Someone can correct me if I'm wrong, but I'm pretty sure it goes:
1. The JT assigns map tasks to TTs based on locality, etc.
2. They finish and report status back to the JT.
3. The JT assigns a reduce task to a TT and informs it as to the TT
where the map output is. The TTs fetch the map output v
On Feb 9, 2010, at 9:47 PM, psdc1978 wrote:
Hi,
I've some question about the MapRed ports and how a reduce knows
where the map output is to fetch.
I know that MapRed uses jetty has a webserver.
- The JobTracker send tasks to the TaskTracker execute them through
port 50060?
TT
Pedro:
I can answer at least some of these questions for you. See below.
On 2/10/10 12:47 AM, psdc1978 wrote:
> Hi,
>
> I've some question about the MapRed ports and how a reduce knows where
> the map output is to fetch.
>
> I know that MapRed uses jetty has a webserver
Hi,
I've some question about the MapRed ports and how a reduce knows where the
map output is to fetch.
I know that MapRed uses jetty has a webserver.
- The JobTracker send tasks to the TaskTracker execute them through port
50060?
- Which port TaskTracker uses to send status about the task
