Re: problem scaling cluster up to 2 slaves

2007-08-03 Thread Samuel LEMOINE
Thanks for these precisions. I've read the 1374 Jira page and it seems to be the same problem as mine, unless mine happends automaticaly and prevents me from running hadoop on 2 or more slaves. Since it is still unsolved, and as I'm not some kind of hardcore coder/debugger, I think that I'll gi

Re: problem scaling cluster up to 2 slaves

2007-08-02 Thread Jeff Hammerbacher
"HADOOP-1374" refers to the JIRA (Hadoop's issue-tracking software of choice) ticket that details a bug that may be related to yours. Check it out here: http://issues.apache.org/jira/browse/HADOOP-1374. Regards, Jeff On 8/2/07, Samuel LEMOINE <[EMAIL PROTECTED]> wrote: > > Thanks for your answer

Re: problem scaling cluster up to 2 slaves

2007-08-02 Thread Konstantin Shvachko
Samuel LEMOINE wrote: Thanks for your answer, you give me hope :) TO answer your interrogations, I use the haddop script "start-all.sh" to launch hadoop, and each plateform is a JAVA 1.5.0 jdk running on ubuntu 7.0.4. Thank you this was important. Your few advices raise as many questions fo

Re: problem scaling cluster up to 2 slaves

2007-08-02 Thread Samuel LEMOINE
Thanks for your answer, you give me hope :) TO answer your interrogations, I use the haddop script "start-all.sh" to launch hadoop, and each plateform is a JAVA 1.5.0 jdk running on ubuntu 7.0.4. Your few advices raise as many questions for me : you mention a discussion named "HADOOP-1374", w

Re: problem scaling cluster up to 2 slaves

2007-08-01 Thread Konstantin Shvachko
It seems like you are hitting the problem discussed in HADOOP-1374. We still don't know what causes it. It would be very good if you share your experience in this issue. Do you use hadoop scripts to run your tests? Which platform are you running them on? In my experience sometimes it helps if

problem scaling cluster up to 2 slaves

2007-08-01 Thread Samuel LEMOINE
Hi everyone ! I'm still trying to understand the way hadoop works, and the possibilities offered in parallelizing java applications with haddop (especially lucene-based ones). For the moment, I've focused my efforts on the examples given (Grep and WordCount). I've managed to make both of them