Re: Slow Outlook Connector

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Hi Michael

I have a site that uses the Bynari Outlook Insight connector that also has "speed" issues. As a general rule anything that uses the equivalent of the old CW mode is much slower than a direct IMAP connection. I have never actually checked on this but I get the impression that in direct IMAP mode the message is "pushed" from the server to client (a persistent connection) whereas anything CW mode is polled. The polling by default also checks more than just one folder for changes so thus will appear to take longer.

You also find that Outlook will only grab the header in direct IMAP mode. Your "getting complete message" infers the whole thing is being copied from the server to the local store. Perhaps you can change the connector behaviour to initially only grab the header?

Hope this helps

Cheers Bob


Michael Glad wrote:
We run Cyrus 2.3.11 + Fastmail patches as of January 2 on a 64 bit RHEL 5.1 
Opteron server.  We have some 1000 users and up til 300 simultaneous imap 
processes. The system works nicely with MUAs like Thunderbird and various 
flavors of Outlook and shows no signs of any significant load.

We do, however, have users using the Oracle Outlook connector who complain 
about bad performance.

I've set up a testaccount with a 16k messages folder.  Using Thunderbird, 
messages are shown w/o any noticeable delay when I click them.  Using 
Outlook+outlook connector, the message 'getting complete message' are shown 
for at couple of seconds before the message is actually displayed. This may 
be what annoys the users.

Are there other Cyrus sites out there with similar problems?

	-- Michael
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