Hi…
If I well understood principles when applying network topology, blocks are written :
* on the client server if hosting a datanode
* on a second server defined on a different rack
* on a third server defined on the same rack as #2
Is this policy configurable or it is “hard-written” in class ? Of course, I do not want to modify any class by myself…
Basically, I would like to :
1) take into account datacenter (according to what I read, HDFS do not care datacenters even if using network topology)
2) force the write in 3 distinct racks
Thank for the one who has the answer…
regards