volcano-sh/volcano

A Cloud Native Batch System (Project under CNCF)

Stars: 6k
Forks: 1.5k
Open beginner issues: 0
Indexed issues: 504
Avg merge: 1d 12h
Merged PRs (30d): 32

Dominant language: Go
License: Apache-2.0
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 20, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted good first issue

Beginner friendly Everything

Open All

504 open issues indexed

[Feature] Checkpoint-aware task victim ordering for preemption and reclamation Open

volcano-sh/volcano#5998 · 1 comment · 1 assignee · Opened Sep 17, 2026
gangreclaim: avoid unnecessary evictions when a subset of a SAFE bundle is sufficient Open

volcano-sh/volcano#5994 · 2 comments · 1 assignee · Opened Sep 17, 2026
Stale Pod informer events can corrupt JobInfo Pod cache after Pod recreation Open

kind/bug

volcano-sh/volcano#5986 · 1 comment · 1 assignee · Opened Sep 16, 2026
gangpreempt: avoid unnecessary evictions when a subset of a SAFE bundle is sufficient Open

kind/feature

volcano-sh/volcano#5984 · 1 comment · 1 assignee · Opened Sep 16, 2026
[release-1.15] fix: close int64-overflow bypass in DRA device count accounting Open

volcano-sh/volcano#5979 · 1 assignee · Opened Sep 16, 2026
Recreating a VCJob with the same name may cause its Pods to never be created Open

kind/bug priority/high

volcano-sh/volcano#5973 · 5 comments · 1 assignee · Opened Sep 14, 2026
:bug: StatefulSet PodGroup Can Be Incorrectly Deleted During Rapid Scale-to-Zero/Scale-Up Open

kind/bug

Difficulty 3/5 1-2 days Newbie friendliness 68/100

volcano-sh/volcano#5972 · 5 comments · Opened Sep 14, 2026
vcctl: jobflow and jobtemplate `-f` commands exit 0 when the API call fails Open

Difficulty 3/5 1-2 days Newbie friendliness 78/100

volcano-sh/volcano#5970 · 1 comment · Opened Sep 13, 2026
Agent Scheduler hot-reloaded configuration is not propagated to existing worker Frameworks Open

volcano-sh/volcano#5967 · 1 comment · 1 assignee · Opened Sep 11, 2026
Gang reclaim cannot be bounded by queue hierarchy: victim selection ignores ancestorReclaimLevel Open

kind/feature

Difficulty 5/5 Over a week Newbie friendliness 35/100

volcano-sh/volcano#5964 · 2 comments · Opened Sep 11, 2026
Empty intersection in Preemptable/Reclaimable/UnifiedEvictable is refilled by the next plugin in the same tier Open

kind/bug

Difficulty 3/5 1-2 days Newbie friendliness 84/100

volcano-sh/volcano#5963 · 2 comments · Opened Sep 11, 2026
[question]: purpose of Allocate/takeByTopology in the NUMA-aware scheduling path Open

kind/question

Difficulty 4/5 3-5 days Newbie friendliness 35/100

volcano-sh/volcano#5961 · 1 comment · Opened Sep 9, 2026
Queue skips Closing after delete-and-recreate while its PodGroups are still running Open

volcano-sh/volcano#5960 · 1 comment · 1 assignee · Opened Sep 9, 2026
Should gangreclaim consider resource fragmentation when selecting victims? Open

kind/question

Difficulty 5/5 Over a week Newbie friendliness 35/100

volcano-sh/volcano#5958 · 2 comments · Opened Sep 8, 2026
Stray fmt.Println in mutate_pod.go bypasses klog structured logging Open

volcano-sh/volcano#5951 · 2 comments · 1 assignee · Opened Sep 5, 2026
[Enhancement] Improve target task selection for gang-aware eviction Open

Difficulty 5/5 Over a week Newbie friendliness 42/100

volcano-sh/volcano#5946 · 2 comments · Opened Sep 4, 2026
[Feature] Support configurable safe-first and priority-first victim ordering for gang-aware preemption and reclamation Open

Difficulty 4/5 3-5 days Newbie friendliness 68/100

volcano-sh/volcano#5945 · 2 comments · Opened Sep 4, 2026
nodegroup: expose per-queue resource allocation metrics by nodegroup Open

kind/feature

Difficulty 4/5 3-5 days Newbie friendliness 55/100

volcano-sh/volcano#5942 · 1 comment · Opened Sep 3, 2026
[Performance] Reduce per-Pod snapshot overhead in agent-scheduler with a shared immutable snapshot Open

kind/feature

Difficulty 5/5 Over a week Newbie friendliness 35/100

volcano-sh/volcano#5941 · 2 comments · Opened Sep 2, 2026
[Performance] Bulk Pod status updates in CloseSession delay subsequent scheduling sessions for large gangs Open

kind/feature

Difficulty 5/5 Over a week Newbie friendliness 35/100

volcano-sh/volcano#5940 · 2 comments · Opened Sep 2, 2026
[Performance] Agent Scheduler's single Binder amplifies stale-generation conflicts as scheduling gets faster Open

kind/feature

Difficulty 5/5 Over a week Newbie friendliness 35/100

volcano-sh/volcano#5939 · Opened Sep 2, 2026
Add capability shard policy (aggregate resource budget) to the NodeShard controller Open

kind/feature

volcano-sh/volcano#5937 · 2 comments · 1 assignee · Opened Sep 1, 2026
Improve admission certificate lifecycle management with cert-manager Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

volcano-sh/volcano#5936 · Opened Sep 1, 2026
# [Bug] SchedulerCache.Evict races with plugin-side mutations of the cached Pod object Open

