KEP-583keps/sig-scheduling/583-coscheduling
| Decided | Decision | Deciders | Evidence |
|---|---|---|---|
| 2020-12-17 19:35 UTC | status_transition KEP-583 status set to provisional in PR #2195, approved by johnbelamaric; merged by automation (k8s-ci-robot) on 2020-12-17. |
|
|
| At | Kind | Field | Change | Actor | Evidence |
|---|---|---|---|---|---|
| 2018-07-03 01:52 UTC | label | stage/alpha added | none → stage/alpha | @k8s-ci-robot | source(opens GitHub in a new tab) |
| 2018-07-03 01:52 UTC | label | sig/scheduling added | none → sig/scheduling | @k8s-ci-robot | source |
| Person | Relationship |
|---|---|
| @k82cn GitHub(opens GitHub in a new tab) | —AUTHORED→ |
| @bsalamat GitHub(opens GitHub in a new tab) | —REVIEWS→ |
| @vishh GitHub(opens GitHub in a new tab) | —REVIEWS→ |
| @bsalamat GitHub |
active_status_closed_issueopen
kep.yaml says provisional or implementable while the tracking issue is closed. Usually the feature shipped and status was never set to implemented; when a lifecycle bot closed the issue, the status may be right.
Suggested fix: Review the status
Detected 2026-10-18 · Open in Audit
one_sided_replacementopen
A KEP declares that it replaces another, but the replaced KEP does not list it as superseded-by.
Shortest paths in the graph between this KEP and its SIG or one of its people, up to four hops.
| 2018-07-03 01:52 UTC | label | kind/feature added | none → kind/feature | @k8s-ci-robot | source(opens GitHub in a new tab) |
| 2018-07-18 06:00 UTC | milestone | milestone milestoned | none → v1.12 | @justaugustus | source(opens GitHub in a new tab) |
| 2018-07-18 21:31 UTC | label | tracked/yes added | none → tracked/yes | @justaugustus | source(opens GitHub in a new tab) |
| 2018-09-06 05:58 UTC | milestone | milestone demilestoned | v1.12 → none | @k8s-ci-robot | source(opens GitHub in a new tab) |
| 2018-09-06 05:58 UTC | milestone | milestone milestoned | none → v1.13 | @k8s-ci-robot | source(opens GitHub in a new tab) |
| 2018-09-06 05:58 UTC | label | tracked/yes removed | tracked/yes → none | @justaugustus | source(opens GitHub in a new tab) |
| 2018-10-08 15:57 UTC | label | tracked/yes added | none → tracked/yes | @kacole2 | source(opens GitHub in a new tab) |
| 2018-10-23 21:07 UTC | milestone | milestone demilestoned | v1.13 → none | @k8s-ci-robot | source(opens GitHub in a new tab) |
| —APPROVES→ |
| implementable |
| successor |
Suggested fix: Add superseded-by on the replaced KEP
Detected 2026-10-18 · Open in Audit
one_sided_replacementopen
A KEP declares that it replaces another, but the replaced KEP does not list it as superseded-by.
Suggested fix: Add superseded-by on the replaced KEP
Detected 2026-10-18 · Open in Audit
Blast radius of changing a KEP, grouped by hop (depth 2 or 3): KEPs that replace / are replaced by it or SEE_ALSO it, KEPs sharing a feature gate, and for each KEP reached its owning SIG, current authors and approvers and its open tracking issue. Every node comes with its shortest path from the KEP (paths). Open pull requests are not in the graph (merged PRs only).
30 nodes within 2 hops of this KEP, each with its shortest path back to it.
One step away: KEPs this one replaces, is replaced by, refers to or shares a feature gate with, and its own SIG, authors, approvers and open tracking issue.
