mdbox "doveadm purge" strategy

[Jesus Cea]

Hi there.

I am using mdbox storage with great success but I am seeing something I
find strange and I would like to compare notes with you.

When doing "doveadm purge", "m.*" files with non deleted messages are
left alone, but "m.*" files with deleted messages copy the "non deleted"
messages to a newly created "m.*" file and delete the original.

Good so far.

What surprises me is that the newly created "m.*" files are not
fullsize. they can be "small" files, not using the 2MB max size I have
configured for mdbox storage. Moreover, those files stay in that size
forever, no new messages are appended ever.

I guess each old "m.*" file with deleted messages generates a new
independent "m.*" containing only the non deleted messages. I wonder if
that is the case and if that is a fundamental issue that can't be
changed. I would like my "m.*" files to use the full configured mdbox
size, instead of having quite a few of new SMALL "m.*" files.

Thanks for your time and attention!.

-- 
Jesús Cea Avión                         _/_/      _/_/_/        _/_/_/
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"El amor es poner tu felicidad en la felicidad de otro" - Leibniz

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