Saved Bookmarks
| 1. |
Why Jobclient, Job Tracker Submits Job Resources To File System? |
|
Answer» Data locality. Move competition is cheaper than MOVING Data. So logic/ competition in Jar FILE and splits. So Where the data available, in File System DATANODES. So EVERY resources copy where the data available. Data locality. Move competition is cheaper than moving Data. So logic/ competition in Jar file and splits. So Where the data available, in File System Datanodes. So every resources copy where the data available. |
|