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>> rm: cannot remove '/design/4695/8/6-50kb.jpg': No space left on device “No space left on device” issue typically in ceph FS might be caused if you have files > 1million(100000) in “single directory”. To mitigate this try increasing the "mds_bal_fragment_size_max" to a higher value, example 7 million (700000) [mds] mds_bal_fragment_size_max = 700000 I am not going detail here, that said, there are many other tuning params including enabling dir frag, multiple MDS etc. It seems your CEPH version is 10.2.10(Jewel). Luminous(12.2.x) support better with multiple MDS and dir_frag etc. Jewel
some of these options might be experimental features you might need todo bit reading related to cephFS. Just a note of advise based on my experience, cephFS is ideal for large files in MB/GB is not great for small files(in kbs). Also split your files into
multiple sub-dirs to avoid the similar issue or any likewise. -- Deepak From: ceph-users [mailto:ceph-users-bounces@xxxxxxxxxxxxxx]
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