KEP-2599keps/sig-apps/2599-minreadyseconds-for-statefulsets

minReadySeconds for StatefulSets

implementablestablesig-appslatest v1.251 open finding

KEP on GitHub kep.yaml Ask about this KEP

The main goal of this enhancement is to introduce minReadySeconds as an optional field to StatefulSets.

Facts

Authors: @ravisantoshgudimetla
Approvers: @soltysh
Reviewers: @soltysh
PRR approvers: @wojtek-tstable@ehashmanalpha@ehashmanbeta
Tracking issue: #2599(opens GitHub in a new tab) closedcompletedclosed 2022-09-01 14:51 UTCmilestone v1.25sig/appsstage/stablelifecycle/rotten
Milestones: alpha v1.22beta v1.23stable v1.25
Participating SIGs: none
Feature gates: StatefulSetMinReadySeconds
Created / last updated: 2021-04-07 / 2022-06-08

Who decided each state, with the evidence.
Decided	Decision	Deciders	Evidence
2021-04-06 17:23 UTC	prr_approval ehashman gave the production readiness approval for KEP-2599 at alpha on 2021-04-06.	@ehashman prr_approver	Document 2599.yaml(opens GitHub in a new tab)
2021-04-29 17:42 UTC	stage_graduation KEP-2599 set milestone.alpha to v1.22 in PR #2607, approved by ehashman, soltysh; merged by automation (k8s-ci-robot) on 2021-04-29.	@ehashman approver @ehashman approve_command @soltysh approver @soltysh approve_command @soltysh lgtm @ravisantoshgudimetla author @k8s-ci-robot merger	Commit kubernetes/enhancements@0acdf5208a30d649c214aa330ad198a737d44f35(opens GitHub in a new tab) StatusChange milestone.alpha ∅ → v1.22 (2021-04-06)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#2607 Introduce minReadySeconds in StatefulSets(opens GitHub in a new tab) Review kubernetes/enhancements/pulls/reviews/648474875(opens GitHub in a new tab) Review kubernetes/enhancements/pulls/reviews/648402113(opens GitHub in a new tab)
2021-04-29 17:42 UTC	stage_graduation KEP-2599 set milestone.beta to v1.23 in PR #2607, approved by ehashman, soltysh; merged by automation (k8s-ci-robot) on 2021-04-29.	@ehashman approver @ehashman approve_command @soltysh approver @soltysh approve_command @soltysh lgtm @ravisantoshgudimetla author @k8s-ci-robot merger	Commit kubernetes/enhancements@0acdf5208a30d649c214aa330ad198a737d44f35(opens GitHub in a new tab) StatusChange milestone.beta ∅ → v1.23 (2021-04-06)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#2607 Introduce minReadySeconds in StatefulSets
2021-04-29 17:42 UTC	stage_graduation KEP-2599 set milestone.stable to v1.25 in PR #2607, approved by ehashman, soltysh; merged by automation (k8s-ci-robot) on 2021-04-29.	@ehashman approver @ehashman approve_command @soltysh approver @soltysh approve_command @soltysh lgtm @ravisantoshgudimetla author @k8s-ci-robot merger	Commit kubernetes/enhancements@0acdf5208a30d649c214aa330ad198a737d44f35(opens GitHub in a new tab) StatusChange milestone.stable ∅ → v1.25 (2021-04-06)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#2607 Introduce minReadySeconds in StatefulSets
2021-04-29 17:42 UTC	stage_graduation KEP-2599 graduated to alpha in PR #2607, approved by ehashman, soltysh; merged by automation (k8s-ci-robot) on 2021-04-29.	@ehashman approver @ehashman approve_command @soltysh approver @soltysh approve_command @soltysh lgtm @ravisantoshgudimetla author @k8s-ci-robot merger	Commit kubernetes/enhancements@0acdf5208a30d649c214aa330ad198a737d44f35(opens GitHub in a new tab) StatusChange stage ∅ → alpha (2021-04-06)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#2607 Introduce minReadySeconds in StatefulSets
