Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Threaded View
Hadoop, mail # user - Suggestion for max.mapred.map.tasks


Copy link to this message
-
Suggestion for max.mapred.map.tasks
Saptarshi Guha 2009-12-10, 21:42
Hello,
I have access to a small group of heterogenous servers:
A has four cores, 16gb
B : four such machines , eight Cores ,16gb
C: two, each with 16 Cores  and 128gb

Each of these will be tasktrackers and datanodes.
What should be the appropiate values for mapred.max.map/reduce.tasks
For A and B I have 6 and 4 respectively( yes a bit much for A), what  
is recommended for C?

Thanks and regards
Saptarshi