Out of curiosity do you have compression enabled? FWIW Deepika is has
been working on splitting the mempool assignments into much better
categories for better tracking. I suspect we are going to find a bug
where something isn't being cleaned up properly in buffer_anon. Adam's
been taking up that effort. Here's Deepika's PR for better mempool
tracking:
https://github.com/ceph/ceph/pull/34537
On 5/21/20 5:48 AM, aoanla@xxxxxxxxx wrote:
So, to jump into this thread - we seem to see the same problem as Harald on our cluster here in Glasgow, except our "worst case" OSDs are much worse than his [we get up to ~tens of GB in buffer_anon].
Activity is a mix of reads and writes against a single EC (8+2) encoded pool, with 8MB objects.
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