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mirror of https://github.com/kubernetes-sigs/descheduler.git synced 2026-01-26 21:31:18 +01:00
Commit Graph

624 Commits

Author SHA1 Message Date
Kubernetes Prow Robot
335c698b38 Merge pull request #1538 from googs1025/feature/grace_period_seconds
feature(descheduler): add grace_period_seconds for DeschedulerPolicy
2025-01-07 10:42:30 +01:00
googs1025
3440abfa41 chore: add ignorePvcPods flag in default evictor filter unit test 2025-01-07 15:27:28 +08:00
googs1025
e6d0caa1bc feature(descheduler): add grace_period_seconds for DeschedulerPolicy 2025-01-07 10:16:47 +08:00
googs1025
03246d6843 chore: update README.md for DeschedulerPolicy 2025-01-06 20:08:35 +08:00
googs1025
bbffb830b9 feature(eviction): add event when EvictPod failed 2024-12-07 19:38:20 +08:00
Jan Chaloupka
6567f01e86 [nodeutilization]: actual usage client through kubernetes metrics 2024-11-20 14:30:46 +01:00
Kubernetes Prow Robot
a4c09bf560 Merge pull request #1466 from ingvagabund/eviction-in-background-code
Introduce RequestEviction feature for evicting pods in background (KEP-1397)
2024-11-19 14:54:54 +00:00
Jan Chaloupka
3a1a3ff9d8 Introduce RequestEviction feature for evicting pods in background
When the feature is enabled each pod with descheduler.alpha.kubernetes.io/request-evict-only
annotation will have the eviction API error examined for a specific
error code/reason and message. If matched eviction of such a pod will be interpreted
as initiation of an eviction in background.
2024-11-19 15:28:37 +01:00
Jan Chaloupka
d1c64c48cd nodeutilization: separate code responsible for requested resource extraction into a dedicated usage client
Turning a usage client into an interface allows to implement other kinds
of usage clients like actual usage or prometheus based resource
collection.
2024-11-15 11:23:49 +01:00
Jan Chaloupka
9950b8a55d nodeutilization: usage2KeysAndValues for constructing a key:value list for InfoS printing resource usage 2024-11-14 14:15:26 +01:00
Jan Chaloupka
f115e780d8 Define EvictionsInBackground feature gate 2024-11-14 13:29:59 +01:00
Kubernetes Prow Robot
af8a7445a4 Merge pull request #1544 from ingvagabund/node-utilization-refactoring-II
nodeutilization: evictPodsFromSourceNodes: iterate through existing resources
2024-11-13 22:00:47 +00:00
Kubernetes Prow Robot
5ba11e09c7 Merge pull request #1543 from ingvagabund/node-utilization-refactoring-I
nodeutilization: NodeUtilization: make pod utilization extraction configurable
2024-11-13 21:34:47 +00:00
Jan Chaloupka
67d3d52de8 sortNodesByUsage: drop extended resources as they are already counted in 2024-11-13 21:31:02 +01:00
Jan Chaloupka
e9f43856a9 nodeutilization: iterate through existing resources 2024-11-13 15:31:48 +01:00
Jan Chaloupka
e655a7eb27 nodeutilization: NodeUtilization: make pod utilization extraction configurable 2024-11-13 14:21:32 +01:00
Jan Chaloupka
7eeb07d96a Update nodes sorting function to respect available resources 2024-11-11 16:26:56 +01:00
Simon Scharf
ef0c2c1c47 add ignorePodsWithoutPDB option (#1529)
* add ignoreNonPDBPods option

* take2

* add test

* poddisruptionbudgets are now used by defaultevictor plugin

* add poddisruptionbudgets to rbac

* review comments

* don't use GetPodPodDisruptionBudgets

* review comment, don't hide error
2024-10-15 21:21:04 +01:00
Jan Chaloupka
89bd188a35 hnu: move static code from Balance under plugin constructor 2024-10-11 16:49:23 +02:00
Jan Chaloupka
e3c41d6ea6 lnu: move static code from Balance under plugin constructor 2024-10-11 16:37:53 +02:00
Jan Chaloupka
e0ff750fa7 Move default LNU threshold setting under setDefaultForLNUThresholds 2024-10-11 16:31:37 +02:00
Simon Scharf
22d9230a67 Make sure dry runs sees all the resources a normal run would do (#1526)
* generic resource handling, so that dry run has all the expected resource types and objects

