I use a server with 16 cores, 64 GB ram, 2.5 TB disk and I want to execute a Giraph program. I have installed hadoop-2.7.2 and I don't know how can configure hadoop to use only a partial amount of server resources because the server used by many users. *Requirements:* Hadoop must use max 12 cores (=> 4 cores for NameNode, DataNode, JobTracker, TaskTracker and max 8 for tasks) and max 28GB ram (i.e., 4*3GB + 8*2GB).
My Yarn-site resources configuration: <property> <name>yarn.nodemanager.resource.memory-mb</name> <value>28672</value><description>Physical memory, in MB, to be made available to running containers</description></property> <property> <name>yarn.nodemanager.resource.cpu-vcores</name> <value>12</value> <description>Number of CPU cores that can be allocated for containers.</description></property></configuration> When I try to execute Giraph program, in http://localhost:8088 Yarn Application state is: ACCEPTED: waiting for AM container to be allocated, launched and register with RM. What configurations must to have in my Yarn-site.xml in order to adapt the above requirements? Thank you in advance.
