Re: Giraph program stucks.

2014-03-07 Thread Suijian Zhou
Hi, Claudio, I have set the following when ran the program: export HADOOP_DATANODE_OPTS=-Xmx10g and export HADOOP_HEAPSIZE=3 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

Re: Giraph program stucks.

2014-03-07 Thread Suijian Zhou
The current setting is: namemapred.child.java.opts/name value-Xmx6144m -XX:+UseParallelGC -mx1024m -XX:MaxHeapFreeRatio=10 -XX:MinHeapFreeRatio=10/value Is 6144MB enough( for each task tracker)? I.e: I have 39 nodes to process the 8*2GB input files. Best Regards, Suijian 2014-03-07

Re: Giraph program stucks.

2014-03-07 Thread Suijian Zhou
7, each node has a datanode and a tasktracker running on it. I attach the full file here: 2014.03.07|10:13:17~/HadoopSetupTest/hadoop-1.2.1/confcat mapred-site.xml ?xml version=1.0? ?xml-stylesheet type=text/xsl href=configuration.xsl? !-- Put site-specific property overrides in this file. --

Re: Giraph program stucks.

2014-03-07 Thread Suijian Zhou
I tried to set mapred.tasktracker.map.tasks.maximum to 1, then giraph stucks even for the testing tiny small input graph. Setting it to 2 works, but processing the big graph still stucks there for 5*2GB input files(with-Xmx16g and mapred.job.tracker.handler.count=8 now ): 14/03/07 16:42:17

Giraph program stucks.

2014-03-06 Thread Suijian Zhou
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

Re: Giraph program stucks.

2014-03-06 Thread Suijian Zhou
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

Re: Giraph program stucks.

2014-03-06 Thread Claudio Martella
did you actually increase the heap? On Thu, Mar 6, 2014 at 11:43 PM, Suijian Zhou suijian.z...@gmail.comwrote: 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