dovecot - Nov 2010 - dsync mbox->mdbox II: highest_modseq changed

Hi again,

after replacing CRLF in 4 mboxes dsync was able to sync all of the 30+GB
mailstore to mdbox.

Now the (repeated) calling of dsync yields info messages of the kind

dsync(athimm): Info: old/speicher: highest_modseq changed: 1 != 10
dsync(athimm): Info: root/root-heretic: highest_modseq changed: 1 != 10
dsync(athimm): Info: lists/ccrma.stanford.edu/planetccrma: highest_modseq
changed: 11 != 14

I actually have 987 such messages for a total of 1115 mboxes. I checked
a couple of them to see whether this is a CRLF issue and found no CRLF,
so it's probably something different.

As long as the mboxes were still being delivered to or read from I
thought it was normal, but I'd like to see a silent dsync which would
give me more confidence in the migration process. So I kept from
delivering to the mbox store as well as reading from it and performed
multiple dsyncs.

The output of dsync became stable, e.g. the "highest_modseq changed"
messages were exactly the same. Before nuking all indexes from the mbox
storage and the mdbox itself and then repeating the whole process (which
does take a long time), I wanted to know whether I should debug
something.

Thanks!
-- 
http://thimm.gr/ - http://ATrpms.net/
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On Thu, 2010-11-18 at 18:57 +0200, Axel Thimm wrote:
> dsync(athimm): Info: old/speicher: highest_modseq changed: 1 != 10
> dsync(athimm): Info: root/root-heretic: highest_modseq changed: 1 != 10
> dsync(athimm): Info: lists/ccrma.stanford.edu/planetccrma: highest_modseq
changed: 11 != 14
These don't really matter. It just couldn't sync the modseqs correctly.
I should try to fix those somehow some day, but I think the problem here
is that mbox code can't handle this correctly. It should have increased
the modseqs to 10, 10, 14 but apparently it didn't.