Re: No space left on device

[Zhenshi Zhou <deaderzzs@xxxxxxxxx>]

Answer to myself,

What I get wrong is that the file number is much more than 20000.

My db shows the directory has 520000 files so that it alarmed "no space left".

I solve this by increasing "mds_bal_fragment_size_max" to 1000000.

Thanks

Zhenshi Zhou <deaderzzs@xxxxxxxxx> 于2018年9月26日周三 下午4:58写道：

Hi,

I encountered an issue similar to bug 19438 .

I have an attachment directory in cephfs and one of the sub 

directory includes about 20-30 thousand small files from 100k-1M 

each. When I created file in this sub directory it alarms: 

"cannot touch ‘attachment/sme/2018-09/test’: No space left on device"

There's no error in any ceph log.  "ceph -s" returns "HEALTH_OK". 

Besides, "mds_bal_frag" is set to "true".

# ceph daemon mds.ceph-mds config show | grep mds_bal_frag

    "mds_bal_frag": "true",

    "mds_bal_fragment_fast_factor": "1.500000",

    "mds_bal_fragment_interval": "5",

    "mds_bal_fragment_size_max": "500000",

ceph version 12.2.5, using kernel client.

Anything I can do to solve this issue?

Thanks

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