--- title: Volcano v1.16 Released: NamespaceQueue, fairshare, and a... description: Volcano v1.16.0 adds NamespaceQueue and a fairshare scheduling plugin. NamespaceQueue lets tenants manage hierarchical queues and quotas inside their own... canonical: https://daily.dev/posts/volcano-v1-16-released-namespacequeue-fairshare-and-a-broader-hypernode-ecosystem-imt7vg8u7 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Volcano v1.16 Released: NamespaceQueue, fairshare, and a broader HyperNode ecosystem | daily.dev og:description: Volcano v1.16.0 adds NamespaceQueue and a fairshare scheduling plugin. NamespaceQueue lets tenants manage hierarchical queues and quotas inside their own... og:url: https://daily.dev/posts/volcano-v1-16-released-namespacequeue-fairshare-and-a-broader-hypernode-ecosystem-imt7vg8u7 og:image: https://api.daily.dev/og/posts/imt7vg8U7.png og:image:alt: Volcano v1.16 Released: NamespaceQueue, fairshare, and a broader HyperNode ecosystem og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Volcano v1.16 Released: NamespaceQueue, fairshare, and a broader HyperNode ecosystem **[CNCF](https://daily.dev/sources/cncf)** · 11 min read · 0 upvotes · 0 comments ## Summary Volcano v1.16.0 adds NamespaceQueue and a fairshare scheduling plugin. NamespaceQueue lets tenants manage hierarchical queues and quotas inside their own namespace, within resource pools authorized by admins. Fairshare, inspired by Slurm, tracks cumulative resource-seconds per namespace with an exponential decay defaulting to a four-hour half-life, improving fairness across teams sharing a queue. The release also makes the HyperNode controller independently deployable so other schedulers can reuse its topology discovery, adds PodGroup topology anti-affinity to spread replicas across supernodes, and introduces an Unschedulable Job Cache that skips redundant scheduling checks, with a default five-minute watchdog retry. It also adds Kubernetes 1.36 support and requires Go 1.26 for source builds. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What does the NamespaceQueue feature in Volcano v1.16.0 do? NamespaceQueue is a namespaced resource in Volcano v1.16.0 that lets tenants manage hierarchical queues, quotas, and resource sharing within their own namespace. Administrators authorize a namespace to attach its queue hierarchy to a cluster Queue via spec.allowedNamespaces, after which tenants manage sub-hierarchies without needing cluster-wide queue access. It requires hierarchical capacity scheduling and is disabled by default. _Teams designing multi-tenant Kubernetes queue structures can track scheduler features like this via daily.dev._ ### How does the fairshare plugin in Volcano decide scheduling order between namespaces sharing a queue? The fairshare plugin tracks cumulative resource-seconds consumed by each namespace within a shared queue, inspired by Slurm fair-share scheduling. Consumption decays exponentially with a configurable half-life defaulting to four hours, so namespaces with lower historical usage get earlier consideration while old usage loses influence over time. It complements DRF's current-resource fairness and does not preempt running jobs. _Engineers tuning fair scheduling across teams can follow updates like Volcano's fairshare plugin on daily.dev._ ### What is the Unschedulable Job Cache in Volcano v1.16.0 and what is its default retry interval? The Unschedulable Job Cache records why a Job could not be scheduled and skips repeated checks until a relevant change makes retrying worthwhile, reducing redundant work in clusters with large pending backlogs. A watchdog retries cached Jobs after a configurable maximum skip duration that defaults to five minutes, and the cache clears on scheduler restart. It is disabled by default and enabled via a scheduler feature gate. _Operators chasing scheduler backlog performance can keep up with changes like this on daily.dev._ ## Similar posts on daily.dev - [Beyond Batch: Volcano Evolves into the AI-Native Unified Scheduling Platform](https://daily.dev/posts/beyond-batch-volcano-evolves-into-the-ai-native-unified-scheduling-platform-fa9jezis1) · CNCF · 0 upvotes · 0 comments - [Inspect Volcano workloads faster with Headlamp](https://daily.dev/posts/inspect-volcano-workloads-faster-with-headlamp-yutkvfhwm) · Kubernetes · 3 upvotes · 0 comments - [New Features We Find Exciting in the Kubernetes 1.36 Release](https://daily.dev/posts/new-features-we-find-exciting-in-the-kubernetes-1-36-release-1b2qr04hy) · MetalBear · 10 upvotes · 2 comments - [Configure admission fair sharing in Red Hat build of Kueue 1.4](https://daily.dev/posts/configure-admission-fair-sharing-in-red-hat-build-of-kueue-1-4-5cbb0b8uc) · Red Hat Developer · 0 upvotes · 0 comments --- Tags: [#kubernetes](https://daily.dev/tags/kubernetes), [#multi-tenancy](https://daily.dev/tags/multi-tenancy) [View this post on daily.dev](https://daily.dev/posts/volcano-v1-16-released-namespacequeue-fairshare-and-a-broader-hypernode-ecosystem-imt7vg8u7) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Volcano v1.16 Released: NamespaceQueue, fairshare, and a broader HyperNode ecosystem","url":"https://daily.dev/posts/volcano-v1-16-released-namespacequeue-fairshare-and-a-broader-hypernode-ecosystem-imt7vg8u7","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/volcano-v1-16-released-namespacequeue-fairshare-and-a-broader-hypernode-ecosystem-imt7vg8u7"},"datePublished":"2026-10-28T20:45:46.740Z","dateModified":"2026-10-28T21:36:42.889Z","description":"Volcano v1.16.0 adds NamespaceQueue and a fairshare scheduling plugin. 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