OSD memory leak when scrubbing [0.56.6]

[Oliver Francke <Oliver.Francke@filoo.de>]

Well,

subject seems familiar, version was 0.48.3 in the last mail.

Some more of the story. Before successful upgrade to latest bobtail 
everything with regards to scrubbing was disabled.
That is via:
     ceph osd tell \* injectargs '--osd-max-scrubs 0'

We are running fine now since 9th of may. Fine means though, not have 
ran any scrubbing for ages.
This morning I re-started scrubbing. After a couple of hours I detected 
the first OSD's eating up memory.
Top-scorer was running with 23GiB rss. After stopping scrubbing again 
there was no regain of memory.

Not anyone else with perhaps large pg's experiencing such behaviour?

Any advice on how to proceed?

Thnx in advance,

Oliver.

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Oliver Francke

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