* simpler code and better names

* fix imports
2024-10-04 12:20:28 +01:00
Kubernetes Prow Robot
0f1890e5cd Merge pull request #1480 from ingvagabund/omitempty-for-plugin-args
Plugin args: tag arguments with omitempty to reduce the marshalled json size
2024-09-02 12:00:56 +01:00
Jan Chaloupka
29c0a90998 TestPodEvictorReset: replace duplicates strategy with node taints to simplify the testing 2024-08-14 11:00:20 +02:00
Kubernetes Prow Robot
640b675e86 Merge pull request #1484 from ingvagabund/test-descheduling-limits
[unit test]: test descheduling limits
2024-08-14 01:53:04 -07:00
Kubernetes Prow Robot
c0c26e762b Merge pull request #1483 from ingvagabund/dedup-framework-init
tests: de-duplicate framework handle initialization
2024-08-14 01:20:26 -07:00
Jan Chaloupka
91e5e06b5f [unit test]: test descheduling limits 2024-08-14 10:15:58 +02:00
Jan Chaloupka
cbade38d23 [tests] de-duplicate framework handle initialization 2024-08-12 17:05:30 +02:00
Jan Chaloupka
1e0b1a9840 Remove descheduler/v1alpha1 type 2024-08-09 09:49:59 +02:00
Jan Chaloupka
cb0c1b660d Plugin args: tag arguments with omitempty to reduce the marshalled json size 2024-08-06 15:20:18 +02:00
Amir Alavi
a3146a1705 fix: minor version parsing in version compatibility check
Signed-off-by: Amir Alavi <amiralavi7@gmail.com>
2024-07-28 11:44:12 -04:00
Victor Gonzalez
55a0812ae6 skip eviction when pod creation time is below minPodAge threshold setting (#1475)
* skip eviction when pod creation time is below minPodAge threshold setting

In the default initialization phase of the descheduler, add a new
constraint to not evict pods that creation time is below minPodAge
threshold.

Added value:

- Avoid crazy pod movement when the autoscaler scales up and down.

- Avoid evicting pods when they are warming up.

- Decreases the overall cost of eviction as no pod will be evicted
  before doing significant amount of work.

- Guard against scheduling. Descheduling loops in situations where
  the descheduler has a different node fit logic from scheduler,
  like not considering topology spread constraints.

* Use *time.Duration instead of uint for MinPodAge type

* Remove '(in minutes)' from default evictor configuration table

* make fmt

* Add explicit name for Duration field

* Use Duration.String()
2024-07-26 05:59:21 -07:00
Adam Malcontenti-Wilson
f23967a88e feat: add init and ephemeral container checks to PodLifeTime 2024-07-17 14:36:35 +10:00
Emin Aktas
f8e128d862 refactor: replace k8s.io/utils/pointer with k8s.io/utils/ptr
Signed-off-by: Emin Aktas <eminaktas34@gmail.com>
2024-07-11 11:36:34 +03:00
Kubernetes Prow Robot
b614c8bc7c Merge pull request #1458 from ingvagabund/pod-evictor-thread-safe
pod evictor: make it thread safe
2024-07-10 04:48:26 -07:00
Kubernetes Prow Robot
9b41edd382 Merge pull request #1460 from ingvagabund/context
descheduler_test.go: initDescheduler: pass a new ctx with cancel inst…
2024-07-09 11:24:11 -07:00
Jan Chaloupka
bc60a058ef pod evictor: make it thread safe
Currently, all the plugins are run in a sequence.
No plugin executes evictions in parallel within.
Yet, there's no guarantee a future plugin (e.g. a custom one)
will not attemp to evict pods in parallel.
2024-07-09 12:39:08 +02:00
Kubernetes Prow Robot
546a39e88c Merge pull request #1451 from zhifei92/support-total-pods-limit
The descheduler supports limiting the total number of pods evicted per rescheduling cycle
2024-07-09 03:35:17 -07:00
zhifei92
578086ca8e refactor: optimize error descriptions 2024-07-09 17:14:34 +08:00
Jan Chaloupka
ea2eeccff4 descheduler_test.go: initDescheduler: pass a new ctx with cancel instead of returning a cancel 2024-07-09 09:19:59 +02:00
zhifei92
e60f525ec6 feat: support MaxNoOfPodsToEvictTotal 2024-07-09 14:00:27 +08:00
Jan Chaloupka
3362fec7b0 Define initDescheduler for further use
Can be used by other tests executing individual descheduling cycle
explicitly.
2024-07-08 17:28:51 +02:00
Jan Chaloupka
f240648df2 Set OwnerReferences through GetReplicaSetOwnerRefList 2024-07-08 17:10:07 +02:00
Jan Chaloupka
a818c01832 Use v1alpha2 descheduling policy 2024-07-08 17:04:53 +02:00
Jan Chaloupka
44b59f9b1d initPluginRegistry as a single way to register all plugins in testing 2024-07-08 16:55:27 +02:00
Kubernetes Prow Robot
9d16c28f43 Merge pull request #1456 from ingvagabund/limit-exceeded-to-error
PodEvictor: turn an exceeded limit into an error
2024-07-08 06:25:06 -07:00
googs1025
db0df6c6ca fix: add info for error return 2024-07-07 21:16:52 +08:00
Jan Chaloupka
18d0e4a540 PodEvictor: turn an exceeded limit into an error
When checking for node limit getting exceeded the pod eviction
never fails. Thus, ignoring the metric reporting when a pod fails
to be evicted due to node limit constrains.

The error also allows plugin to react on other limits getting
exceeded. E.g. the limit on the number of pods evicted per namespace.
2024-07-06 20:14:43 +02:00
Kubernetes Prow Robot
7657345079 Merge pull request #1452 from a7i/defaultevictor-reinit
fix: indexer cache error when default evictor is re-initialized
2024-07-06 04:30:53 -07:00
Amir Alavi
e26f6429a2 feat: pod evictor options 2024-07-05 21:40:55 -04:00