Two steps away, including the SIG, authors, approvers and open issue of each KEP at hop 1.
impact_of_change·3 rows·31 evidence records·30 paths·43 ms
| Kep | Depth | Reached | By hop | Open pull requests | Hop | Keps | Sigs | People | Feature gates | Open issues |
|---|---|---|---|---|---|---|---|---|---|---|
{
"label": "KEP",
"key": "keps/sig-scheduling/583-coscheduling",
"title": "Coscheduling",
"url": "https://github.com/kubernetes/enhancements/tree/6ebe0a94771723b3f27cb4a757f0cc22f29e38a2/keps/sig-scheduling/583-coscheduling",
"evidence_id": "6uoxameubmil",
"number": 583,
"owning_sig": "sig-scheduling",
"status": "provisional",
"creation_date": "2018-07-03",
"last_updated": "2019-01-03",
"metadata_invalid": false
} | 2 | 30 | {
"1": {
"keps": 2,
"sigs": 1,
"people": 2
},
"2": {
"keps": 8,
"feature_gates": 6,
"people": 10,
"open_issues": 1
}
} | not in graph (merged pull requests only) | none | none | none | none | none | none |
| none | none | none | none | none | 1 | [
{
"label": "KEP",
"key": "keps/sig-scheduling/4671-gang-scheduling",
"title": "Gang Scheduling",
"url": "https://github.com/kubernetes/enhancements/tree/6ebe0a94771723b3f27cb4a757f0cc22f29e38a2/keps/sig-scheduling/4671-gang-scheduling",
"evidence_id": "2z5mkb44snuh",
"number": 4671,
"owning_sig": "sig-scheduling",
"status": "implementable",
"stage": "stable",
"latest_milestone": "v1.38",
"milestone_alpha": "v1.35",
"milestone_beta": "v1.37",
"milestone_stable": "v1.38",
"creation_date": "2025-09-17",
"metadata_invalid": false
},
{
"label": "KEP",
"key": "keps/sig-scheduling/5832-decouple-podgroup-api",
"title": "Decouple PodGroup API",
"url": "https://github.com/kubernetes/enhancements/tree/6ebe0a94771723b3f27cb4a757f0cc22f29e38a2/keps/sig-scheduling/5832-decouple-podgroup-api",
"evidence_id": "kpobuw3xkxc7",
"number": 5832,
"owning_sig": "sig-scheduling",
"status": "implementable",
"stage": "alpha",
"latest_milestone": "v1.36",
"milestone_alpha": "v1.36",
"milestone_beta": "v1.37",
"milestone_stable": "v1.39",
"creation_date": "2026-01-23",
"metadata_invalid": false
}
] | [
{
"label": "SIG",
"key": "sig-scheduling",
"title": "Scheduling",
"url": "https://github.com/kubernetes/community/tree/440e496d3a172234d81728df1bfe43849b589adf/sig-scheduling",
"evidence_id": "maif65vfeb5k",
"display_name": "Scheduling",
"sig_label": "scheduling",
"in_scope": true
}
] | [
{
"label": "Person",
"key": "k82cn",
"title": "k82cn",
"url": "https://github.com/k82cn",
"evidence_id": "obumrms3yrzd",
"login": "k82cn",
"is_bot": false
},
{
"label": "Person",
"key": "bsalamat",
"title": "bsalamat",
"url": "https://github.com/bsalamat",
"evidence_id": "l2izawf3czvd",
"login": "bsalamat",
"is_bot": false
}
] | none | none |
| none | none | none | none | none | 2 | [
{
"label": "KEP",
"key": "keps/sig-apps/5547-integrate-workload-with-job",
"title": "Integrate Workload APIs with Job Controller",
"url": "https://github.com/kubernetes/enhancements/tree/6ebe0a94771723b3f27cb4a757f0cc22f29e38a2/keps/sig-apps/5547-integrate-workload-with-job",
"evidence_id": "f4i2ta5ppezx",
"number": 5547,
