send an RPC request to the master, wait for the response. usually returns true. returns false if something goes wrong.

Add your RPC definitions here. Cook up a unique-ish UNIX-domain socket name in /var/tmp, for the master. Can't use the current directory since Athena

use ihash(key) % NReduce to choose the reduce task number for each KeyValue emitted by Map.

start a thread that listens for RPCs from worker.go

example function to show how to make an RPC call to the master. the RPC argument and reply types are defined in rpc.go.

main/mrmaster.go calls Done() periodically to find out if the entire job has finished.

an example RPC handler. the RPC argument and reply types are defined in rpc.go.

for sorting by key.

create a Master. main/mrmaster.go calls this function. nReduce is the number of reduce tasks to use.

Your code here -- RPC handlers for the worker to call.

main/mrworker.go calls this function.