Re: Error executing SimplePageRankComputation

2015-07-15 Thread Panagiotis Liakos
Thank you for the reply Sonja, I am following the quick start guide in the Apache Giraph website so I'm working in a single-node, pseudo-distributed cluster. I have no idea why there are 2 map tasks, my configuration is the following: mapred.job.tracker hdnode01:54311 mapred.tasktracker.map.

Re: Error executing SimplePageRankComputation

2015-07-15 Thread Sonja Koenig
Hi there! I'm guessing you're working in a pseudo-distributed mode, since you applied the argument -w 1 Have you taken a look into the tasklog? Sounds like you might have some excpetion and/or connection loss. Also I am wondering why your computation launched 2 map tasks. What is your configu

Error executing SimplePageRankComputation

2015-07-15 Thread Panagiotis Liakos
Hello, I have successfully set up hadoop 1.2.1 and giraph 1.1.0 and tested the SimpleShortestPathsComputation as shown in the quick start guide. However, I am more interested in the SimplePageRankComputation and I fail to execute it. In particular, I issue the following command: $HADOOP_HOME/bin