this setting won't be used by Giraph (or by any mapreduce application), but by the hadoop infrastructure itself. you should use mapred.child.java.opts instead.
On Fri, Mar 7, 2014 at 4:19 PM, Suijian Zhou <suijian.z...@gmail.com> wrote: > 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 >> >> > > -- Claudio Martella
