--- title: Install epa-orchestrator on Debian using the Snap Store | Snapcraft description: Get the latest version of epa-orchestrator for on Debian - NUMA-aware CPU and hugepage resource orchestrator for snaps url: https://snapcraft.io/install/epa-orchestrator/debian --- [Canonical Snapcraft](https://snapcraft.io/) # Install epa-orchestrator on **Debian** # epa-orchestrator [Canonical](https://snapcraft.io/publisher/canonical "View all snaps from Canonical") * [Canonical](https://snapcraft.io/publisher/canonical "View all snaps from Canonical") * [Server and Cloud](https://snapcraft.io/search?categories=server-and-cloud) [Install](https://snapcraft.io/install/epa-orchestrator/debian#install) #### NUMA-aware CPU and hugepage resource orchestrator for snaps **EPA Orchestrator** is designed to provide secure, policy-driven resource orchestration for snaps and workloads on Linux systems. Its vision is to enable fine-grained, dynamic allocation and management of system resources—starting with CPU pinning and memory management, with plans to expand to other resource types and orchestration policies. The orchestrator exposes a secure Unix socket API for resource allocation and introspection, making it easy for other snaps (such as openstack-hypervisor) and workloads to request and manage dedicated or shared resources in a controlled manner. Features: * **CPU Pinning and Allocation**: Allocate isolated and shared CPU sets to snaps and workloads, supporting both dedicated and shared CPU usage models with basic system-size heuristics. * **Memory Management and Hugepage Tracking**: Introspect NUMA hugepages and track hugepage allocations across NUMA nodes with per-service allocation tracking. * **NUMA-Aware Core Allocation**: Request a specific number of cores from a particular NUMA node with override/append semantics and exact-count guarantees. * **Resource Introspection**: Query current allocations and available resources via a secure API. * **Secure Unix Socket API**: All orchestration actions are performed via a secure, local Unix socket with JSON-based requests and responses. * **Basic Allocation Heuristics**: Automatic allocation based on system size (small vs large systems) when no specific core count is requested. CPU Allocation Policy: Small vs. Large Systems: When a client requests core allocation with `num_of_cores: 0`, EPA Orchestrator applies a policy based on the total number of CPUs detected: * **Small systems (≤100 CPUs):** + By default, 80% of the available CPUs are allocated to the requesting snap or workload. + The remaining 20% are left unallocated (shared). * **Large systems (>100 CPUs):** + By default, 16 CPUs are always reserved (left unallocated/shared). + All other CPUs are allocated to the requesting snap or workload. This policy ensures that on large servers, a fixed number of CPUs are always available for system or shared use, while on smaller systems, a proportional allocation is used. NUMA-Aware Core Allocation Policy: The NUMA-aware allocation action allows services to request a specific number of cores from a particular NUMA node: * **NUMA Locality**: Cores are allocated from the specified NUMA node to ensure optimal memory access patterns. * **Force Reallocation**: NUMA allocation will override any existing non-explicit allocations to other services, even if they span multiple NUMA nodes. * **Atomic Exact-Count**: If fewer than the requested number of cores are available in the NUMA node, the request fails with an error; no partial allocation occurs. * **Priority System**: NUMA allocations take precedence over automatic allocations and cannot be overridden by other services. * **Per-NUMA override/append semantics**: If the same service requests the same NUMA node again, it overrides previous cores from that node. If it requests a different NUMA node, the new cores are appended so the service may hold allocations across multiple NUMA nodes. * **Per-NUMA deallocation**: Sending `num_of_cores = -1` for a node deallocates any existing cores for that service in that node. `num_of_cores = 0` is invalid for NUMA. ### Package name * epa-orchestrator --- ### License * Apache-2.0 --- ### Last updated * 3 July 2026 - 2024.1/stable * 29 June 2026 - 2024.1/candidate --- ##### Report a Snap Store violation * [Report this Snap](https://snapcraft.io/install/epa-orchestrator/debian#report-snap-modal) --- ## Enable snaps on Debian and install epa-orchestrator Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully. Snaps are discoverable and installable from the [Snap Store](https://snapcraft.io/store), an app store with an audience of millions. ### Enable snapd On Debian 9 (Stretch) and newer, snap can be installed directly from the command line: ``` sudo apt update sudo apt install snapd ``` After this, install the snapd snap in order to get the latest snapd: ``` sudo snap install snapd ``` ### Install epa-orchestrator To install epa-orchestrator, simply use the following command: ``` sudo snap install epa-orchestrator ``` ### Other popular snaps… [See more...](https://snapcraft.io/search?categories=featured) [See more in Featured](https://snapcraft.io/search?categories=featured) ### More things to do… #### [Get the snap store](https://snapcraft.io/snap-store) Browse and find snaps from the convenience of your desktop using the snap store snap. #### [Learn more about snaps](https://snapcraft.io/docs) Interested to find out more about snaps? Want to publish your own application? Visit [snapcraft.io](https://snapcraft.io/) now. [Back to top](https://snapcraft.io/install/epa-orchestrator/debian) © 2026 Canonical Ltd. Ubuntu and Canonical are registered trademarks of Canonical Ltd. Powered by [Charmed Kubernetes](https://www.ubuntu.com/kubernetes) [Join the forum](https://forum.snapcraft.io/), contribute to or report problems with, [snapd](https://bugs.launchpad.net/snapd), [Snapcraft](https://bugs.launchpad.net/snapcraft), or [this site](https://github.com/canonical/snapcraft.io/issues/new). * [Share on Twitter](https://twitter.com/snapcraftio) * [Share on Facebook](https://www.facebook.com/snapcraftio) * [Share on YouTube](https://www.youtube.com/snapcraftio) * [Terms of Service](https://ubuntu.com/legal/terms-and-policies/snap-store-terms) * [Data privacy](https://www.ubuntu.com/legal/data-privacy) * [Manage your tracker settings](https://snapcraft.io/install/epa-orchestrator/debian) * [Service status](https://status.snapcraft.io/) * [Other functions](https://dashboard.snapcraft.io/) * [Contact us](https://snapcraft.io/about/contact-us)