Re: Can imap syncs be done without INTERNALDATE?

[John Goerzen <jgoerzen@xxxxxxxxxxxx>]

Marc MERLIN wrote:
> On Fri, May 29, 2009 at 03:31:59PM -0500, John Goerzen wrote:
>> Marc MERLIN wrote:
>>> I am having issues linked the amount of overhead imap traffic that 
>>> offlineimap
>>> generates during each big folder sync.
>>>
>>> The dev guy I talked to said that I shouldn't be sending all that
>>> INTERNALDATE traffic and should be able to sync without asking for that
>>> (which apparently doubles the amount of traffic generated). He says other
>>> programs that do 2 way imap syncs do so without INTERNALDATE.
>>>
>>> So, what about offlineimap, can that be removed, or does it fulfill an
>>> important purpose?
>> Where exactly is INTERNALDATE being requested wher eyou think it
>> shouldn't be?
> 
> wrtr:
>    DEBUG[imap]:   33:06.96 wrtr > CNEO10 FETCH 1:41740 (FLAGS UID 
> INTERNALDATE)\r\n
> 
> which in turn causes:
> redr:
>    DEBUG[imap]:   33:07.08 redr < * 1 FETCH (UID 1 INTERNALDATE "06-Dec-2005 
> 21:13:19 +0000" FLAGS ())\r\n
> 
> When I get 41740 UIDs back with a long internaldate that I'm not sure I need, 
> it doubles
> the size of the replies, subsequent traffic, and causes me to download over 
> 1GB a day 
> for only syncing my folders every 15mn.
> 
> offlineimap should only need the UID for syncing purposes, should it not?

That may well be.  If you'd like to submit a patch, it ought to be
relatively easy.

-- John

> 
> Marc