[Bug 1945819] Re: Octopus: Performance issue with HybridAllocator
James Page
1945819 at bugs.launchpad.net
Fri Mar 18 16:07:05 UTC 2022
These fixes are included in 15.2.16 - see bug 1964802
** Changed in: ceph (Ubuntu)
Status: New => Won't Fix
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https://bugs.launchpad.net/bugs/1945819
Title:
Octopus: Performance issue with HybridAllocator
Status in ceph package in Ubuntu:
Won't Fix
Bug description:
Opening to track upstream issue https://tracker.ceph.com/issues/52804
Issue is HybridAllocator tail latency observed in clusters with NVMe
OSDs after upgrade to Octopus from Mimic.
The allocator default was switched to "hybrid" from "bitmap" by
upstream. Switching the OSDs back to the bitmap allocator removed the
observed tail latency.
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