0005_m_000001_0/file.out.index in any of the configured local directories

2008-05-13 Thread shimon golan
I've followed carefully the instructions on http://www.michael-noll.com/wiki/Running_Hadoop_On_Ubuntu_Linux_%28Single-Node_Cluster%29, but the task fails with the following stack trace : 08/05/13 19:16:26 INFO mapred.JobClient: map 100% reduce 0% 08/05/13 19:18:55 INFO mapred.JobClient: Task Id