2021-04-29 17:42 UTC	status_transition KEP-2599 status set to implementable in PR #2607, approved by ehashman, soltysh; merged by automation (k8s-ci-robot) on 2021-04-29.	@ehashman approver @ehashman approve_command @soltysh approver @soltysh approve_command @soltysh lgtm @ravisantoshgudimetla author @k8s-ci-robot merger	Commit kubernetes/enhancements@0acdf5208a30d649c214aa330ad198a737d44f35(opens GitHub in a new tab) StatusChange status ∅ → implementable (2021-04-06)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#2607 Introduce minReadySeconds in StatefulSets
2021-07-14 20:10 UTC	prr_approval ehashman gave the production readiness approval for KEP-2599 at beta on 2021-07-14.	@ehashman prr_approver	Document 2599.yaml(opens GitHub in a new tab)
2021-09-09 16:24 UTC	milestone_retarget KEP-2599 latest-milestone moved from v1.22 to v1.23 in PR #2824, approved by ehashman, soltysh; merged by automation (k8s-ci-robot) on 2021-09-09.	@ehashman approver @ehashman approve_command @soltysh approver @soltysh approve_command @soltysh lgtm @ravisantoshgudimetla author @k8s-ci-robot merger	Commit kubernetes/enhancements@70800c1b2bddef655d0019d1f2aee93cc0966bac(opens GitHub in a new tab) StatusChange latest_milestone v1.22 → v1.23 (2021-07-14)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#2824 Promote STS minReadySeconds to beta
2021-09-09 16:24 UTC	stage_graduation KEP-2599 graduated to beta from alpha in PR #2824, approved by ehashman, soltysh; merged by automation (k8s-ci-robot) on 2021-09-09.	@ehashman approver @ehashman approve_command @soltysh approver @soltysh approve_command @soltysh lgtm @ravisantoshgudimetla author @k8s-ci-robot merger	Commit kubernetes/enhancements@70800c1b2bddef655d0019d1f2aee93cc0966bac(opens GitHub in a new tab) StatusChange stage alpha → beta (2021-07-14)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#2824 Promote STS minReadySeconds to beta
2022-06-07 22:13 UTC	prr_approval wojtek-t gave the production readiness approval for KEP-2599 at stable on 2022-06-07.	@wojtek-t prr_approver	Document 2599.yaml(opens GitHub in a new tab)
2022-06-13 13:50 UTC	milestone_retarget KEP-2599 latest-milestone moved from v1.23 to v1.25 in PR #3354, approved by soltysh; merged by automation (k8s-ci-robot) on 2022-06-13.	@wojtek-t lgtm @soltysh approver @soltysh approve_command @soltysh lgtm @ravisantoshgudimetla author @k8s-ci-robot merger	Commit kubernetes/enhancements@5bcb2a9528d708a202c4d860d1a63fb80237a7e0(opens GitHub in a new tab) StatusChange latest_milestone v1.23 → v1.25 (2022-06-07)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#3354 KEP-2599: Promote STS minReadySeconds to GA
2022-06-13 13:50 UTC	stage_graduation KEP-2599 graduated to stable from beta in PR #3354, approved by soltysh; merged by automation (k8s-ci-robot) on 2022-06-13.	@wojtek-t lgtm @soltysh approver @soltysh approve_command @soltysh lgtm @ravisantoshgudimetla author @k8s-ci-robot merger	Commit kubernetes/enhancements@5bcb2a9528d708a202c4d860d1a63fb80237a7e0(opens GitHub in a new tab) StatusChange stage beta → stable (2022-06-07)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#3354 KEP-2599: Promote STS minReadySeconds to GA(opens GitHub in a new tab)

Metadata, label and milestone changes, oldest first.Showing 1–10 of 42Rows

Status history
At	Kind	Field	Change	Actor	Evidence
2021-04-05 16:49 UTC	label	needs-sig added	none → needs-sig	@k8s-ci-robot	source(opens GitHub in a new tab)
2021-04-05 20:11 UTC	label	sig/apps added	none → sig/apps	@k8s-ci-robot	source