"owning_sig": "sig-apps",
"status": "implementable",
"stage": "beta",
"latest_milestone": "v1.38",
"milestone_alpha": "v1.36",
"milestone_beta": "v1.38",
"creation_date": "2026-01-29",
"metadata_invalid": false
},
{
"label": "KEP",
"key": "keps/sig-apps/6276-integrate-workload-with-deployment",
"title": "Integrate Workload APIs with Deployment Controller",
"url": "https://github.com/kubernetes/enhancements/tree/6ebe0a94771723b3f27cb4a757f0cc22f29e38a2/keps/sig-apps/6276-integrate-workload-with-deployment",
"evidence_id": "m6bhbzoyosfd",
"number": 6276,
"owning_sig": "sig-apps",
"status": "implementable",
"stage": "alpha",
"latest_milestone": "v1.38",
"milestone_alpha": "v1.38",
"creation_date": "2026-08-21",
"metadata_invalid": false
},
{
"label": "KEP",
"key": "keps/sig-scheduling/5710-workload-aware-preemption",
"title": "Workload-aware preemption",
"url": "https://github.com/kubernetes/enhancements/tree/6ebe0a94771723b3f27cb4a757f0cc22f29e38a2/keps/sig-scheduling/5710-workload-aware-preemption",
"evidence_id": "lpkjgc7f2f6k",
"number": 5710,
"owning_sig": "sig-scheduling",
"status": "implementable",
"stage": "stable",
"latest_milestone": "v1.38",
"milestone_alpha": "v1.36",
"milestone_beta": "v1.37",
"milestone_stable": "v1.38",
"creation_date": "2025-11-28",
"metadata_invalid": false
},
{
"label": "KEP",
"key": "keps/sig-scheduling/5729-resourceclaim-support-for-workloads",
"title": "DRA: ResourceClaim Support for Workloads",
"url": "https://github.com/kubernetes/enhancements/tree/6ebe0a94771723b3f27cb4a757f0cc22f29e38a2/keps/sig-scheduling/5729-resourceclaim-support-for-workloads",
"evidence_id": "nf4yovtwtamb",
"number": 5729,
"owning_sig": "sig-scheduling",
"status": "implementable",
"stage": "beta",
"latest_milestone": "v1.37",
"milestone_alpha": "v1.36",
"milestone_beta": "v1.37",
"creation_date": "2025-12-12",
"metadata_invalid": false
},
{
"label": "KEP",
"key": "keps/sig-scheduling/5732-topology-aware-workload-scheduling",
"title": "Topology-aware workload scheduling",
"url": "https://github.com/kubernetes/enhancements/tree/6ebe0a94771723b3f27cb4a757f0cc22f29e38a2/keps/sig-scheduling/5732-topology-aware-workload-scheduling",
"evidence_id": "47k52623hxpl",
"number": 5732,
"owning_sig": "sig-scheduling",
"status": "implementable",
"stage": "beta",
"latest_milestone": "v1.38",
"milestone_alpha": "v1.36",
"milestone_beta": "v1.38",
"milestone_stable": "v1.39",
"creation_date": "2025-12-10",
"metadata_invalid": false
},
{
"label": "KEP",
"key": "keps/sig-scheduling/5836-scheduler-preemption-for-ippr",
"title": "Scheduler Preemption for In-Place Pod Resize",
"url": "https://github.com/kubernetes/enhancements/tree/6ebe0a94771723b3f27cb4a757f0cc22f29e38a2/keps/sig-scheduling/5836-scheduler-preemption-for-ippr",
"evidence_id": "sxlhag5jtktl",
"number": 5836,
"owning_sig": "sig-scheduling",
"status": "implementable",
"stage": "beta",
"latest_milestone": "v1.38",
"milestone_alpha": "v1.37",
"milestone_beta": "v1.38",
"creation_date": "2026-02-23",
"metadata_invalid": false
},
{
"label": "KEP",
"key": "keps/sig-scheduling/6012-composite-podgroup-api",
