You could also try setting the mapreduce.job.reduce.slowstart.completedmaps
property to 1 so that the reducers don't start until all the maps are
complete.
-Ray
On Thu, Apr 14, 2016 at 5:39 PM, Wangda Tan wrote:
> It seems you hit MAPREDUCE-6302.
>
> Patch it yourself or waiting for release of
Your file will be split up across numerous data nodes assuming the
file you're storing is larger than the configured block size.
Therefore you'll have file / blocksize across X data nodes. This is
all handled automatically so you don't really have the ability to say
"I want this entire file on thi
I am trying to use WebHDFS to append a large amount of data to a file. From the
documentation I see that I send the op=APPEND to the NameNode first and then it
sends me the location of the DataNode. Then I can start sending data to the
DataNode using the op=APPEND. My question is, can I continue
This is what the capacity scheduler is for.
See my article on working around a particular bug in the current version of
the capacity scheduler
https://medium.com/handy-tech/practical-capacity-scheduling-with-yarn-28548ae4fb88
Note the part on user limits.
On Friday, April 15, 2016, Todd > wrote:
Hi,
I am kind of new to Yarn scheduler , I have a requirement that, we have vip
users and normal users, we want vip users to have available resources whenever
they submit applications so that vip users don't have to wait normal users to
release their resources
Do Capacity Scheduler and Fair Sc