Relationships as stored, Person → KEP, from kep.yaml(opens GitHub in a new tab)
Person	Relationship
@ravisantoshgudimetla GitHub(opens GitHub in a new tab)	—AUTHORED→
@soltysh GitHub(opens GitHub in a new tab)	—REVIEWS→
@soltysh GitHub(opens GitHub in a new tab)	—APPROVES→
@wojtek-t

How they connect

Shortest paths in the graph between this KEP and its SIG or one of its people, up to four hops.

Impact of change

Rows returned by the tool
Kep	Depth	Reached	By hop	Open pull requests	Hop	Feature gates	Sigs	People
{ "label": "KEP", "key": "keps/sig-apps/2599-minreadyseconds-for-statefulsets", "title": "minReadySeconds for StatefulSets", "url": "https://github.com/kubernetes/enhancements/tree/5b503a75369bdfdd494a2c2c72107a41bf6dd1a8/keps/sig-apps/2599-minreadyseconds-for-statefulsets", "evidence_id": "aj66hwjml45o", "number": 2599, "owning_sig": "sig-apps", "status": "implementable", "stage": "stable", "latest_milestone": "v1.25", "milestone_alpha": "v1.22", "milestone_beta": "v1.23", "milestone_stable": "v1.25", "creation_date": "2021-04-07", "last_updated": "2022-06-08", "metadata_invalid": false }	2	4	{ "1": { "feature_gates": 1, "sigs": 1, "people": 2 } }	not in graph (merged pull requests only)	none	none	none	none
none	none	none	none	none	1	[ { "label": "FeatureGate", "key": "StatefulSetMinReadySeconds", "title": "StatefulSetMinReadySeconds", "url": "https://github.com/kubernetes/enhancements/blob/5b503a75369bdfdd494a2c2c72107a41bf6dd1a8/keps/sig-apps/2599-minreadyseconds-for-statefulsets/kep.yaml", "evidence_id": "sd73srq4l2sx", "name": "StatefulSetMinReadySeconds" } ]	[ { "label": "SIG", "key": "sig-apps", "title": "Apps", "url": "https://github.com/kubernetes/community/tree/440e496d3a172234d81728df1bfe43849b589adf/sig-apps", "evidence_id": "3xevdpgexdfq", "display_name": "Apps", "sig_label": "apps", "in_scope": true } ]	[ { "label": "Person", "key": "ravisantoshgudimetla", "title": "ravisantoshgudimetla", "url": "https://github.com/ravisantoshgudimetla", "evidence_id": "rfukz3izsbss", "login": "ravisantoshgudimetla", "is_bot": false }, { "label": "Person", "key": "soltysh", "title": "soltysh", "url": "https://github.com/soltysh", "evidence_id": "wmji7yq7e2r3", "login": "soltysh", "is_bot": false } ]

