Wei Yan commented on YARN-2139:

For the disk IO, we can use cgroup to limit the IO usage for each local 
container. For HDFS remote read/write, may refer as the network IO. We can also 
limit the network bandwidth for each container (YARN-2140).
bq. Otherwise, you could perhaps include some IO requirements in a container 
request (light, medium, heavy) and include that in placement
Yes, put some fields in the container request is good. This can help avoid put 
two IO-intensive tasks together.

> Add support for disk IO isolation/scheduling for containers
> -----------------------------------------------------------
>                 Key: YARN-2139
>                 URL: https://issues.apache.org/jira/browse/YARN-2139
>             Project: Hadoop YARN
>          Issue Type: New Feature
>            Reporter: Wei Yan
>            Assignee: Wei Yan

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