Re: intermittent -ENOSPC errors on btrfs filesystem with 170G free

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On Tue, 26 May 2015 12:18:40 -0600, Chris Murphy wrote:

> Oh yeah easy to miss, but obvious once pointed out:
> 
>> Data, single: total=227.94GiB, used=58.16GiB
> 
> I thought we had automatic deallocation of unused chunks but I guess
> it hasn't landed yet.

It did (in 3.18 IIRC), but that doesn't help with - for whatever reason -
severely unbalanced chunks, i.e. all allocated but each used only a
little bit. Now, how and why that happened..

-h

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