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https://issues.apache.org/jira/browse/MESOS-4586?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15130815#comment-15130815
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Craig W edited comment on MESOS-4586 at 2/3/16 7:06 PM:
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[[email protected]] Ah ok, if `Idle` means the same as `resources that could
be offered`, that's what I was looking for. I ran into a situation recently
where `Idle` showed I had hundreds of CPUs and thousands of GB's of memory, but
when I tried to start 100 tasks that each needed 1 cpu and 8gb of memory,
Marathon was stuck `waiting` as it wasn't getting resources offers it could use.
I shutdown other tasks to free up more cpu/memory and then was able to start
the 100 tasks I mentioned. This is what led me to believe the `Idle` values
weren't the actual "free" (as in able to be offered) resources.
was (Author: codecraig):
[[email protected]] Ah ok, if `Idle` means is the same as `resources that
could be offered`, that's what I was looking for. I ran into a situation
recently where `Idle` showed I had hundreds of CPUs and thousands of GB's of
memory, but when I tried to start 100 tasks that each needed 1 cpu and 8gb of
memory, Marathon was stucking `waiting` as it wasn't getting resources offers
it could use.
I shutdown other tasks to free up more cpu/memory and then was able to start
the 100 tasks I mentioned. This is what led me to believe the `Idle` values
weren't the actual "free" (as in able to be offered) resources.
> Resources clarification in Mesos UI
> -----------------------------------
>
> Key: MESOS-4586
> URL: https://issues.apache.org/jira/browse/MESOS-4586
> Project: Mesos
> Issue Type: Improvement
> Affects Versions: 0.26.0, 0.27.0
> Reporter: Craig W
>
> On the Mesos UI under the "resources" section when it lists CPUs and Mem,
> it seems to be calculated by sum up every executor cpu and memory statistics,
> which would be less than <= "allocated" resources.
> On the page that displays information for a slave it shows the CPUs and Mem
> show used and allocated.
> When I look at the Mesos UI front page, I was looking at "Idle" resources as
> the amount of resources I have available for offers. However, that's not the
> case. It would be nice to have it show the amount of "free" or "available"
> resources as well as "idle", so I can better determine how many resources I
> actually have available for scheduling additional tasks.
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