"title": "CompositePodGroup API",
"url": "https://github.com/kubernetes/enhancements/tree/6ebe0a94771723b3f27cb4a757f0cc22f29e38a2/keps/sig-scheduling/6012-composite-podgroup-api",
"evidence_id": "5shzjfz56m6x",
"number": 6012,
"owning_sig": "sig-scheduling",
"status": "implementable",
"stage": "beta",
"latest_milestone": "v1.38",
"milestone_alpha": "v1.37",
"milestone_beta": "v1.38",
"milestone_stable": "v1.40",
"creation_date": "2026-04-15",
"metadata_invalid": false
},
{
"label": "KEP",
"key": "keps/sig-scheduling/6089-was-controller-apis",
"title": "Workload Aware Scheduling Controller APIs",
"url": "https://github.com/kubernetes/enhancements/tree/6ebe0a94771723b3f27cb4a757f0cc22f29e38a2/keps/sig-scheduling/6089-was-controller-apis",
"evidence_id": "67tcgl4sst7l",
"number": 6089,
"owning_sig": "sig-scheduling",
"status": "implementable",
"stage": "beta",
"latest_milestone": "v1.38",
"milestone_alpha": "v1.37",
"milestone_beta": "v1.38",
"milestone_stable": "v1.39",
"creation_date": "2026-05-18",
"metadata_invalid": true
}
] | none | [
{
"label": "Person",
"key": "helayoty",
"title": "helayoty",
"url": "https://github.com/helayoty",
"evidence_id": "3c7htdrcu2xd",
"login": "helayoty",
"is_bot": false
},
{
"label": "Person",
"key": "andreyvelich",
"title": "andreyvelich",
"url": "https://github.com/andreyvelich",
"evidence_id": "oogpeocikx6q",
"login": "andreyvelich",
"is_bot": false
},
{
"label": "Person",
"key": "macsko",
"title": "macsko",
"url": "https://github.com/macsko",
"evidence_id": "jkjvn4izrhsq",
"login": "macsko",
"is_bot": false
},
{
"label": "Person",
"key": "mm4tt",
"title": "mm4tt",
"url": "https://github.com/mm4tt",
"evidence_id": "c26ttfb35tfl",
"login": "mm4tt",
"is_bot": false
},
{
"label": "Person",
"key": "wojtek-t",
"title": "wojtek-t",
"url": "https://github.com/wojtek-t",
"evidence_id": "wvpmhj7c3dox",
"login": "wojtek-t",
"is_bot": false
},
{
"label": "Person",
"key": "thockin",
"title": "thockin",
"url": "https://github.com/thockin",
"evidence_id": "m5ydmj5ginak",
"login": "thockin",
"is_bot": false
},
{
"label": "Person",
"key": "erictune",
"title": "erictune",
"url": "https://github.com/erictune",
"evidence_id": "fvlxcyqibyvy",
"login": "erictune",
"is_bot": false
},
{
"label": "Person",
"key": "44past4",
"title": "44past4",
"url": "https://github.com/44past4",
"evidence_id": "ljo23aj47s4v",
"login": "44past4",
"is_bot": false
},
{
"label": "Person",
"key": "dom4ha",
"title": "dom4ha",
"url": "https://github.com/dom4ha",
"evidence_id": "wtucmj62kpc5",
"login": "dom4ha",
"is_bot": false
},
{
"label": "Person",
"key": "sanposhiho",
"title": "sanposhiho",
"url": "https://github.com/sanposhiho",
"evidence_id": "75hxuueplgcp",
"login": "sanposhiho",
"is_bot": false
}
] | [
{
"label": "FeatureGate",
"key": "DelayedPreemption",
"title": "DelayedPreemption",
"url": "https://github.com/kubernetes/enhancements/blob/0f10c2e02b1396ece3a46df71e45952c40f5f448/keps/sig-scheduling/4671-gang-scheduling/kep.yaml",
"evidence_id": "3rjwvip5p7xc",
"name": "DelayedPreemption"
},
{
