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In the above example it is saying that there are 27476 files to be deleted, and it is currently deleting a file which has 10240 objects (so 40 GB, since each object has a size of 4 MB)
Wrt the default value we increase (10 → 40) the value of filer_max_purge_ops to mitigate this issue
V. questo thread: https://lists.ceph.io/hyperkitty/list/ceph-users@ceph.io/thread/2XJIEQ4XCGRGE4DFELXVUK7ANZEGPC4L/
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