[chandler-users] collection size after upgrade

[Rick Rawson]

Jeffrey,

I obtain the item count when I "Export Collections and Settings..." The 
popup reports a number, which I took to be the number of items.

Given what you wrote about this being expected behavior, it sounds like 
purging and Exporting/Reloading have different effects on the 
repository. If I have performance problems (Chandler slows down), would 
you recommend that I export, restart with a fresh repository, then reload?

Rick



Jeffrey Harris said the following on 2/7/2008 2:47 PM:
> Hi Rick,
> 
>> At Sheila's request a couple of days ago, I made special note of the 
>> number of items in my collections: >5000
> 
> Just curious, what method did you use to find out how many items you've got?
> 
>> What happened? What does Export Collections and Settings... followed by 
>> Reload Collections and Settings... do, that purging does not do? Would 
>> you predict that performance would be improved by starting with a fresh 
>> repository and Reloading...?
> 
> Yes, actually, that is expected behavior, but I can see why it would be 
> surprising!
> 
> Chandler's concept of "item" varies confusingly, I'm afraid.  One item, 
> from the repository's perspective, could be:
> 
> - UI details that get persisted
> - A single occurrence of a recurring event that gets created lazily
> - A single location
> 
> Ideally, end-users would only really think of items as "this 
> note/event/task", but we haven't been careful enough about this.
> 
> Finally, your repository persists many different versions of these 
> items, so if you're a power user you can look back at the past state of 
> items.  This information gets lost when you upgrade, which makes your 
> repository snappier.
> 
> Sincerely,
> Jeffrey
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-- 
    Richard E. Rawson, DVM, PhD
Senior Lecturer
T8-008C Veterinary Research Tower
Department of Biomedical Sciences
College of Veterinary Medicine
Cornell University | Ithaca | NY | 14853
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