On 05/09/2019 18.39, Yan, Zheng wrote:
stray subdir never get fragmented in current implementation.
Then this is a problem, right? Once stray subdirs hit 100K files things will start failing. Is there a solution for this, or do we need to figure out some other backup mechanism that doesn't involve keeping two months worth of snapshots? That CephFS can't support this kind of use case (and in general that CephFS uses the stray subdir persistently for files in snapshots that could remain forever, while the stray dirs don't scale) sounds like a bug.
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