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NCCL AllReduce 2400x slower via Ray actors vs torchrun on H200 (NVSwitch) multi-node

community-backlog

Status: Open.

#61073 In ray-project/ray;

· dmvevents opened on Feb 15, 2026

[Bug] Leasing-state cleanup missing on canceled lease replies in GcsActorScheduler, causing stale state and potential scheduling stalls

bugSomething that is supposed to be working; but isn'tSomething that is supposed to be working; but isn't

community-backlog

triageNeeds triage (eg: priority, bug/not-bug, and owning component)Needs triage (eg: priority, bug/not-bug, and owning component)

Status: Open.

#61072 In ray-project/ray;

· red1239109-cmd opened on Feb 15, 2026

[Data][Refactor] test_csv/test_file_based_datasource

community-backlog

testingtopics about testingtopics about testing

Status: Open.

#61052 In ray-project/ray;

· yuhuan130 opened on Feb 13, 2026

[Train] patch_print_function() breaks smart_open's docstring capture

bugSomething that is supposed to be working; but isn'tSomething that is supposed to be working; but isn't

community-backlog

triageNeeds triage (eg: priority, bug/not-bug, and owning component)Needs triage (eg: priority, bug/not-bug, and owning component)

Status: Open.

#61050 In ray-project/ray;

· berkerpeksag opened on Feb 13, 2026

[Dashboard] <code>/api/data/datasets/{job_id}</code> should query datasets metrics from StatsActor rather than query prometheus

bugSomething that is supposed to be working; but isn'tSomething that is supposed to be working; but isn't

community-backlog

triageNeeds triage (eg: priority, bug/not-bug, and owning component)Needs triage (eg: priority, bug/not-bug, and owning component)

Status: Open.

#61045 In ray-project/ray;

· yuchen-ecnu opened on Feb 13, 2026

[Serve] autoscaling docs use metrics_interval_s as 0.1

contribution-welcomeCommunity contributions for this issue will be welcomed and prioritized for review.Community contributions for this issue will be welcomed and prioritized for review.

good-first-issueGreat starter issue for someone just starting to contribute to RayGreat starter issue for someone just starting to contribute to Ray

serveRay Serve Related IssueRay Serve Related Issue

Status: Open.

#61043 In ray-project/ray;

· abrarsheikh opened on Feb 13, 2026

[Serve] Allow disabling router retry

community-backlog

enhancementRequest for new feature and/or capabilityRequest for new feature and/or capability

triageNeeds triage (eg: priority, bug/not-bug, and owning component)Needs triage (eg: priority, bug/not-bug, and owning component)

Status: Open.

#61017 In ray-project/ray;

· cbiehl opened on Feb 12, 2026

[Data] Slow Ray Data groupby/aggregate on small dataset on single-node local cluster

bugSomething that is supposed to be working; but isn'tSomething that is supposed to be working; but isn't

community-backlog

triageNeeds triage (eg: priority, bug/not-bug, and owning component)Needs triage (eg: priority, bug/not-bug, and owning component)

Status: Open.

#61016 In ray-project/ray;

· christhorn2 opened on Feb 12, 2026

[core][rdt] Cut down limitations of custom transports

coreIssues that should be addressed in Ray CoreIssues that should be addressed in Ray Core

enhancementRequest for new feature and/or capabilityRequest for new feature and/or capability

P2Important issue, but not time-criticalImportant issue, but not time-critical

Status: Open.

#61014 In ray-project/ray;

· dayshah opened on Feb 12, 2026

[Data] Investigate removing <code>locality_with_output</code>

community-backlog

dataRay Data-related issuesRay Data-related issues

enhancementRequest for new feature and/or capabilityRequest for new feature and/or capability

P1Issue that should be fixed within a few weeksIssue that should be fixed within a few weeks

Status: Open.

#61013 In ray-project/ray;

· 400Ping opened on Feb 12, 2026

[Data] <code>test_recovery_skips_checkpointed_rows</code> is flaky

community-backlog

dataRay Data-related issuesRay Data-related issues

P1Issue that should be fixed within a few weeksIssue that should be fixed within a few weeks

Status: Open.

#61012 In ray-project/ray;

· slfan1989 opened on Feb 12, 2026

[Data] <code>test_runtime_metrics</code> is flaky

community-backlog

dataRay Data-related issuesRay Data-related issues

P1Issue that should be fixed within a few weeksIssue that should be fixed within a few weeks

Status: Open.

#61011 In ray-project/ray;

· slfan1989 opened on Feb 12, 2026