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https://issues.apache.org/jira/browse/MESOS-204?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13289254#comment-13289254
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Charles Reiss commented on MESOS-204:
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Getting at least some local network isolation support is similar to getting
disk IO isolation, and sometimes it might be all that's needed. It is not
obvious what the right way to do network isolation in general (there are some
proposals in the literature), and it's not obvious how a user should specify
their needs even in the purely local case.
The priority inversion problem I'm talking about is that, in most setups, any
program can cause HDFS -- or most distributed storage systems -- to highly load
the disks, even on machines on which they are not running. Sometimes the
program will be more important than what the DFS is competing with and this
will not be a problem, but other times it won't. Since both cases happen,
there's no "right" priority setting for the DFS, and there's not an obvious way
that the kernel/Mesos/etc. can find out who's using the DFS at runtime.
> enable Frameworks level disk IO bandwidth support
> -------------------------------------------------
>
> Key: MESOS-204
> URL: https://issues.apache.org/jira/browse/MESOS-204
> Project: Mesos
> Issue Type: Brainstorming
> Reporter: Qinghe Jin
>
> I am considering to add Frameworks level disk IO bandwidth support to
> mesos，which behaves like ionice on the single node，but this time it‘s in
> multi-nodes。I believe this kind of disk QoS support will be more user
> friendly。My initial idea is to allow user to use an ioprio_set like api to
> set the io priority when they commit their job. At the same time, here may
> need some tools to display the disk IO usage per node/container on the webui.
> I have read the mesos paper carefully and I found that in the comment，it
> mentioned that in the future it will support disk and network bandwidth
> control。But，in my opinion，disk IO bandwidth is more feasible for it has more
> locality，and network bandwidth control may be more difficult for the
> complexity of the network environment。But I don't know why is there nobody
> going to add this feature。Is it useless？Or not feasible？Or just not
> interested？
> For this feature may need a lot of work，I‘d like to listen to your opinions
> before I start to work on it。Anybody who have any questions ,suggestions or
> ideas, please tell me and I appreciate it very much，Thanks！
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