Difficulty 2/5 1-3 hours Newbie friendliness 84/100

volcano-sh/volcano#5932 · Opened Sep 1, 2026
Document usage and recommended configurations for gangpreempt and gangreclaim actions Open

help wanted kind/documentation

volcano-sh/volcano#5929 · 6 comments · 1 assignee · Opened Sep 1, 2026
Reduce updateQueueStatus latency during CloseSession Open

area/performance

volcano-sh/volcano#5921 · 2 comments · 1 assignee · Opened Aug 28, 2026
:bug: The capacity plugin may incorrectly prevent a job from being scheduled Open

kind/bug

volcano-sh/volcano#5911 · 9 comments · 1 assignee · Opened Aug 27, 2026
Volcano may auto-create a PodGroup for LWS-managed StatefulSets instead of deferring to LWS's own PodGroup Open

kind/feature

Difficulty 4/5 3-5 days Newbie friendliness 55/100

volcano-sh/volcano#5910 · 2 comments · Opened Aug 27, 2026
proportion plugin's Allocatable/Preemptive/Reclaimable checks have the same untracked-resource gap as #4863 Open

volcano-sh/volcano#5907 · 2 comments · 1 assignee · Opened Aug 26, 2026
reclaim: `conformance` in a tier above `capacity`/`proportion` silently disables deserved-based victim filtering (documented capacity-plugin config is affected) Open

kind/bug kind/documentation

Difficulty 4/5 3-5 days Newbie friendliness 52/100

volcano-sh/volcano#5896 · 2 comments · Opened Aug 24, 2026
Limitations of the Current Bin-Packing Strategy in Multi-Priority Scheduling Open

kind/feature

Difficulty 4/5 3-5 days Newbie friendliness 48/100

volcano-sh/volcano#5889 · 1 comment · 1 reaction · Opened Aug 23, 2026
Introducing Volens — an LLM-driven diagnostics agent for Volcano Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

volcano-sh/volcano#5888 · 2 comments · Opened Aug 22, 2026
PodLister.CachedPods initialization seems ineffective - UpdateTask always misses cache for newly allocated Pending tasks Open

kind/question

Difficulty 4/5 3-5 days Newbie friendliness 50/100

volcano-sh/volcano#5880 · Opened Aug 19, 2026
[Bug] proportion and capacity plugins panic on nil queueOpts for empty queues or orphaned jobs Open

priority/awaiting-more-evidence

volcano-sh/volcano#5878 · 6 comments · 1 assignee · Opened Aug 19, 2026
bug: command injection via ifName in network-qos tc AddFilter Open

volcano-sh/volcano#5874 · 1 comment · 1 assignee · Opened Aug 18, 2026
scheduler: PodGroup can be marked Completed while a sequential Job still has a Pending Pod Open

volcano-sh/volcano#5871 · 1 assignee · Opened Aug 18, 2026
[Bug] Duplicate JobFlow flow names can leave JobFlow stuck in Running Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

volcano-sh/volcano#5868 · Opened Aug 17, 2026
bug: slices.SortFunc comparator contract violation in allocate and simulate breaks sub-job ordering Open

kind/bug

volcano-sh/volcano#5860 · 2 comments · 1 assignee · Opened Aug 15, 2026
topology-aware preemption's SelectVictimsOnNode has the same untracked-resource gap as #4863, causes over-eviction Open

kind/bug

Difficulty 3/5 1-2 days Newbie friendliness 68/100

volcano-sh/volcano#5858 · 2 comments · Opened Aug 12, 2026
allocate action rejects any task requesting a resource untracked in node.Status.Allocatable, even into an idle node Open

kind/bug

Difficulty 3/5 1-2 days Newbie friendliness 74/100

volcano-sh/volcano#5857 · 5 comments · Opened Aug 12, 2026
[E2E Test] Pod not rescheduled to same hypernode after being killed in network topology test Open

kind/bug

volcano-sh/volcano#5856 · 3 comments · 1 assignee · Opened Aug 12, 2026
scheduler/framework: Pod.Spec.NodeName is not restored after allocation rollback Open

kind/bug

volcano-sh/volcano#5853 · 2 comments · 1 assignee · Opened Aug 12, 2026
capacity: ancestor queues lose track of shared ResourceClaims, in both directions Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

volcano-sh/volcano#5847 · 4 comments · Opened Aug 11, 2026
HAMi DeviceShare can skip Ascend device enforcement after NodeInfo initializes before DeviceShare Open

help wanted kind/bug priority/important-soon

volcano-sh/volcano#5846 · 11 comments · 1 assignee · Opened Aug 11, 2026
Large ephemeral-storage or extended-resource capability on a Queue admits nothing Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

volcano-sh/volcano#5844 · Opened Aug 10, 2026
Components discard buffered logs when exiting on startup failure Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

volcano-sh/volcano#5836 · Opened Aug 9, 2026
NVIDIA GPU-share undercounts GPU memory and device requests from native sidecars Open

kind/bug

volcano-sh/volcano#5829 · 1 comment · 1 assignee · Opened Aug 7, 2026
HAMi Ascend 集成场景下,高优先级任务抢占低优先级任务失败 Open

kind/bug

volcano-sh/volcano#5828 · 35 comments · 1 assignee · Opened Aug 7, 2026
有没有镜像支持 gangPreempt 和 gangReclaim Open

kind/documentation

Difficulty 3/5 1-2 days Newbie friendliness 48/100

volcano-sh/volcano#5827 · 4 comments · Opened Aug 7, 2026
* spec.flows[0].patch.jobSpec.tasks[0].template.spec.containers: Required value Open

kind/bug

volcano-sh/volcano#5823 · 3 comments · 1 assignee · Opened Aug 4, 2026

A short digest of beginner-friendly GitHub issues.