Fixes a bug where Nomad reports negative or incorrect running children
counts for periodic jobs.
The periodic dispatcher derives a child job without reseting the status.
If the periodic job has a `running` status, the derived job will start
as `running` status and transition to `pending`. Since this is
unexpected transition, the counting in StateStore.setJobSummary gets out of sync and
result in negative/incorrect values.
Note that this only affects periodic jobs after a leader transition.
During the first job registration, the job is added with `pending` or
`""` status. However, after a leader transition, the new leader
repopulates the dispatcher heap with `"running"` status and triggers the
bug.
In addition to this computation being wasteful, it introduces a bug
where the allocation on a stats tracker can update twice in one render,
which isn't allowed in Glimmer (ironically, Glimmmer's lack of
auto-memoization introduced the issue).
- Sorting must be done on copies to preserve orders.
- Indices should be reversed since rendering is also reversed (the back
layer (the tallest) is rendered first to create the stacking effect).
This leverages the existing pre-processing being done in the
allocation-stats-tracker to also create additive percentages relative to
the allocation resources vs. the task resources.
This can then be used in a chart to create a stacked area representation
of consumption.
This binds a function to a target before passing it along to another
component. It's normal to expect to get to use `this` within functions
on components and controllers, but (sans actions) that doesn't happen
automatically.
Currently, PrimaryMetric is already overloaded on multiple dimensions:
metric and resource type.
This refactor will use multiple components as a form of control flow
instead spidering conditionals, which are only getting worse as the
charts for each resource type diverge.
Add a `PerAlloc` field to volume requests that directs the scheduler to test
feasibility for volumes with a source ID that includes the allocation index
suffix (ex. `[0]`), rather than the exact source ID.
Read the `PerAlloc` field when making the volume claim at the client to
determine if the allocation index suffix (ex. `[0]`) should be added to the
volume source ID.
Callers of `CSIVolumeByID` are generally assuming they should receive a single
volume. This potentially results in feasibility checking being performed
against the wrong volume if a volume's ID is a prefix substring of other
volume (for example: "test" and "testing").
Removing the incorrect prefix matching from `CSIVolumeByID` breaks prefix
matching in the command line client. Add the required elements for prefix
matching to the commands and API.
Create a convenience command for generating example CSI volume specifications,
similar to the existing `nomad job init` or `nomad quota init` commands.
* Fixup uses of `sanity`
* Remove unnecessary comments.
These checks are better explained by earlier comments about
the context of the test. Per @tgross, moved the tests together
to better reinforce the overall shared context.
* Update nomad/fsm_test.go
