Refers to write your own graphs functions and then packaged into a jar file, each jobtracker scheduling is write your own jar file, said the jobtracker node is insufficient memory to too much homework is too much to deal with different kinds of tasks, I don't understand is the function of each jar package, once submitted several different data analysis processing, the tasktracker node, said the mobile computing, convenient than mobile data refers to the jobtracker also submit homework is to write their own jar file is copied to each containing a datanode tasktracker node?

CodePudding user response:

Refers to the graphs of writing your own function and then packaged into a jar file, each jobtracker scheduling is write your own jar file, please
, is you of the jar to the HDFS, then each tasktracker executes download
Said the jobtracker node is insufficient memory to too much homework is to deal with too many different kinds of tasks, I don't understand is the function of each jar package, once submitted several different data analysis processing
memory has a variety of situations, see the log, sometimes is jt high concurrency, machine performance, have a plenty of the task of memory high performance not tt
Said the tasktracker node, the mobile computing convenient than mobile data
understand