Hi, Claudio, I have set the following when ran the program: export HADOOP_DATANODE_OPTS="-Xmx10g" and export HADOOP_HEAPSIZE=30000
in hadoop-env.sh and restarted hadoop. Best Regards, Suijian 2014-03-06 17:29 GMT-06:00 Claudio Martella <claudio.marte...@gmail.com>: > did you actually increase the heap? > > > On Thu, Mar 6, 2014 at 11:43 PM, Suijian Zhou <suijian.z...@gmail.com>wrote: > >> Hi, >> I tried to process only 2 of the input files, i.e, 2GB + 2GB input, the >> program finished successfully in 6 minutes. But as I have 39 nodes, they >> should be enough to load and process the 8*2GB=16GB size graph? Can >> somebody help to give some hints( Will all the nodes participate in graph >> loading from HDFS or only master node load the graph?)? Thanks! >> >> Best Regards, >> Suijian >> >> >> >> 2014-03-06 16:24 GMT-06:00 Suijian Zhou <suijian.z...@gmail.com>: >> >> Hi, Experts, >>> I'm trying to process a graph by pagerank in giraph, but the program >>> always stucks there. >>> There are 8 input files, each one is with size ~2GB and all copied onto >>> HDFS. I use 39 nodes and each node has 16GB Mem and 8 cores. It keeps >>> printing the same info(as the following) on the screen after 2 hours, looks >>> no progress at all. What are the possible reasons? Testing small example >>> files run without problems. Thanks! >>> >>> 14/03/06 16:17:42 INFO job.JobProgressTracker: Data from 39 workers - >>> Compute superstep 0: 5854829 out of 49200000 vertices computed; 181 out of >>> 1521 partitions computed >>> 14/03/06 16:17:47 INFO job.JobProgressTracker: Data from 39 workers - >>> Compute superstep 0: 5854829 out of 49200000 vertices computed; 181 out of >>> 1521 partitions computed >>> >>> Best Regards, >>> Suijian >>> >>> >> > > > -- > Claudio Martella > >
