A Community for Hadoop Users
-
Aprile Matteo
- 24, Male
- Salerno
- Italy
- Share
- Share on Twitter
- Share on Facebook
- Blog Posts
- Discussions (3)
- Events
- Groups
- Photos
- Photo Albums
Aprile Matteo's Discussions
Launching a shell command in reduce method with Java
3 Replies
Hi guys,We're some students of University of Fisciano(SA-Italy). We're wrinting a MapReduce program for a chemistry problem and we need to launch a shell command in our reduce method. This is the co…
Started this discussion. Last reply by Jason Venner Feb 21.
Aprile Matteo's Page
Gifts Received
Aprile Matteo has not received any gifts yet
Latest Activity
My inclination is to thing this is a PATH environment variable issue or an issue with the command string you are trying to execute.
When I have to debug this class of problem, I pass a simple shell script via the distributed cache
-file test.sh
whi…
thx a lot for your answer but I must execute an esternal script that call a molecolar program. This command is "./yasara ........"
I alreay tried to use the FsShell class but it compare the same exception. I think that I could be a security error ...
I doubt that the hadoop script is in your path at task execution time.
You can check the value of the PATH environment variable. You may also try giving an explicit path starting from /.
In addition most of the commands you are trying to invoke via…
February 26, 2010 from 10am to 12pm
Hear from the experts on how High Performance Computing can improve your business on a day-to-day basis.
Attend this webinar to understand-
- Whether you really need HPC
- What data or compute intensive problems can HPC solve for you
- How can cont…
Hi guys,We're some students of University of Fisciano(SA-Italy). We're wrinting a MapReduce program for a chemistry problem and we need to launch a shell command in our reduce method. This is the code:
*Process p = Runtime.getRuntime().exec("hadoo…
Hi, i've the same problem. When I lunch my program, i have this error:
Status : FAILED
Shuffle Error: Exceeded MAX_FAILED_UNIQUE_FETCHES; bailing-out.
I readed in your previous post that the problem was some inconsistencies in the hostname and hosts…
Profile Information
- Hadoop Experience Level
- Beginner
Comment Wall
- No comments yet!
Groups
-
NoSql
2 members
-
Karma Sphere Studio Users
1 member
-
HBase Users
7 members
-
Hadoop Cascading
1 member
-
Hadoop Administrators
3 members
© 2010 Created by Jason Venner.
Powered by 
.
