service imap pid nnn in BUSY state: terminated abnormally

Michael D. Sofka sofkam at
Sat Oct 9 00:04:23 EDT 2010

Bron,  Thanks for the answer.  A one way xfer in fine.  I'm just testing the new server, and the migration process.

Is the old format updated on xfer? The account I moved is working fine.


"Bron Gondwana" <brong at> wrote:

>On Fri, Oct 08, 2010 at 02:40:01PM -0400, Michael D. Sofka wrote:
>> But, when I try to move it back to the 2.2.12 back-end the same error 
>> message.
>> Is this a cyrus version incompatibility?  That is, are the moves 
>> one-way, at least when using xfer?
>Gosh yes.  The mailbox internal format has been upgraded.  XFER is
>a "dumb copy" - the files themselves are transferred across.  There's
>no way to downgrade a mailbox again.
>I don't think there ever will be, unless you decided that the wire
>format is always the oldest possible and converted the cyrus.index
>file back to that format before transfer.
>The new replication format that I've put into effect for cyrus 2.4
>could probably be used to move mailboxes to earlier versions of
>Cyrus since it only transfers minimal information across the network
>and forces the other end to recreate the index record - but it would
>have to be backported to 2.2 and 2.3 (and installed on all your
>servers) to make it work.  Basically you can't retrofit forwards
>compatibility to an already existing install.
>So yeah - no copy back.  At least not if the cyrus.index file
>format has changed.

Michael D. Sofka
Sr. Systems Programmer
Communications & Middleware Technologies

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