Scaling Ceph-Samba connections (sambaXP 2025)
Talk from Sachin Prabhu and Avan Thakkar (IBM / Red Hat) at sambaXP 2025).
Abstract:
As a continuation of the discussion on integrating CephFS with Samba, this talk explores the challenges encountered when scaling SMB services in Ceph. The SMB service utilizes a Samba container to export CephFS volumes via the vfs_ceph_new plugin. However, scaling the number of client connections led to resource exhaustion on the server host, traced back to Samba's forking model and libcephfs caching behavior. This presentation delves into the root cause of the issue and introduces the proposed solution – the multiplexing proxy. Additionally, we will discuss planned enhancements to further improve the proxy's efficiency and scalability.
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sambaXP is organised by SerNet: https://sernet.com