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Volcano

v1.14.0Orchestration & Management
Jan 31, 2026

OTHER 61

Volcano v1.14.0 is a substantial feature and maintenance release with new scheduling, topology, colocation, accelerator, API, and integration capabilities, alongside fixes for correctness and stability issues. No security advisories or explicitly described vulnerabilities are noted.

All 61 other recorded changesadditions 28 · fixes 25 · constraints 7 · value changes 1

additions (28)

  • The Sharding Controller introduces a scalable multi-scheduler architecture that dynamically computes candidate node pools for each scheduler.
  • Currently supports scheduling shard by CPU utilization, with an extensible design to support more policies in the future.
  • --shard-sync-period=60s --enable-node-event-trigger=true
  • we introduce a dedicated Agent Scheduler.
  • Support highestTierName for specifying maximum network tier constraints by name.
  • Enable partitioning of Volcano Jobs for better resource management and fault isolation.
  • CPU Throttling (CPU Suppression)
  • This feature introduces the ColocationConfiguration CRD, which allows users to define memory QoS policies for specific workloads.
  • introduces integrated support for Ascend vNPU (virtual NPU) scheduling
  • deviceshare.AscendMindClusterVNPUEnable: true
  • deviceshare.AscendHAMiVNPUEnable: true deviceshare.SchedulePolicy: binpack
  • Node Scheduling Shard CRD. Manages dynamic candidate node pools for specific schedulers.
  • Multi-cluster training job abstraction for the Volcano Global enhancements.
  • Data-aware scheduling for federated environments.
  • Defines fine-grained network topology constraints and gang scheduling policies at the SubGroup level.
  • New configuration for queue dequeue strategies.
  • Optional enhanced admission mechanisms
  • Added GHCR as an alternative to Docker Hub
  • Support for updating pods without recreation
  • Enables role-based elasticity and Gang Scheduling for distributed inference workloads
  • **NodeShard CRD**: Manages dynamic candidate node pools for specific schedulers.
  • **Fast-Path Scheduling**: Independent scheduler optimized for latency-sensitive workloads
  • Multiple workers process pods concurrently from the scheduling queue, increasing throughput
  • Conflict-Aware Binder resolves scheduling conflicts before executing real binding
  • Enhanced queue mechanism with urgent retry support
  • **HyperNode-Level Binpacking**: Optimization for resource utilization across network topology boundaries.
  • **MindCluster Mode** - Integrated from the official Ascend cluster scheduling add-on
  • **HAMi Mode** - Developed by the HAMi community

fixes (25)

  • Fixed reclaimableFn to correctly handle scalar resources and ensure victims are selected based on all relevant resource dimensions
  • Addressed edge cases in resource calculation to prevent scheduling loops and incorrect evictions.
  • Fixed timeout due to un-released PreBind lock
  • Fixed panic when child queue capability check fails
  • Fixed job pending state caused by minAvailable/minPartitions mismatch
  • Fixed early transition to Aborted when terminating pods are removed
  • Fixed memory leak caused by leftover metrics data due to race conditions
  • Fixed cluster-wide scheduling failure due to missing validation for child queue guarantee sum
  • Fixed unexpected behavior when pod is evicted
  • Fixed scheduling failures caused by task member changes in PodGroup
  • Fixed memory leak in volcano-scheduler deletedJobs queue
  • Fixed VGPU request when multiple cards have different total video memory
  • Fixed gpu resource error at allocate state
  • Fixed resource comparison preventing reclaim
  • Fixed queue share calculation for best-effort queues
  • Fixed systemd driver with containerd runtime oversubscribed cgroups
  • Fixed panic when numatopology is added and updated in short time before snapshot
  • Fixed inaccurate message when podgroup is ready
  • Fixed nil pod when AlreadyExists error on create
  • Fixed vNPU not working in multi-type NPU clusters
  • Fixed memory allocation restrictions in Hami vNPU scene
  • Fixed multiple bugs in MindCluster vNPU mode
  • Fixed annotation handling for replicaset
  • Fixed to add node futureIdle resource first
  • Fixed cache communication issues

constraints (7)

  • Support fine-grained network topology constraints at the SubGroup/Partition level.
  • Improved gang scheduling to support both Job-level and SubGroup-level consistency.
  • Extended CPU Burst support to generic operating systems (Ubuntu, CentOS, etc.)
  • Volcano Agent now fully supports Cgroup V2 environments
  • Added CEL validation markers to batch, scheduling, topology, and flow APIs.
  • percentage-based coefficients (range 0-100) for highRatio, lowRatio, and minRatio
  • support for generic operating systems

value changes (1)

  • Support Kubernetes 1.34
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