"label": "FeatureGate",
"key": "GangScheduling",
"title": "GangScheduling",
"url": "https://github.com/kubernetes/enhancements/blob/0287472b0a74cf1efa48446fc47a2e020a1f76d6/keps/sig-scheduling/4671-gang-scheduling/kep.yaml",
"evidence_id": "hytf4bouhulc",
"name": "GangScheduling"
},
{
"label": "FeatureGate",
"key": "GenericWorkload",
"title": "GenericWorkload",
"url": "https://github.com/kubernetes/enhancements/blob/6ebe0a94771723b3f27cb4a757f0cc22f29e38a2/keps/sig-scheduling/5832-decouple-podgroup-api/kep.yaml",
"evidence_id": "hmsgkkabnhq3",
"name": "GenericWorkload"
},
{
"label": "FeatureGate",
"key": "GenericWorkloadPodGroup",
"title": "GenericWorkloadPodGroup",
"url": "https://github.com/kubernetes/enhancements/blob/e62fbcb2f7c7b6145a64265f44fff50f3619d221/keps/sig-scheduling/5832-decouple-podgroup-api/kep.yaml",
"evidence_id": "pk2haoqqotjd",
"name": "GenericWorkloadPodGroup"
},
{
"label": "FeatureGate",
"key": "TBD",
"title": "TBD",
"url": "https://github.com/kubernetes/enhancements/blob/bff33eda36adeefd7ae1d05bd6960a7b0ac795c3/keps/sig-scheduling/4671-gang-scheduling/kep.yaml",
"evidence_id": "l5t62onubuqt",
"name": "TBD"
},
{
"label": "FeatureGate",
"key": "Workload",
"title": "Workload",
"url": "https://github.com/kubernetes/enhancements/blob/0287472b0a74cf1efa48446fc47a2e020a1f76d6/keps/sig-scheduling/4671-gang-scheduling/kep.yaml",
"evidence_id": "3utfmwohksza",
"name": "Workload"
}
] | [
{
"label": "Issue",
"key": "kubernetes/enhancements#4671",
"title": "Gang Scheduling Support in Kubernetes",
"url": "https://github.com/kubernetes/enhancements/issues/4671",
"evidence_id": "nqf3kadl6vs7",
"number": 4671,
"state": "open",
"created_at_iso": "2024-05-30T14:45:25Z",
"labels_current": [
"sig/scheduling",
"stage/stable",
"tracked/yes",
"lead-opted-in",
"wg/workload-aware-scheduling"
],
"milestone_current": "v1.38",
"is_tracking_issue": true
}
] |
Request: POST /v1/tools/impact_of_change
{
"kep_ref": "keps/sig-scheduling/583-coscheduling"
}Cypher template (read-only, parameterised; the values above are bound as parameters)
MATCH (k:KEP {key: $key})
RETURN k
LIMIT 1
;
MATCH (k:KEP {key: $key})
MATCH path = (k)-[:REPLACES|SUPERSEDED_BY|SEE_ALSO|GATED_BY*1..2]-(n)
WHERE n <> k AND (n:KEP OR n:FeatureGate)
AND all(x IN nodes(path)[1..-1] WHERE x <> k AND (x:KEP OR (x:FeatureGate AND NOT x.key IN $placeholders)))
WITH n, path ORDER BY length(path), [x IN nodes(path) | x.key]
WITH n, collect(path)[0] AS path
RETURN n AS node, length(path) AS hop, path
ORDER BY hop, n.key
LIMIT 150
;
UNWIND $keys AS kk
MATCH (k:KEP {key: kk})
RETURN k.key AS kep,
[(k)-[r_0:OWNED_BY]->(s_0:SIG) WHERE coalesce(r_0.valid_to, $open) = $open | s_0] AS sigs,
[(p_1:Person)-[r_1:AUTHORED]->(k) WHERE coalesce(r_1.valid_to, $open) = $open AND coalesce(p_1.is_bot, false) = false
| p_1] AS authors,
[(p_2:Person)-[r_2:APPROVES]->(k) WHERE coalesce(r_2.valid_to, $open) = $open AND coalesce(p_2.is_bot, false) = false
| p_2] AS approvers,
[(k)-[r_3:TRACKED_BY]->(i_3:Issue) WHERE coalesce(r_3.valid_to, $open) = $open AND i_3.state = 'open' | i_3] AS open_issues
LIMIT 200