Rows returned by the tool
Kep	Depth	Reached	By hop	Open pull requests	Hop	Feature gates	Sigs	People
{ "label": "KEP", "key": "keps/sig-apps/2599-minreadyseconds-for-statefulsets", "title": "minReadySeconds for StatefulSets", "url": "https://github.com/kubernetes/enhancements/tree/5b503a75369bdfdd494a2c2c72107a41bf6dd1a8/keps/sig-apps/2599-minreadyseconds-for-statefulsets", "evidence_id": "aj66hwjml45o", "number": 2599, "owning_sig": "sig-apps", "status": "implementable", "stage": "stable", "latest_milestone": "v1.25", "milestone_alpha": "v1.22", "milestone_beta": "v1.23", "milestone_stable": "v1.25", "creation_date": "2021-04-07", "last_updated": "2022-06-08", "metadata_invalid": false }	2	4	{ "1": { "feature_gates": 1, "sigs": 1, "people": 2 } }	not in graph (merged pull requests only)	none	none	none	none
none	none	none	none	none	1	[ { "label": "FeatureGate", "key": "StatefulSetMinReadySeconds", "title": "StatefulSetMinReadySeconds", "url": "https://github.com/kubernetes/enhancements/blob/5b503a75369bdfdd494a2c2c72107a41bf6dd1a8/keps/sig-apps/2599-minreadyseconds-for-statefulsets/kep.yaml", "evidence_id": "sd73srq4l2sx", "name": "StatefulSetMinReadySeconds" } ]	[ { "label": "SIG", "key": "sig-apps", "title": "Apps", "url": "https://github.com/kubernetes/community/tree/440e496d3a172234d81728df1bfe43849b589adf/sig-apps", "evidence_id": "3xevdpgexdfq", "display_name": "Apps", "sig_label": "apps", "in_scope": true } ]	[ { "label": "Person", "key": "ravisantoshgudimetla", "title": "ravisantoshgudimetla", "url": "https://github.com/ravisantoshgudimetla", "evidence_id": "rfukz3izsbss", "login": "ravisantoshgudimetla", "is_bot": false }, { "label": "Person", "key": "soltysh", "title": "soltysh", "url": "https://github.com/soltysh", "evidence_id": "wmji7yq7e2r3", "login": "soltysh", "is_bot": false } ]

Kep

Depth

Reached

By hop

Open pull requests

Hop

Feature gates

Sigs

People

{
  "label": "KEP",
  "key": "keps/sig-apps/2599-minreadyseconds-for-statefulsets",
  "title": "minReadySeconds for StatefulSets",
  "url": "https://github.com/kubernetes/enhancements/tree/5b503a75369bdfdd494a2c2c72107a41bf6dd1a8/keps/sig-apps/2599-minreadyseconds-for-statefulsets",
  "evidence_id": "aj66hwjml45o",
  "number": 2599,
  "owning_sig": "sig-apps",
  "status": "implementable",
  "stage": "stable",
  "latest_milestone": "v1.25",
  "milestone_alpha": "v1.22",
  "milestone_beta": "v1.23",
  "milestone_stable": "v1.25",
  "creation_date": "2021-04-07",
  "last_updated": "2022-06-08",
  "metadata_invalid": false
}

{
  "1": {
    "feature_gates": 1,
    "sigs": 1,
    "people": 2
  }
}

not in graph (merged pull requests only)

[
  {
    "label": "FeatureGate",
    "key": "StatefulSetMinReadySeconds",
    "title": "StatefulSetMinReadySeconds",
    "url": "https://github.com/kubernetes/enhancements/blob/5b503a75369bdfdd494a2c2c72107a41bf6dd1a8/keps/sig-apps/2599-minreadyseconds-for-statefulsets/kep.yaml",
    "evidence_id": "sd73srq4l2sx",
    "name": "StatefulSetMinReadySeconds"
  }
]

[
  {
    "label": "SIG",
    "key": "sig-apps",
    "title": "Apps",
    "url": "https://github.com/kubernetes/community/tree/440e496d3a172234d81728df1bfe43849b589adf/sig-apps",
    "evidence_id": "3xevdpgexdfq",
    "display_name": "Apps",
    "sig_label": "apps",
    "in_scope": true
  }
]

[
  {
    "label": "Person",
    "key": "ravisantoshgudimetla",
    "title": "ravisantoshgudimetla",
    "url": "https://github.com/ravisantoshgudimetla",
    "evidence_id": "rfukz3izsbss",
    "login": "ravisantoshgudimetla",
    "is_bot": false
  },
  {
    "label": "Person",
    "key": "soltysh",
    "title": "soltysh",
    "url": "https://github.com/soltysh",
    "evidence_id": "wmji7yq7e2r3",
    "login": "soltysh",
    "is_bot": false
  }
]

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

minReadySeconds for StatefulSets

Facts

How they connect

Impact of change

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