Anubhav Dhoot commented on YARN-2664:

Overall this is a very natural way to visualize reservations, great job!!. It 
maps to the mental model of skylines.

high level comments/questions
a) This is a view of reservations and does not indicate actual allocations 
right? But the legend for y axis says Utilization GB. Allocation  would be a 
great addition (knowing how much is left of my reservation etc)
b) This shows everything in terms of memory but not cpu, right? Should we add a 
switch to show both and in future other resource types? Showing them together 
is more correct but harder to visualize.
c) Should we also show total plan capacity as the end of the yaxis or an 
explicit "ceiling" line? 

Minor usability issues
a) How is the time window for the slider and time window that is selected in 
the slider chosen? Some times it would keep the slider to some point before the 
current time at other times it would show future time as part of the view. Also 
if there was no reservations it would not go to current time until a new 
reservation shows up?
b) related to previous, why does refresh button on page allow me to move the 
chosen time window forward but not the refresh button. Maybe rename the refresh 
to refresh queues? Also provide a refresh time button if c) below cannot be 
c) is there a query parameter or some other way to get back to a specific 
queue? That would help not having to do drop down every time i refresh the page

> Improve RM webapp to expose info about reservations.
> ----------------------------------------------------
>                 Key: YARN-2664
>                 URL: https://issues.apache.org/jira/browse/YARN-2664
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Carlo Curino
>            Assignee: Matteo Mazzucchelli
>         Attachments: PlannerPage_screenshot.pdf, YARN-2664.1.patch, 
> YARN-2664.2.patch, YARN-2664.3.patch, YARN-2664.4.patch, YARN-2664.5.patch, 
> YARN-2664.6.patch, YARN-2664.7.patch, YARN-2664.patch, legal.patch, 
> screenshot_reservation_UI.pdf
> YARN-1051 provides a new functionality in the RM to ask for reservation on 
> resources. Exposing this through the webapp GUI is important.

This message was sent by Atlassian JIRA

Reply via email to