How to skip errors on doveadm backup for migration ?

[Timo Sirainen]

On 08 Jan 2016, at 12:50, Christoph Adomeit <Christoph.Adomeit at gatworks.de> wrote:
> 
> Hi there,
> 
> I have to migrate data out of a very old (debian 4) and buggy cyrus mailserver.
> About 40 Users with 200000 Messages each.
> 
> Doveadm backup works quite well and gives me most of the mails. About every 100.000 Mail
> cannot be exported by cyrus. I do not want to bother about these errors.
> Maybe it is filesystem, maybe it is memory leak, or cyrus bug or whatever.
> 
> My problem is that doveadm backup exits with an error if it cannot read a mail.

What does Cyrus reply? Is it a NO reply to FETCH command?

> Is there some way or option to make doveadm backup just skip the errors and continue with the next message ?

Not currently. You could try if the attached patch helps. It should write the mail as empty.

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